Chevy 8.1 Vortec fuel mileage??
03-21-2003, 04:34 PM
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Sean. Its like this. We upgraded my wifes Z66 Avalanche to a 2500 4x4 with the 8.1L.
Lets just say that if you look close to the nice dash computer system in the 03's, it seems to always say "Hey, you just passed a gas station"
With the 373's (granted under 5kmiles so far), you can barely squeeze 16 on the highway, and we turn of the computer around town.
(If you can go for the Duramax w/Allison get it)
Bob
Lets just say that if you look close to the nice dash computer system in the 03's, it seems to always say "Hey, you just passed a gas station"
With the 373's (granted under 5kmiles so far), you can barely squeeze 16 on the highway, and we turn of the computer around town.
(If you can go for the Duramax w/Allison get it)
Bob
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