Great MPG, But Using Oil

[RadarRider]

This summer has been my all-time best for MPGs, & I'm floored @ the money I've been saving @ the pump. However, there is one thing concerning me: oil consumption. Lately, my wife & I have been driving to New Hampshire for some summer fun, & that's when Heavy get's her absolute best MPGs. The rides range anywhere from 190 to about 300+mi round trip & I've been getting around 18.4 to 19.6mpg.


I take my truck usually on rainy days or days I get up too late for work(been taking the motorcycle all the other days) & it's only about 15mi to work(1 way) & sometimes I'll run a few short errands afterward. When I check the oil before long trips, it'll be 4-6qts. low. There isn't any oil in the engine valley, no puddles under the truck, no traces of oil anywhere else, & she doesn't smoke @ all. What gives? Is there a problem I should be looking for that's far worse?

[Ford_truck09]

thats what kind of milage i get. i did a 290 mile round trip, truck got me just about 19 avg. on my way home i had about 1000lbs of payload in the bed of the pickup truck. i thought for sure that was gonna kill my milage, but it did great. got to love DIESEL. There is no oil leaks, how about oil marks like its pushing out under high preassure. there would be oil all over the bottom over your truck! wish you luck man!

[Dietoremain]

how many miles is the oil being consumed in? injector orings like to eat oil...

[kingranch250]

not to hijack this but we got a truck at the shop doing the same thing guy rode to mnts last weekend n about 130 miles or so round trip n used little over a gallon of oil and leaks no were and does not smoke at all, i just put stage one's injectors in this trucks 4 months ago n feel sure its not the injector o rings.. also has a wicked wheels on it, took it off and checked turbo seals, cause that can cause it as well and nothing.. we going to start back on it tuesday after the holiday n i let you know if we fig out wat it is on this truck, might help you out in your situation.