Gas Mileage
Thread Starter
Joined: Jul 2010
Posts: 833
Likes: 17
From: The Jersey Shore
Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
Gas Mileage
How much better is the gas mileage in the V6 options 2.8 and 3.1 vs the 8 cylinder motors? Is it that much different?
Supreme Member
Joined: Oct 2004
Posts: 1,056
Likes: 310
From: Missouri
Car: 1985 Z28
Engine: 305 LG4
Transmission: T5
Axle/Gears: 3.42
Re: Gas Mileage
My first Camaro had a 2.8 with automatic (engine rebuilt and ran perfect). It got low 20's on the highway. My rebuilt 305 with manual gets 22-23 highway, so about the same mileage but more power.
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