i have a camed ls1 and get 16 city, 25+ hwy. not sure exactly but atleast 25, and i think it was closer to 28/29. and i have 4.10s still only 1600rpm or so at 70. 2100@90mph

 

those kinda rpms dont sound good for the engine, but if it works, it works.

i ecpect this combo to get less than LS1/t56 4th gens.

 

I would hope so. Atleast 26 with the 6 speed. Could be in part to the big wheels.

My SS gets 29-30mpg if I keep my throttle consistent and keep on the highway. I think the LS7 Z06 vette was even rated ~26-27mpg highway.

 

The Z06 gets 14 city, 24 highway, and that car weighs 3100 lbs.

I think that the Camaro will be rated 24 or 25 on the highway. Scott has said that a given driving style should net better highway fuel economy on the 5th gen than on the 4th. Given the added weight, I can only assume that this is due to gearing and engine improvements.

 

I dont know..I think that aerodynamics are going to play some role here.. the 4th gen has the laid back windshield, whereas the 5th gen is more like the older generations.

I got 28-29 in my '01 SS in 6th cruising at 75-80. My buddy has an '06 ZO6 and got 27-28 on his last road trip..

If I had to guess? 26-28..