Speedco, Speedco, Speedco! They will do your engine oil and analyze it if you want, change filters, lube it, service the generator oil and filters, all in an hour and cheaper than you can buy the oil and filters. If you think they have never seen a Cummins engine before you are hopelessly lost. Since Caterpillar went out of the truck engine business 5 years ago almost all trucks are Cummins. The recommended service intervals are a part of Speedco's business. I know they have worked on more Cummins engines than Cummins service centers just watching all the trucks while waiting for mine to be done.
I owned and operated class 8 trucks for 23 years and used Speedco exclusively as a good business decision. Never did they do anything wrong in millons of miles of service. How anyone would think that Speedco is new to Cummins, in a truck or motorcoach is bewidering. It makes money sense not only in cost but knowing it was done right and will extend the life of your investment.
