Originally Posted By: TiredTrucker
I have no problem with using the oil brand recommendation by the OEM of the engine, but I really don't think it is that big of an issue. Case in point.... The only brand of oil that Cummins lists in anything I got from them with the purchase of my ISX or previous N-14 engines and brochures on their racks at the Cummins shops is Valvoline. Now, the trucking industry primarily uses Rotella, Delvac, and Delo. Yet, I have barely ever heard of Cummins denying any claim based on use of these other brands of oils or even asking the question. When I or anyone I know have stated to Cummins the brand we choose, it is a big yawn at the Cummins OEM shops.
Cummins cannot say you must use Brand X of oil. Cummins can say you must use spec Y or Z of oil.
What specs did those brochures say the oil must meet?
I have no problem with using the oil brand recommendation by the OEM of the engine, but I really don't think it is that big of an issue. Case in point.... The only brand of oil that Cummins lists in anything I got from them with the purchase of my ISX or previous N-14 engines and brochures on their racks at the Cummins shops is Valvoline. Now, the trucking industry primarily uses Rotella, Delvac, and Delo. Yet, I have barely ever heard of Cummins denying any claim based on use of these other brands of oils or even asking the question. When I or anyone I know have stated to Cummins the brand we choose, it is a big yawn at the Cummins OEM shops.
Cummins cannot say you must use Brand X of oil. Cummins can say you must use spec Y or Z of oil.
What specs did those brochures say the oil must meet?