Quote:
Originally Posted by reddeerguy2015
6.2 does not require premium fuel. We have one in our suv - good engine and surprisingly good on fuel.
I've also got a 6.0 liter in one of the work trucks, nice motor but hard on fuel. I'm sure this is the engine the new 6.6 will be replacing??
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The 6.2L in my 15 Silverado needed premium....otherwise it pinged and detonated badly.
Some others say they dont need to....I did