[boraz]

Just wanted to point out that the 4.8L V8 gets worse gas mileage than the 5.3L V8 not by much but it is worse. The new DI ecotec 5.3L is much more powerful is gets significantly better gas mileage especially with the 8-speed than the previous vortec with a sizable increase in power.

https://www.youtube.com/watch?v=VTF1Vfl0SPo

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