Join Date: Apr 2006
Location: Sand Gap, KY
Thanked 6,002 Times in 3,252 Posts
iTrader Score: 28 reviews
You can't go by time for DEF usage, miles driven and type of use and fuel economy are what you have to look at for comparison.
The size of the jugs come into play, as well.
Throwing in some more numbers into the mix.....
My last DEF fill was 8.978 gallons. Fuel consumed was 345.909 gallons. Miles traveled was 3,615. The DEF ratio comes in at 2.5954%. Average miles per gallon of DEF was 402.65 mpg. Averages miles per gallon on #2 was 10.451.
2018 RAM 4500 Chassis Tradesman Crew Cab 60Ē C/A 4WD, 6.7L Cummins, AISIN AS69RC Transmission, 4.10 Axle Ratio, Chrome Appearance Group, Keyless Entry, Fog Lamps, Chrome Tubular Steps, 52+22 gallon fuel tanks, 5.0 Radio, Single Disc CD Player, 225/70R19.5 Continental HDRís, Aluminum Wheels, Parkview Backup Camera, Trailer Brake Controller. Equipped with a CM SK Series flatbed w/B&W Turnover Ball. Purchased new April 23, 2018. Currently : 176,194 miles and 3,098 hours as of October 26th, 2019 (Average Miles Per Hour = 56.9)