07 Yukon what octane?
05-09-2007, 08:37 PM
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07 Yukon what octane? I bought a 07 Yukon six months ago and I've always used 93 octane, and was wondering if it was ok to run 87, or which octane gas is better for this truck.
05-10-2007, 12:05 AM
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whatever the manual calls for. if the truck is optimized from the factory to run on 87, you will see no measureable performance/mileage increase from running 93.
i dont own one, but i can almost guarantee it says to use 87. most likely the only GM truck to need 93 is the trailblazer ss.
i dont own one, but i can almost guarantee it says to use 87. most likely the only GM truck to need 93 is the trailblazer ss.
05-10-2007, 10:51 AM
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I know Ford recommends 87 for trucks etc... I put 93 in if I'm going to be towing or hauling something. I would just read the manual and see what it recommends. Just use a reputable Gas. (Shell,Mobil etc..)
