I am seeing very contradicting forums online as to which level octane fuel to use with my vehicle. it is a 2012 chevy silverado 1500 6.2l FlexFuel engine.

10

Asked by Nov 27, 2013 at 11:48 PM about the 2012 Chevrolet Silverado 1500 LT Crew Cab 4WD

Question type: General

6.2L V8 FlexFuel Engine

7 Answers

Higher octane=more expensive...more bang for the buck...what else needs to be said?

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10

Judge roy, what I am getting at is, which level octane would be the best for optimum service life for this vehicle. sorry for not being clear on that.

1 out of 1 people think this is helpful.

good question....the number of revolutions of the motor equals the life of the motor...so both will be equal in my humble opinion because neither will make MORE revolutions per highway mile.....just these things are overestimated....pushin' the limit of the castings and construction cannot HELP the same number of revolutions will be realized either way....yes, abusive power will be abusive to the motor~

59,235

I'd check the owner's manual. Your truck probably requires regular (87 octane). Personally I use premium (93 octane) in everything except my '03 S-10. It's my "beater". Yes, premium is more expensive but it burns cleaner, slower, and hotter. I bought my '93 Caprice new with 13 miles on it. I never used anything other than premium even though it called for regular. I drove that car for 19 years and never once had a fuel system problem or any sensor failures. It does make a difference over the long haul. HTH. -Jim

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yes if you're kind to your car...it will be kind to you~

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11,855

If you have money to burn, use the more expensive gas, that's why the gas companies are making huge profits. Today's gas really does nothing more than push the pistons down. Mix up your octanes once in a while to clean out the fuel system, the same as using different gas companies product. Unless there is knocking in the motor, use the lesser octane fuel. If you life in the Midwest where they have corn distilled gas, use the 86 stuff or the flex fuel.

2 out of 2 people think this is helpful.
16,915

If you car says run premium then do it. If not then run regular. The gains cant be felt in your average car when running premium vs reg. And any gain there will be lessened later on becasue the computer will "even" things out. Once again, AVERAGE computer controlled vehicle. It gives as much gain as washing your car or putting a cold air intake on your stock vehicle.

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