Hi just got this truck last week, had a diesel and used the Edge Evolution on it worked great. They don't do gas.
I'm not looking to race this monster, just use it and tow heavy loads long distance every 3-4 weeks like 3,000 miles.
My first issue is gas mileage, can that be improved-if so about how much?
What else is out of whack on the factory settings?
Do I need to purchase this or are there shops that can do it.