Jay33089
OBSessed
I drove the the truck today on its first long trip since the swap. With the 5.7 I would get approx. 300 miles out of a tank. Roughly 23 gallons. So 13.6 mpg on a road trip. I put roughly 23 gallons in before leaving this morning. I've driven 340 miles and still have a 1/4 tank left! So as of right now 14.8 mpg. On the highway. Gonna see how much further I can go to see the final number. Anyway, a bigger more powerful engine, and more mpg than before! That's a win to me any day!