New Chevy 6.0L gasser -- Octane?
Just bought the new Chevy 2500HD with 6.0L gas ... and wondering what you guys run for octane. And why you choose it? -- The 'why' is important too ... because it's not just about mpg, it's about ...
Forum Discussion
My '11 GMC 6.0 calls for 87 so I burn 87. If it needed higher octane it would be labeled as such. I have used 91 and did not notice any difference.
My Acura is labeled for 91 and says 87 is optional. There is a big difference in performance and fuel mileage with the 91 both for the good. I think that buying a higher octane rating than what the vehicle was tuned for will do more to lighten your wallet than anything else.
My Acura is labeled for 91 and says 87 is optional. There is a big difference in performance and fuel mileage with the 91 both for the good. I think that buying a higher octane rating than what the vehicle was tuned for will do more to lighten your wallet than anything else.
