Originally Posted by coondog
Originally Posted by dnewton3
lurk here long or just getting started?
It's OK to want to run a syn. But FWIW if your OFCI is going to be anything along the lines of normal, then you don't need to spend that kind of money. The Cummins doesn't need anything special to run for hundreds of thousands of miles.
Originally Posted by dnewton3
lurk here long or just getting started?
It's OK to want to run a syn. But FWIW if your OFCI is going to be anything along the lines of normal, then you don't need to spend that kind of money. The Cummins doesn't need anything special to run for hundreds of thousands of miles.
Its not a daily driver so it won't get oil changes often so why not put something good in it since I plan on keeping it around awhile.
Because conventional over synthetic won't matter for longevity of the engine. They provide the same amount of protection either way. The "more protection" theory is a long disproven one unless you plan on running pretty long OCI's, but if spending more coin makes you feel better, by all means. It's your money. If it were me, and I do this on my current diesel (see my signature), I would use conventional Supertech from Walmart or Traveller form Tractor Supply and not look back. I have a UOA on here to prove the efficacy of "cheaper" oil under severe duty conditions. I have been running Walmart and Tractor Supply conventional for years now with very very good results and my pocketbook and brain thank me.
The thing is, this question never fails to open up a box of opinions that have been given time and time again. Bottom line, do what makes you feel good if $$ is no object. Most of us will go that route anyways. I used to do Amsoil with bypass filtration and the whole nine yards. Thank God I got off that bandwagon and put down the Kool-Aid. Sold the bypass, saved myself a good amount of money going conventional Delvac, and put another 100k on that truck before selling it....all on conventional diesel rated oil. Use oil rated for your application, change at 5k, and sleep well. The Cummins is easy peasy on oil. Any one will do.
On edit: here ya go...and keep in mind the 7.3 is harder on oil than the Cummins will ever be
https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5078675/1