Date: Thu, 09 Oct 1997 14:42:07 -0500 From: "D.G." <DGoiffonnopsamcom> Subject: Re: Premium Gas
Maboul wrote: > > Would premium gas make a difference in any way for my '88 900S automatic? Premium gas makes a difference only if the ECU is retarding the timing to avoid detonation (knocking) when you use gas with a lower octane level. The rule of thumb is to use the lowest level octane gas that doesn't decrease the efficiency of your engine. Using gas with higher octane rating than your engine can take advantage of is a waste of money. DG.