ok i do have to appologize on this i was not looking at the gallon prices on my jobber sheets i was looking at 2.5 gallon prices. and as far as the gear oils go they are 2 bucks a quart higher than mobil 1 at dealer costs. motor oils are still much higher than rotella t sythetics rotella at 19.00 a gallon retail vs 34.90 retail for the excat same results. plus ive ran rotella in my truck for 175000 miles and when i pulled it down at 160000 to rebuild everything inside the motor looked just like brang new. you could have ate off the inside of that motor. so its what i will stick with.