33's and 12.5 MPG..What are you guys getting??

[jaysonsimmons]

What engines guys? I am running 33" tires with an 8.1 and get about 12 on the HWY

 

[livingez_123]

Don't rely on the DIC, is ball park at best. Hand calculated is the only way to be correct.
With my Denali running 275-55-20, I avg 12.5, on a long Hwy run, I can avg 19-20.

 

[Xypher]

Wife's bone stock '02 Tahoe gets 15mpg consistently. 5.3 liter and 265/70/r16 tires. That's a mix of city and highway.