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Car Forum / Driving, Maintenance, Tuning / General Car Topics / January 2005Gas
OK, this is off topic for alt.home.repair but I can't resist putting it in my crosspost, there's so many canny folks who check out that NG, and I know almost all of them drive. I was chatting with my auto mechanic the other day and I asked him if he thought all gas was pretty much the same these days - an idea I'd been encountering. He didn't agree at all. Now I guess I should say that I have no connections with the petroleum industry of any kind, none in the auto industry either, or any other industry associated in any way with gasoline. He said his truck was running sluggishly and he put in a tank of 76 high octane and could hardly believe the difference it made. Suddenly the truck ran smoothly. He said he has a lot of evidence that he and other people are getting very significantly better mileage since switching to 76. I guess that's 76 Union, unless they've changed their name. I asked him if he had any experience with their regular gas, and he couldn't really say, it seemed. I thought I'd throw this out there and see what other people think. Myself, I've been using the cheapest regular I can find, usually from Costco, or a station I know where they sell pretty cheap if you give them cash. I drive less than 2000/year with my two cars, so it isn't a giant deal for me, but more mileage and smoother performance would be reason enough for me to switch to a recommended brand. Dan > I was chatting with my auto mechanic the other day and I asked him if he > thought all gas was pretty much the same these days - an idea I'd been > encountering. He didn't agree at all. Did he tell you about 1. Octane levels 2. Leaded vs. lead-free gasoline 3. Additives e.g. MMT 4. Supplementary mixed fuels e.g. alcohol ? Most pumps are labeled for what they contain in all four respects.  SignatureDon Phillipson Carlsbad Springs (Ottawa, Canada) :> I was chatting with my auto mechanic the other day and I asked him if he :> thought all gas was pretty much the same these days - an idea I'd been [quoted text clipped - 7 lines] :Most pumps are labeled for what they contain in all :four respects. No, we didn't talk about all that. I'm in California and I don't think they're selling leaded gasoline. We do have additives and the CA standards are different from most of the USA, making the gas a fair amount more expensive, probably in the neighborhood of 10%. Gasohol is starting to take off, at least in some places I guess. Can most cars burn gasohol? I should take the time to read the pumps, like you say. I want to die calm and peacefully in my sleep like my grandfather. Not kicking and screaming like the passengers of his car. On 1/1/2005 10:15 AM US(ET), Dan_Musicant took fingers to keys, and typed the following: >:> I was chatting with my auto mechanic the other day and I asked him if he >:> thought all gas was pretty much the same these days - an idea I'd been [quoted text clipped - 15 lines] >burn gasohol? I should take the time to read the pumps, like you say. > In my area of NY, the Getty gas stations are the cheapest. They could be up to $0.10 (10 cents) per gallon cheaper than other stations in the same general area. If you look on the Getty pumps, you will see a sticker saying that the gas contains 10% Ethanol, rather than the ground polluting, mpg lowering, and more expensive MBTE, which other gas stations have added to their winter gas. I have been using the Getty gas, and don't find any difference in engine performance. SignatureBill "willshak" <willshak@hvc.rr.com> wrote in message > If you look on the Getty pumps, you will see a sticker saying that the > gas contains 10% Ethanol, rather than the ground polluting, mpg lowering, > and more expensive MBTE, which other gas stations have added to their > winter gas. I think most stations are using ethanol now. MBTE is being banned in many areas. > :> I was chatting with my auto mechanic the other day and I asked him if he > :> thought all gas was pretty much the same these days - an idea I'd been [quoted text clipped - 17 lines] > I want to die calm and peacefully in my sleep like my grandfather. Not > kicking and screaming like the passengers of his car. This is Turtle Again. *** Octane Burns to make the car run good. *** Additive clean and fix problems. *** Yes Gasohol is different but it has a octane rating as the same as not. Alcohol is a very good fuel to burn for if you will check up here on the fuel the cars in the Indy 500 are using. You will find out they use pure Alcohol burning of the fuel. They don't use gas because you can get more power out of Alcohol fuel than unleaded gas. All the high speed or drag racer prefer Pure Alcohol over unleaded gas. So if it is me, Give me 90% Alcohol and 10% gas and get more power and mileage. Now check your book in the auto to see about burning Alcohol fuel and it will tell you about it. When all else fails , Read the instructions. TURTLE >> :> I was chatting with my auto mechanic the other day and I asked him if he >> :> thought all gas was pretty much the same these days - an idea I'd been [quoted text clipped - 17 lines] >> I want to die calm and peacefully in my sleep like my grandfather. Not >> kicking and screaming like the passengers of his car. > This is Turtle Again. Rather pathetic, really. > *** Octane Burns to make the car run good. Rather pathetic, really. > *** Additive clean and fix problems. Rather pathetic, really. > *** Yes Gasohol is different but it has a octane rating as the same as not. Rather pathetic, really. > Alcohol is a very good fuel to burn for if you will check up here on the fuel > the cars in the Indy 500 are using. You will find out they use pure Alcohol > burning of the fuel. Pity they are very different engines, and its different alcohol too. > They don't use gas because you can get more power out of Alcohol fuel than > unleaded gas. Rather pathetic, really. > All the high speed or drag racer prefer Pure Alcohol over unleaded gas. So if > it is me, Give me 90% Alcohol and 10% gas and get more power and mileage. Rather pathetic, really. Pity about the price. > Now check your book in the auto to see about burning Alcohol fuel and it will > tell you about it. Rather pathetic, really. > When all else fails , Read the instructions. Rather pathetic, really. > TURTLE Rather pathetic, really. <SNIP> >This is Turtle Again. > [quoted text clipped - 7 lines] >Alcohol over unleaded gas. So if it is me, Give me 90% Alcohol and 10% gas and >get more power and mileage. Actually, alcohol has such a high octane rating that race car engines designed to burn it have a higher compression ratio. Without the higher compression ratio, an engine would actually get less energy from a gallon of alcohol than from a gallon of gasoline. Fuel mileage would actually be a little worse. Cars often get very slightly less mileage with "gasohol" and other "oxygenated fuel" because these fuels have slightly less chemical energy per gallon. Some high octane gasolines have alcohol to boost the octane and as a result you may get very slightly less fuel economy and power. ---------------------------------------------------------- As for higher octane than the instructions call for being necessary when the engine has a lot of miles on it: This is *sometimes* true. The usual cause is bad spark plugs (replace) or carbon deposits in the engine making detonation occur more easily. Probably less likely if you properly maintain your engine and air filter. But only use higher octane to the extent necessary to eliminate knocking. ---------------------------------------------------------- - Don Klipstein (don@misty.com) <SNIP> >This is Turtle Again. > [quoted text clipped - 7 lines] >Alcohol over unleaded gas. So if it is me, Give me 90% Alcohol and 10% gas and >get more power and mileage. Actually, alcohol has such a high octane rating that race car engines designed to burn it have a higher compression ratio. (Indy cars burn methanol rather than ethanol, but that does not change any other points.) Without the higher compression ratio, an engine would actually get less energy from a gallon of alcohol than from a gallon of gasoline. Fuel mileage would actually be a little worse. Cars often get very slightly less mileage with "gasohol" and other "oxygenated fuel" because these fuels have slightly less chemical energy per gallon. Some high octane gasolines have (or at least had several years ago) alcohol to boost the octane and as a result sometimes get/got very slightly less fuel economy and power. ---------------------------------------------------------- As for higher octane than the instructions call for being necessary when the engine has a lot of miles on it: This is *sometimes* true. The usual cause is bad spark plugs (replace) or carbon deposits in the engine making detonation occur more easily. Probably less likely if you properly maintain your engine and air filter. But only use higher octane to the extent necessary to eliminate knocking. ---------------------------------------------------------- - Don Klipstein (don@misty.com) > <SNIP> > > [quoted text clipped - 12 lines] > Actually, alcohol has such a high octane rating that race car engines > designed to burn it have a higher compression ratio. Excuse me, that's the point of the higher octane. Ethanol has *less* energy per gallon than gasoline. This means that per gallon, you should pay *less* for it. My rule is two or three cents. SignaturePersonally, I believe that 9/11 should have taught us the lesson that we can't let these countries simmer endlessly in disillusionment without doing something about it because people become susceptible to delusional ideas and delusional actions. Iraq, in my view, is but the first of many efforts, certainly not all military, to remake the very face of the world as constitutional representative democracy. > Excuse me, that's the point of the higher octane. Ethanol has *less* > energy per gallon than gasoline. This means that per gallon, you should > pay *less* for it. My rule is two or three cents. Since the ethanol costs more to produce then gasoline, the prices goes up not down. Whether you think its a good value for what you get is a different matter. Signature---------------------------------------------------------------- o |~> Dominique Cormann | (\._[~] dcormann at rogers.com |~|) |~~| http://kozmik.guelph.on.ca > > Excuse me, that's the point of the higher octane. Ethanol has *less* > > energy per gallon than gasoline. This means that per gallon, you should > > pay *less* for it. My rule is two or three cents. > > Since the ethanol costs more to produce then gasoline, the prices goes > up not down. No, I mean if you are buying the product, you should discount it for having ethanol in it because ethanol has less energy per gallon than gasoline. I know it costs more to produce and is available at competitive price points only due to tax subsidies to companies such as ADM. SignaturePersonally, I believe that 9/11 should have taught us the lesson that we can't let these countries simmer endlessly in disillusionment without doing something about it because people become susceptible to delusional ideas and delusional actions. Iraq, in my view, is but the first of many efforts, certainly not all military, to remake the very face of the world as constitutional representative democracy. >> <SNIP> >> > [quoted text clipped - 19 lines] > energy per gallon than gasoline. This means that per gallon, you should > pay *less* for it. My rule is two or three cents. This is Turtle. You forgot that the U.S. Government has octane rating and this covers everything you say and burniability of the fuel. 87 Octane Gasohol or 87 Octane Gas have the same burniability as each other. If it was not the same it would have a less or more of a Octane rating on it. TURTLE >>> <SNIP> >>> > [quoted text clipped - 20 lines] >> energy per gallon than gasoline. This means that per gallon, you should >> pay *less* for it. My rule is two or three cents. > This is Turtle. Rather pathetic, really. > You forgot that the U.S. Government has octane rating and this covers > everything you say and burniability of the fuel. Its more complicated than that. > 87 Octane Gasohol or 87 Octane Gas have the same burniability as each other. More complicated than that too. > If it was not the same it would have a less or more of a Octane rating on it. More complicated than that too. > TURTLE Rather pathetic, really. > >> <SNIP> > >> > [quoted text clipped - 26 lines] > the same burniability as each other. If it was not the same it would have a less > or more of a Octane rating on it. I didn't forget that they sell gasoline with a specific octane rating. Octane rating has nothing to do with the energy in the fuel. Ethanol has less energy per gallon than gasoline therefore you are getting less energy per gallon and should therefore not be willing to pay as much as you pay if you are buying all gasoline. You might, of course, choose the gasohol because you wanted to cheaply get the water out of your tank or because you think that other additives used to raise octane are a danger to the environment, but at least then you are making a choice based on something other than a misguided look at volumes. SignaturePersonally, I believe that 9/11 should have taught us the lesson that we can't let these countries simmer endlessly in disillusionment without doing something about it because people become susceptible to delusional ideas and delusional actions. Iraq, in my view, is but the first of many efforts, certainly not all military, to remake the very face of the world as constitutional representative democracy. >> >> <SNIP> >> >> > [quoted text clipped - 43 lines] > to the environment, but at least then you are making a choice based on > something other than a misguided look at volumes. This is Turtle. I like your theory on Octane rating being different for Gasohaol and regular gas and you need to discuss this with the DOT of your state and have them change the Octane rating to reflect the less power from Alcohol gas than regular unleaded gas. I think they would be interesed in your theory here. TURTLE >>> >> <SNIP> >>> >> > [quoted text clipped - 44 lines] >> to the environment, but at least then you are making a choice based on >> something other than a misguided look at volumes. > This is Turtle. Rather pathetic, really. > I like your theory on Octane rating being different for Gasohaol and regular > gas and you need to discuss this with the DOT of your state and have them > change the Octane rating to reflect the less power from Alcohol gas than > regular unleaded gas. I think they would be interesed in your theory here. Nope, they realise what he said is correct. The octane rating has nothing to do with the energy content. Its about what compression ratio it can be used at without predetonation etc. > TURTLE Rather pathetic, really. > This is Turtle. > [quoted text clipped - 4 lines] > > TURTLE You need to look up what octane means. It is the resistance to ignition value. It is NOT the amount of energy per volume. Signature---------------------------------------------------------------- o |~> Dominique Cormann | (\._[~] dcormann at rogers.com |~|) |~~| http://kozmik.guelph.on.ca >> This is Turtle. >> [quoted text clipped - 12 lines] > It is the resistance to ignition value. It is NOT the amount of energy > per volume. This is Turtle. I don't study gas as a hobby but if the octane rating was all the same as you say here. I could run 87 octane gas in my Lexus LS-400 and not have to burn the 93 octane fuel. I can fill it with 87 Octane fuel and it don't knock but a turtle could out run me with it in the car. I put the 93 in it and it hauls a.s. I look at what it does and not what it is suppose to prevent or prevent it from knocking. TURTLE >>> This is Turtle. >>> [quoted text clipped - 5 lines] >>> unleaded >>> gas. I think they would be interesed in your theory here. >> You need to look up what octane means. >> >> It is the resistance to ignition value. It is NOT the amount of energy >> per volume. > This is Turtle. Rather pathetic, really. > I don't study gas as a hobby Or any other way either, obviously. > but if the octane rating was all the same as you say here. I could run 87 > octane gas in my Lexus LS-400 and not have to burn the 93 octane fuel. Not a f.cking clue, as always. > I can fill it with 87 Octane fuel and it don't knock but a turtle could out > run me with it in the car. I put the 93 in it and it hauls a.s. Rather pathetic, really. > I look at what it does and not what it is suppose to prevent or prevent it > from knocking. Rather pathetic, really. > TURTLE Rather pathetic, really. ... > I don't study gas as a hobby ... Did you follow the link I posted or google octane rating to actually see what it is? > ...but if the octane rating was all the same as you > say here. I could run 87 octane gas in my Lexus LS-400 and not have to burn the > 93 octane fuel. I can fill it with 87 Octane fuel and it don't knock but a > turtle could out run me with it in the car. I put the 93 in it and it hauls a.s. > I look at what it does and not what it is suppose to prevent or prevent it from > knocking. What is available in the "high-test" pump is <more> than just additional anti-knock compound... > What is available in the "high-test" pump is <more> than just additional > anti-knock compound... that warm, secure feeling... <http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm> ...that comes from being hornswaggled*. "Shell premium contains SIX TIMES the minimum required detergent agents!!!!!" which works out to a producer's cost of $0.004/gallon extra... In addition to the FTC website, i urge you all to at least become passingly aware of the DOE's Energy Information Agency. <http://www.eia.doe.gov> .max *unless your owner's manual specs it, of course. Signaturethe part of <betatron@earthlink.net> was played by maxwell monningh 8-p ... > >> You forgot that the U.S. Government has octane rating and this covers > >> everything > >> you say and burniability of the fuel. 87 Octane Gasohol or 87 Octane Gas have > >> the same burniability as each other. If it was not the same it would have a > >> less > >> or more of a Octane rating on it. ... > I like your theory on Octane rating being different for Gasohaol and regular gas > and you need to discuss this with the DOT of your state and have them change the > Octane rating to reflect the less power from Alcohol gas than regular unleaded > gas. I think they would be interesed in your theory here. Turtle, better check some more on what octane rating <really> is...it is <not> a measure of the specific energy of the fuel...there is no rating of "burniability" even if there were such a word... http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm > ... > > >> You forgot that the U.S. Government has octane rating and this covers [quoted text clipped - 12 lines] > <not> a measure of the specific energy of the fuel...there is no rating > of "burniability" even if there were such a word... Octane is a hydrocarbon with a nominal 'octane rating' of 100 which various gasoline blends are compared to. Ethanol has a higher octane rating than the blends alone but a lower potential energy, so when buying on octane rating, the ethanol blend has less potential energy and therefore value, so it should be discounted. SignaturePersonally, I believe that 9/11 should have taught us the lesson that we can't let these countries simmer endlessly in disillusionment without doing something about it because people become susceptible to delusional ideas and delusional actions. Iraq, in my view, is but the first of many efforts, certainly not all military, to remake the very face of the world as constitutional representative democracy. > OK, this is off topic for alt.home.repair but I can't resist putting > it in my crosspost, there's so many canny folks who check out that [quoted text clipped - 3 lines] > he thought all gas was pretty much the same these days - an idea I'd > been encountering. He didn't agree at all. Gasoline can vary in many ways. Octane is just one. Additives, age of the gas, cleanliness formula (winter vs. summer) etc. all make differences. Brands are not very different in NA as regulations and market forces tend to keep them the same. My recommendation is simple. Only buy from stations that do a lot of business and buy the octane specified for your engine by the manufacturer or if the engine is old and starting to show signs that it needs higher go a little higher. (higher octane does not mean more power, better gas or better additives) SignatureJoseph Meehan 26 + 6 = 1 It's Irish Math "Dan_Musicant" <dmusicant@pacbell.net> wrote in message > I was chatting with my auto mechanic the other day and I asked him if he > thought all gas was pretty much the same these days - an idea I'd been > encountering. He didn't agree at all. > He said his truck was running sluggishly and he put in a tank of 76 high > octane and could hardly believe the difference it made. Suddenly the [quoted text clipped - 4 lines] > I asked him if he had any experience with their regular gas, and he > couldn't really say, it seemed. Spend a day at the docks and the gas storage places. You'll see all sorts of truck getting the same gas for different brand stations. It may be possible that the truck responded to a different gas, but there may be other reasons. Why was it sluggish? Is there some mechanical reason that it was not running properly? Unless something was different than normal (he may have changed computers for all I know) there is no difference in 99% of the cars designed for 87 octane. I drive about 30,000 miles a year, sometimes as much as 50,000. I've tried different brands, different octanes, and if the car is running properly I've not see any difference. This is in a half dozen cars I've driven over the past 15 or 20 years. I go for cheap and have no problems. My older car has 139,000 miles (the plugs were changed at 75,000) and it starts, runs, and gets the same gas mileage as the day it was new. My new car has 90,000 miles, original plugs, same deal. Try the 76 and report back. Chances are thee will be no difference except a few $ out of your wallet. waste of money using premium gas when your motor will run on regular..The really old cars run like sh.t on the 10% ethanol/gasoline fuel >OK, this is off topic for alt.home.repair but I can't resist putting it >in my crosspost, there's so many canny folks who check out that NG, and [quoted text clipped - 26 lines] > >Dan I think it was Edwin who advised you to spend some time at the docks or refineries... BELIEVE HIM.... Actually my Brother was (he died a few years ago) employed by a major Petroleum Company...( Chem Eng) .... and he told me that the raw refined gasoline regardless of brand is 100 percent the same... The difference is in the additives that are added to that raw gasoline by each specific brand . Very Common for Exxon to swap 100,000 barrels of gas to say Texaco in Penna for an equal amount of gas in California ...hell of a lot cheaper then transporting it... that gas then has Exxons additives mixed with it and is trucked to Exxons Stations ... He advised me ...to .. SWITCH BRANDS... every 5000 or so miles... especially in my cars that still ran carburetors ...since the additives can accumulate...switching brands has a tendency to reduce the accumulation (don't ask me how...I guess because the new additives can remove the build up left by the old additives......he did explain it but I lone ago forgot the facts)... Anyhow I have been following his advice for at least 15 years and have had absolutely no problems ...BUT who said I would have had problems if I just stuck with one brand... Both my brother and I "restored" and collected cars as a hobby and most of them were 50's and 60' Muscle cars with Carburetors.. and like your cars were not driven move then 2500 miles a year... (we both add lead to the gas however if the engines were originally designed for for leaded gas...and we always parked the cars with full tanks of gas... BUT if you drive so little ...why are you even bothered with saving 2 cents a gallon by driving to Costco etc... The cost of gasoline is such a small amount ot what it costs you to own and drive the cars (consider deprecation, insurance, etc) that driving an extra mile to find a cheap station is a waste of time... Just my thought on New Years Day.... and it is nice not to be hung over.... Bob Griffiths > Myself, I've been using the cheapest regular I can find, usually from > Costco, or a station I know where they sell pretty cheap if you give > them cash. I drive less than 2000/year with my two cars, so it isn't a > giant deal for me, but more mileage and smoother performance would be > reason enough for me to switch to a recommended brand. to me, there are 3 tiers of gas... the full price, like chevron, 76, etc. the discounters, like costco, sams, vons the unknown mom n pop places. the discounters have a reputation to uphold, so their stations are generally clean, and they still have a good price. i just dont trust the unknowns. yes, they all get gas from the same sources. but who knows when the mom n pop places replace their gas pump fuel filters, etc. > OK, this is off topic for alt.home.repair but I can't resist putting it > in my crosspost, there's so many canny folks who check out that NG, and [quoted text clipped - 13 lines] > people are getting very significantly better mileage since switching to > 76. I guess that's 76 Union, unless they've changed their name. In Australia it seems we have different octane ratings to you. Ordinary unleaded gas (we call it petrol) is 91 octane. Premium is 95 or 96. There are some super premiums at 98 octane. I have an 89 Ford Telstar (which is a rebadged Mazda 626, made by Mazda in Japan). It has about 100k miles on it. My mechanic recommended Shell Premium (96 Octane) as he said while it costs more (approx 10%), the decreased fuel consumption will often make up the difference, plus the engine will run cooler. I thought it was hogwash until one day when we were on a long trip in summer (when it was 95-100 degrees F air temperature), the engine was getting very hot (almost at the top of the gauge) so the next lot of fuel we put in was preimum. The engine immediately went back to normal temperature. Plus we have found the lower fuel consumption more than makes up for the extra cost, so we have stuck with premium. 91 octane fuel is below the common octane levels in many other countries, but usually high-selling imported cars sold here are modified to run ok on 91. However some cars (sporty cars e.g. Mazda RX8, or low selling models like VW Polo) are not modified so they require 95 octane. http://www.caltex.com.au/products_oil_detail.asp?id=15 http://www.bp.com.au/catalogue/default.asp Shell http://tinyurl.com/5hanq Here we also get coupons for Caltex and Shell from the two major supermarkets. Spend $30 AUD or more and gets 4c AUD / litre off the next petrol purchase - that's about 4% off. Petrol here is about $1.00 AUD / litre - that's about $2.95 USD per US gallon. Premium is about 10% dearer. 76, huh? Around here, the Octane ratings are 87, 98, 91, and sometimes 93... > OK, this is off topic for alt.home.repair but I can't resist putting it > in my crosspost, there's so many canny folks who check out that NG, and [quoted text clipped - 26 lines] > > Dan On 1/2/2005 10:40 AM US(ET), HeatMan took fingers to keys, and typed the following: >76, huh? > >Around here, the Octane ratings are 87, 98, 91, and sometimes 93... > 76 is not the octane number, it is the brand of gas. http://www.76.com/ > > [quoted text clipped - 31 lines] > > SignatureBill > OK, this is off topic for alt.home.repair but I can't resist putting it > in my crosspost, there's so many canny folks who check out that NG, and [quoted text clipped - 26 lines] > > Dan This is Turtle. I have been down this road on gas for my company trucks for years and came up with two things to do and you will do fine with fuel. 1) look in the book that come with the auto and get the Octane Rated gas your suppose to be burning. Then when going to gas up Get that octane rated fuel only for your auto is designed to burn that octane fuel. The ratings will be from 86 to 93 octane ratings. Us the one the auto maker say for your computor on the auto is set to burn that octane fuel. I have my truck that are to be burninmg 87 octane fuel. I can put 93 octane fuel and it seems I get worst mileage than with 87 octane fuel. Now the newer model have a sencer to adjust the fuel flow rate to the engine to take care of 93 in a 87 octane car but it will take a 1/2 tank or so for your computor to get use to the higher octane fuel. Pick out the octane rating your auto should be using from the book in the auto and use it. 2) Alway buy your gas at stations that move a lot of fuel to not get old gas sitting in the tanks for too long and start to degrade. Gas will be very poor if left in a tank for 18 months and need rerefining of it. Tell your Mechanic to go read his book for his auto on what octane fuel he should be burning and he will solve his problem with fuel. Now 20+ years ago Amoco had White Gas and others has regular leaded gas. This white gas was better but when regulation and unleaded gas come along. The white gas was history. Your Mechanic has these left over thoughts of this era and I still have them but they are just thoughts now a days. When all else fails Read the instructions. TURTLE Use only top tier gas: http://www.toptiergas.com/retailers.html > OK, this is off topic for alt.home.repair but I can't resist putting it > in my crosspost, there's so many canny folks who check out that NG, and [quoted text clipped - 26 lines] > > Dan > He said his truck was running sluggishly and he put in a tank of 76 high > octane and could hardly believe the difference it made. Suddenly the > truck ran smoothly. He said he has a lot of evidence that he and other > people are getting very significantly better mileage since switching to > 76. I guess that's 76 Union, unless they've changed their name. I see in another post that you're from CA. So am I. This makes a difference. The 76 station near my house has a HUGE sign that advertises "NO MTBE." Don't know if all 76 stations are MTBE-free, but most of the others haven't gotten rid of it yet. That probably accounts for the difference in mileage. I don't know about the running smoother thing, though. I heard that newer cars/trucks need the octane they're designed for even though they run fine (no knocks) w/ lower octane gases. The computers adjust to make them run ok, but the performance and efficiency go down. So I think it just depends on the car. |
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