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Re: Who sells the best quality gas?! (archive)
[ Follow Ups ] [ 6-series (E24) Message Board ] [ Msg. Board FAQ ]
Posted by Mike Barrett on January 08, 2000 at 11:28:46:

In Reply to: Re: Who sells the best quality gas?! posted by Mike Prete on January 08, 2000 at 10:14:44:

: : I was wondering where everyone buys there gas?

: : I use Amoco/Texaco whenever I can, but there is a noticable difference when I must stray... I would be interested in all of your opinions...

: : jm
: : 79 320i
: : 85 M635csi*
: : 86 735i
: : 87 L6
: : 88 L7
: : 90 750il*
: : 91 735i

: : *current cars, guess which are my favorit-e24...

: I agree. Amoco is my first choice. I used to use Shell, but I noticed my car ran poorly on it. Mobil is my second choice. Use the highest octane at all times.

I agree on Amoco and Mobil, but strongly disagree on the "use the highest octane" part. You should in fact use the LOWEST octane that your car needs; anything else is a waste of money with no added performance. You will get worse gas mileage with higher octane gas, since the octane rating is a measure of gas' anti-knock additive. It is not a "power rating." If your car has an aftermarket chip, or is knocking under load, you need higher octane gas. Otherwise, stick with what the manual recommends.

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