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Car Forum / Chrysler Cars / April 2005Synthetic oil price question
I read in another post: I am curious to know how often other synthetic users change their oil. While I want to provide maximum protection for the engine, I also want to avoid *overkill* considering the increase in oil prices. Why should the rising cost of crude oil cause the price of synthetic oil to rise? Although I remember the Cuban sugar embargo. Coke and Pepsi went up, and so did their diet pops that contained no sugar. >I read in another post: > [quoted text clipped - 4 lines] > Why should the rising cost of crude oil cause the price of synthetic > oil to rise? Because it is made from crude oil. I pick up a 5 qt container of Mobil 1 for under $20.00 at WalMart and the new extended change version is about $22.00. Richard > Why should the rising cost of crude oil cause the price of synthetic > oil to rise? Because synthetic oil is made from petroleum starting products. > > Why should the rising cost of crude oil cause the price of synthetic > > oil to rise? > > Because synthetic oil is made from petroleum starting products. Depends on what your definition of "synthetic oil" is. Mobil 1 is made from polyalphaolefin (PAO) and polyol and/or dibasic esters. There was also another ingredient in the discontinued "Tri-Synthetic" formulas. PAO is made with natural gas as a starting ingredient. Esters use a different ingredient. This is essentially making larger polymers out of smaller molecules. <http://www.officialgazette.com/docs/000/z00043847.shtml> <http://www.imakenews.com/lng/e_article000052004.cfm> Most of the US marketers of "synthetic" motor oil are selling "Group III" (Very Highly Refined) petroleum oil - often blended with esters. Castrol Syntec is among these. My understand of the process is that it can only make molecules smaller, although more uniform. Apparently in Europe, a Group III oil can't be legally marketed as being a full synthetic oil. Mobil filed an FTC claim in the late 90's and lost. I use castrol syntec every 5,000km. Steve >I read in another post: > [quoted text clipped - 7 lines] > Although I remember the Cuban sugar embargo. Coke and Pepsi went up, > and so did their diet pops that contained no sugar. "TomKan" <tomkanpa@aol.com> wrote in message > news:1112276178.840054.321300@o13g2000cwo.googlegroups.com... >>I read in another post: >> >> I am curious to know how often other synthetic users change their oil. >> While I want to provide maximum protection for the engine, I also want >> to avoid *overkill* considering the increase in oil prices. I use Mobil1 every 3,000 miles Mobil One 5W30 every 6,000 miles (~9677 KM). > I use castrol syntec every 5,000km. > [quoted text clipped - 11 lines] > > Although I remember the Cuban sugar embargo. Coke and Pepsi went up, > > and so did their diet pops that contained no sugar. Mobil 1 in both my '92 Dynasty 3.3L and my '99 Caravan 3.0L I change both at 3000 to 4000 mile intervals. I have used Mobil 1 synthetic since about 1982 and have changed it about every 8-12,000 miles in the following vehicles. 1980 Chevy Citation w/2.8 Liter Eng. had 150,000 mi on it before giving it away (burned no oil) 1986 Nissan 300ZX w/3.0 Liter Eng. has 220,000 mi on orig en(burns 1 qt ever 1200 mi) 1998 Chry T&C w/3.8 Liter Eng. has 115,000 mi on orig eng. (currently has an oil leak) The stuff has never let me down and the 300zx had 110,000 miles on it when I bought it and started using Mobil1. Greyhound Tampa FL > Mobil 1 in both my '92 Dynasty 3.3L and my '99 Caravan 3.0L > > I change both at 3000 to 4000 mile intervals. > I have used Mobil 1 synthetic since about 1982 and have changed it about > every 8-12,000 miles [quoted text clipped - 13 lines] > > > > I change both at 3000 to 4000 mile intervals. I use NAPA's *house* brand that is made by Ashland, the makers of Valvoline. I use it in my 1993 Voyager, and 1998 Stratus. I change at 5,000 - 6,000 miles, which is under the recommended 7,500 miles for *normal* use. I used to use Chevron's synthetic, but can no longer find it. -Kirk Matheson |
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