I have had my 2014 Ford Raptor with the Boss 6.2 since approx 68k miles. I ran Mobil 1 5w-20 when I first got it about 7 years ago but noticed I got considerably worse MPG as well as the engine idle wasn't as smooth so I swapped to Pennzoil Platinum 5w-20 which I could find more easily in the area I lived in at the time. While running Pennzoil Platinum I got about the same MPG and idle was smoother. I moved a handful of years ago and took the plunge to Amsoil 5w-20. I ran the motorcraft oil filter until I swapped to Amsoil. Now I run their oil filter. Overall no complaints about the oil or filter. Did an UOA earlier this year and seemed to do well. Can share that here if that would be of any help. I have done some reading on here, some raptor forums, ford forums, etc. Even talked to a few of the shops like Foutz who were heavily involved with the gen 1 Raptor when it was being designed. Ford at some point changed the oil from 5w-20 to 5w-30 for SD F250's with the 6.2. The only differences between the Raptor 6.2 and SD 6.2 is the cams and tuning from my understanding. The Raptor has slightly more aggressive cams and tune. This is my daily driver / weekend warrior. Building on the truck since last year to take it to Baja with one of the groups that make multiple runs a year. I now have approx 150k miles and no signs of issues. I have been thinking about swapping to 5w-30 in the truck but was curious if changing with so many miles now would matter? I figure having same oil for both trucks in my fleet would help too. I run a 5k mile OCI on all my vehicles.
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