Quote:
Originally Posted by Theurig
do a search on this... Tons of information on this site on Regular vs Premium.
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It all says you have to use premium!
Here is a quote from the technical editor of
The Star, the magazine of the Mercedes Benz Club of America:
Quote:
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Knock sensors are not designed to allow use of lower-octane fuel. ... By running lower octane fuel, you keep ignition timing in a permanent state of retard, which is unhealthy for the engine. ... To use the knock sensor's capability to cheap out on fuel is a foolish mistake.
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Yeah, there's lots of discussion by any advice that regular fuel is usable is mistaken and just wishful thinking.
If you want to use regular fuel, get an American car.
That is, one with an oversize, slow-running, low compression engine.