Rotella on sale at Sam's Club
Rotella 15w40 now $65 a case of 6 gallons. Case of 3 gallons $40.
Forum Discussion
FishOnOne wrote:Ron3rd wrote:SidecarFlip wrote:Ron3rd wrote:
Which Rotella? T6?
OP stated 15-40. That isn't T6. T6 is 5-40. 15-40 is conventional not synthetic and Menards is cheaper on both.
In that case, the best deal I've found is the DELO 400 (dino oil) at Costco. 3 gallons is normally $38.95 but it goes on sale about 3 times a year for $29.95 for 3 gallons. 10 bucks a jug is cheapest I've found.
When it comes to API CK4 oils I would pass on the Delo and give the nod to the Rotella.
I have used Delo 400 15W-40 in my Cummins engines for many years with no problems, both long haul and local driving. I have talked to diesel owners that swear by Valvoline and swear at both Rotella and Delo. As with so many things, it is personal preference mixed with a little anecdotal evidence.
