Originally Posted by cokeefe' post='877138' date='May 13 2009, 10:22 AM

if you're pinging on pump gas, you probably have other issues.

Originally Posted by robg' post='877105' date='May 13 2009, 09:33 AM

This might be a good time to revive the very old thread about the "benefits" of using fuel with a higher than recommended octane.

Originally Posted by unknown' post='877368' date='May 13 2009, 12:06 PM

+1

Originally Posted by robg' post='877105' date='May 13 2009, 06:33 AM

We can debate the benefits / harms of using toluene as an octane booster, but no one with an E60 should be getting pinging from using lower octane fuel. Th engine management software will detect this and adjust the timing to prevent pinging. You will loose some performance , but you will not getting pinging or damage the engine.

Originally Posted by or_550i' post='878364' date='May 14 2009, 12:46 PM

Indeed! I just finished a 2k mile drive with my e60 and never once did the engine ping when using 85 to 87 octane. What I did find interesting was that the miles per gallon remains the same regardless of the fuel octane but sluggishly accelerates with low octanes 85 to 87.

Originally Posted by eddie33081' post='877007' date='May 13 2009, 04:23 AM

Since we're back on this subject. How come you guys find 93 at your local chevrons. The ones around me only have 91. Any other gas stations sporting 93?

Thanks