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I know this topic has been addressed numerous times here, but I have to ask. What is the latest and greatest oil you are using in your long in the tooth (2019 6.7 with just under 100k miles) Super Duty?
If I had a 2019 6.7, I'd run Rotella T6 that I'd buy at Walmart. I still have one diesel and I go between T6 and Delvac, which ever one is on sale at the time.
With the ongoing supply chain issues that we face, sometimes you don't get much of a choice . Stay somewhat flexible, like maybe have a list of brands you will use, and plan ahead a little.
With the ongoing supply chain issues that we face, sometimes you don't get much of a choice . Stay somewhat flexible, like maybe have a list of brands you will use, and plan ahead a little.
This is your best bet. I had three oils on my list, never found my first choice, ran my second choice for a few changes, then it became scarce, on my third choice but all are very good oils so I am not fixated one one as "the best". Honestly, I do not think it matters much as long as you use an oil that meets the specs and you change it on time. Oil related engine failures are almost non existent these days.
So... you know it's been addressed numerous times, which I take as you've found the other threads, yet you still felt the need to start another thread and start the great oil debate again...
If I had a 2019 6.7, I'd run Rotella T6 that I'd buy at Walmart. I still have one diesel and I go between T6 and Delvac, which ever one is on sale at the time.