What MPG improvements you guys are seeing in L92's with truck cams and headers? So far, all I have is a tune, and the gas is absolutely killing me. 13 on the highway at best, and about 11 in town..... and it's a short wheel base Yukon.

 

My L92 got 20mpg highway on a 5000 mile road trip last year. Only mods at that point was a tune.

City? Ehhh, 11 - 13mpg.

I just put on long tube headers but haven't received my wideband to tune with so no reliable data for you there.

 

stock ride height?

 

Jeez that's bad.

My old boss had a 2010ish short Escalade with the 6.2 AWD and got 16-17 freeway with the way he drove. Pedal to the metal and doing 80mph instead of the 65-70mph speed limits.

 

I have a 13 Avalanche with an LS3 with a small cam and longtubes and I get 18-19MPG freeway and 14-15 around town...something is off if you are getting 11mpg

 

Yup, 08 Yukon Denali.

My highway mileage was at an average of 85mph

 

I'm going with TSP headers and the 216/218 VVT cam. My theory is more MPG from more low-end HP and less downshifting.

Right now all i have are an Airaid and a tune.

 

Mine is leveled out for trails with a rack on top, but none of that made a difference in MPG.

 

I'm also thinking the valves are carboned all to ****. I might do a top-end cleaning and see if that helps.

 

6.2/small cam/33's/tune

11.9 MPG