Quote:
Originally Posted by HoodCheck
The mileage really isn't any better in the V6, not enough to use as an excuse for it (I pushed 26mpg on the highway in my 2012 2SS I had a number of years ago), but being able to use 87 might come in handy lol
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That's a funny statement right there! Both the LS3 and the LFX were designed to operate on 87 octane fuel. If either were to require premium fuel it would be the V6 at 11.5 to 1 compression not the LS3 at 10.7 to 1. Interestingly, GM was able to get these engines to operate on regular fuel, however nearly every "technologically superior" German vehicle must have premium fuel!