45lpv
Observer
A gallon of DEF per 500 miles wow. I guess it is normal for late model diesels but I just never knew. How big is he tank?
I think the DEF tank is about 2.5 gallons. We purchased two PEAK brand 2.5 gallon containers from a local O'Reilly auto parts in Bend (on sale - 2 for $25). I based the estimated usage on the fact that we started out with a mostly full DEF tank when we left, and finished the trip with all DEF consumed, and a mostly full container on the truck. Total mileage was probably closer to 2800 with the visit to Mount Bachelor and stop in Asheville.
jC