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rick 10-13-2000 12:18 AM

what is the lowest octane that can be used in the 420/430 class cars

300EVIL 10-13-2000 12:27 AM

103 oct.,,,,,,,,,,,,,, just kidding, trying to save on cash or what? mercedes engines are performance engines. i wouldn't use anything less than 89 oct.

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87 300E
BLACK GOLD WITH CREAM INTERIOR, SPOILER, AIRDAM
CLEAR MARKERS

87 420SEL
BRONZE WITH CREAM INTERIOR

LarryBible 10-13-2000 06:37 AM

Rick,

Exactly what year and model car are you asking about?

Larry

rick 10-13-2000 12:42 PM

420E 1995, Thanks.


DEPRIEST 10-13-2000 01:14 PM

I don't know about the new MB's but my 1986 MB really likes high octaine. Like 92. I tried to save a couple of bucks by using the lower priced stuff, but I really noticed a difference in the mileage I was getting. 86 octaine gets me roughly 18.75 MPG, while the 92 gets me around 23.5 MPG. Sometimes more. Especially if I slightly overinflate the tires a pound or two. The difference in price I think is well made up for with an extra 75 miles per tank! (Depending of course on how I drive and how late I'm running) Since I spend an hour and a half per day commuting almost exclusively on the freeway, I have time to notice these things. I'm going to try for 25 MPG with the tank I have now. I've heard people argue that the brand of Gasoline makes a difference. I haven't found that to be true. The only thing effected by different gasoline brands is my pocket book!

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Kyle De Priest
1986 300e
1972 BMW R75/5 (Best there is)


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