diesel for long engine life mobil delvac apick4 heavy duty bande formula oil that works as hard as you don't forget carquest heavy duty filters by baldwin shell rotella shell rotella shell rotella tan engine engine oil shell rotella t4 conventional heavy duty motor oil gallon shell rotella t4 conventional heavy duty motor oil 2.5-gallon shell rotella t4 conventional heavy duty motor oil shell rotella shell rotella shell rotella engine engine oil shell rotella t5 synthetic blend heavy duty motor oil gallon shell rotella t5 synthetic blend heavy duty motor oil 2.5-gallon shell rotella t6 full synthetic heavy duty motor oil gallon