My early 90's Toyota pickup has the 22RE 4 banger/shaker in it. Pushing up towards the 350K mile range right now and did 10w-30 conventional for 4K (roughly) OCI its whole life. Engine only had some varnish last time it was open and nothing else gummed up.
I recently switched to a M1 HM 10w-40 FS and plan on doing longer OCI. Maybe 6K on the first OCI, then on the next one using same oil do an UOA at 6K and see what's going on.
Something about these 22RE motors is that it's hard to find any owners online who don't change their oil every 2-3K. Toyota service interval is for up to 7.5K miles on easy highway driving, and only down to 3.5K for the most extreme conditions. As to why guys using their rigs for normal road use change the oil at 2-3K is beyond me, unless they really enjoy the change process that much? LOL
Does anyone here have some info or UOA of people extending their OCI with FS in the early 90's Toyota truck engines? I think with doing mostly highway miles, I could get it to 8K pretty easily? I don't have an ideal place to work on my vehicles, so doing the OCI less often is my main motivator.
I recently switched to a M1 HM 10w-40 FS and plan on doing longer OCI. Maybe 6K on the first OCI, then on the next one using same oil do an UOA at 6K and see what's going on.
Something about these 22RE motors is that it's hard to find any owners online who don't change their oil every 2-3K. Toyota service interval is for up to 7.5K miles on easy highway driving, and only down to 3.5K for the most extreme conditions. As to why guys using their rigs for normal road use change the oil at 2-3K is beyond me, unless they really enjoy the change process that much? LOL
Does anyone here have some info or UOA of people extending their OCI with FS in the early 90's Toyota truck engines? I think with doing mostly highway miles, I could get it to 8K pretty easily? I don't have an ideal place to work on my vehicles, so doing the OCI less often is my main motivator.