With the 5.3 got about 14mph highway after the LS1 swap 18.5mph highway. 04 Avalanche w/3.73
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With the 5.3 got about 14mph highway after the LS1 swap 18.5mph highway. 04 Avalanche w/3.73
The turbo 408 with 80e averages better than 14 MPG with my stupid driving style. It would probably get better fuel mileage with some tweaking of the tune. The 408 got about the same fuel mileage when it was in the 93 truck with nitrous, except at the track where you could watch the gas gauge drop after each pass down the track. :)
15-16mpg in my truck @ 74mph, 12-13mpg in town. Tahoe 17-18mpg @ 75mph not bad for a vortec 350. :)
My rcsb 4.8 is 12-14 in town and 20-22 highway...i need 3.08 gears bad...
With my 5.3 and BDD cam in an ecsb eith no stall and 3.73's with 31.5" tall tires I average 16-18ish. If I drive conservatively I have seen as high as 20 after the cam. Before the cam I had seen as high as 22 under good driving conditions.
since i moved closer to work and when i do drive the yukon i tend to beat on it lol im getting about 12-13mpg in town. weve seen low-mid 20s on the hwy on a trip a few times but that was mid 70s temps extra air in tires stayed at 70mph all planets aligned perfectly ect ect lmao
about 6 in town and some where between 16-22 hwy depends on hills
im around 12-13 round town and 15 interstate running 75 mph. it does about 17 if i run 50-60. the 08 sierra gets about 20 with mixed driving
Stock 4.8 17city 19highway(it has trouble on the highway lots of downshifting on these hilly utah highways)
just ran a tank and got 20.2 mpg. I was taking it real easy I have a 3900 pound truck with 3.08 gears and i never touched the highway! I would like to take a highway run and see what I can get.