Quote:
Originally Posted by Lynn
Don't know about the 6.2 with 10 speed.
My 06 Yukon XL Denali with 6.0 and 4L65E and full time all wheel drive wouldn't get 20 mpg off a cliff.
14 around town. Don't know what it gets on the highway without anything in tow, as I just don't drive it on the highway unless I am towing.
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The ole 6.0s .... the mpg of a BB with the power of a 5.3.
All that changed when they went to direct injection, the 5.3 and 6.2 get roughly the same mpgs albeit you should run premium in a 6.2 with the 11.1:1 compression. Ive owned several of the new 5.3 and 6.2s and can vouch for the mpg claim. The power difference is amazing and I will never go back to a 5.3.
06-23-2024, 12:24 AM
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