Not sure the exact numbers , but my first day of the trip I went from campbell river to calgary , alberta , which was 1472 KM , and I used 3 tanks of gas , my cell is 19 gallons.This was at high speeds , average of 100 KM/HR and going up and down steep hills through the rockies.I guess first step would be to convert the KM to miles , then figure out the miles to the gallon.It wasn't as bad as I thought it was going to be , I expected to go through a minimum of 4 tanks to get to calgary.The power with the 3.4 is great <img src="/forums/images/graemlins/kewl.gif" alt="" />

1996 Jeep Grand Cherokee 5.2 with mods.Hughes Air gap intake , 52MM TB , ford injectors, 2 3/4" lift, Doug Thorley headers , HID headlights with LED , HID fog lights , glow gauges , a few others