Originally Posted by CT8
I have worked on lots of Mitsubishi engines there were in forklifts .there are the exact same as the car engines . These engines were over heated until they quit running due to the valve seats falling out. I never have seen what the video represents. The videos oil has been run for too long. Like the syn oil ads that show sludged up engines from mineral oils . Working fleet repairs I have never seen a sludged up engine that has had proper servicing for its operation.
I agree, it was in there too long about 1year and 7 months, plus the fact that it over heated.It's my brothers truck, it leaks oil probably burns some too to the tune of a quart a month so he thinks because he keeps adding oil it doesn't need changing.Maybe he'll change his mind when I show him his cut open filter.
Anyways I put in some PP5w30 HM and a Fram Ultra, the oil probably turned black by the time he got out of my driveway.