2007 Chevy 2500HD Crew mileage
Hi every one. I just completed a 567 mile round trip and the mileage was around 7.4 mpg. Empty around town or highway, im seeing 11 mpg. I'm starting to wonder if new plugs and wires are in...
Forum Discussion
newman fulltimer wrote:
if you did not use platnium plugs it will run like **** and burn the cap out fast
Honestly, I'm guessing these are factory plugs in my engine. I bought it with just under 100k, now the odometer is reading 111k. I've never put plugs in it.
I've got a buddy with a 2004 2500 Chevy crew (not "HD" badged) that swears he gets 15 unloaded, and 11 when towing a flatbed with race car... probably under 4500# for a trailer.
He also sent his computer out to be tuned, and the tuners set it up for just 93 octane and a better "tow/haul" mode.
The computer reprogram wasn't cheap, though.
