Hey all, like all of us here I love my 03 Tahoe and the versatility it provides me and my family. I have no intentions on trading it in for a more fuel efficient vehicle that won't serve my family the way my hoe does. However I am trying to get the most out of it I can...So far I have switched out the spark plugs to the lsg brisk HALO version, upgraded to the True Flow SAI, and got a performance tune. All of this and I haven't seen much in the way of an increase in efficiency...decent amount in performance though . I know I live in Jersey and they do this whole adding ethanol in the winter months, but I was hoping for a little more from the mods. I usually purchase regular (87 octane) fuel from a non-name brand station and am pretty good on tire inflation and routine maintenance (oil changes and all). I was wondering if anyone had any ideas to help me squeeze a littel more efficiency out of this 5000 lb rolling air brake.
5.3L V8
4x4
44500 bought used in August this year now with 46000 miles
Travel is usually local city (approx 90% city 10% highway)
5.3L V8
4x4
44500 bought used in August this year now with 46000 miles
Travel is usually local city (approx 90% city 10% highway)
Last edited: