Lynnmor wrote:
brooks379 wrote:
I have used Shell Rotella oils for 40 years in all my semi trucks ....GREAT OIL !!! I know because I had to pay for any motor rebuilds and I never had one go down due to oil. Wore a bunch of trucks out by putting over a million hard miles on them.....infame them, fill them up with Rotella and hit the road. I use full syn. oil in my 6.7 does Ford even sell a full syn. oil ? Rotella tried and true !!!
You need to understand that things have changed. With the beneficial anti-wear additives removed, the Rotella has not passed the Ford testing. Rotella no longer tried and true. Suggesting the use of a product that you know is faulty is not something I would do. Yes, I have used T6 and when my supply runs out it is time to find something that passed the tests.
Ford does indeed sell a full synthetic diesel oil.