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Car Forum / Mercedes-Benz Cars / February 2005300SD Mileage?
I just bought a used 83' 300SD (the one advertised here by Wingnut) which seems to running fine. What kind of mileage should I expect? Thanks, Paul about 24 mpg in commute driving, 26 or 27 mpg on trips. Be sure the tires are correctly inflated and remember that diesels are basically constant speed engines, not jackrabbits. > about 24 mpg in commute driving, 26 or 27 mpg on trips. > > Be sure the tires are correctly inflated and remember that diesels are > basically constant speed engines, not jackrabbits. Thanks! 24 mpg isn't bad for a big old tank like that! I have read here something about "cetane" and when I just filled up the tank today I noticed that the pump said "40 Cetane". Some of the messages on the Yahoo boards indicate that the Mercedes diesel engines run better on higher cetane values than this. Does anyone know about this? Don't worry about that... just drive it. You got a bargain! > Don't worry about that... just drive it. You got a bargain! I'm not worried about the mileage for the money's sake.. I am more worried about it from a mechanical point of view. >I have read here something about "cetane" and when I just filled up the >tank today I noticed that the pump said "40 Cetane". Some of the >messages on the Yahoo boards indicate that the Mercedes diesel engines >run better on higher cetane values than this. Does anyone know about this? Yeah, cetane is to diesel what octane is to gas. Thge more the better. North America has lousy 40 cetane fuel. Europe is 50+. You can get 50 cetane fuel here sold as "Premium diesel" and it has a higher heat value - you will get betere milage and performance as you get a bigger bang per given amount of fuel. It's a little bit more expensive but well worth it. Do the math and you'll see you'll pay less per mile covered by paying more for premium.  SignatureNeed Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org >I just bought a used 83' 300SD (the one advertised here by Wingnut) >which seems to running fine. What kind of mileage should I expect? Best I ever got was 33 on a freshly adjusted/tuned car on a 55mph trip of 100 miles. Worst I get is 25. These are imperial gallons. SignatureNeed Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org All above is correct. I've driven my '83 300SD for the last 110,000 miles and get around 23 highway and 26 city mpg. My highway speeds are 75-85 mph. Good luck, great car! Doug On my 83 300SD with 112,000 mi I get 25 to 26 on the hiway and I drive the limit plus and around town I get 19 to 21mpg. Signature73 Hank WD5JFR > All above is correct. I've driven my '83 300SD for the last 110,000 > miles and get around 23 highway and 26 city mpg. My highway speeds are > 75-85 mph. Good luck, great car! Doug > >I just bought a used 83' 300SD (the one advertised here by Wingnut) > >which seems to running fine. What kind of mileage should I expect? > > Best I ever got was 33 on a freshly adjusted/tuned car on a 55mph > trip of 100 miles. Worst I get is 25. These are imperial gallons. Only 33 miles per imperial gallon? IIRC an imperial gallon is equal to 5/4 of a US gallon. That would translate to only 26.4 miles per US gallon. SignatureRoger Shoaf About the time I had mastered getting the toothpaste back in the tube, then they come up with this striped stuff. >> >I just bought a used 83' 300SD (the one advertised here by Wingnut) >> >which seems to running fine. What kind of mileage should I expect? [quoted text clipped - 4 lines] >Only 33 miles per imperial gallon? IIRC an imperial gallon is equal to 5/4 >of a US gallon. That would translate to only 26.4 miles per US gallon. That doesn't seem right then. When I wrote 100 I meant 1000. I blamew[1] this new keyboad. Ok lemme try it another way. I get 400-600 miles per tank of fuel. Those would be imperial miles none of this funny metric stuff. [1] See! Damn keyboard. SignatureNeed Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org 26 mpg is good 28 is great 24 to 25 at hi speeds on flats any thing below 20 you have problems the case, minus a few cans! |
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