Rebuild and In-frame mile for a Detroit S60

And there is no particular answer.

It all depends on if the engine was abused. taken care of. What were the service intervals....

 

I agree with REDD. Too many variables. I change my oil every 12,000 to 15,000 miles. I hope mine lasts a long time.
Just to give you a number. I would say a lot of people will say 750,000 miles is in the neighbor hood of the time frame for an over haul.

 

I'm gonna guess the slippery kind that starts off as golden brown & turns black quickly!

 

Shell Rotella 15w40

 

11.1 ser 60 det. 1.3 mil miles. no inframe yet. use mobile or rotella. wichever is on sale. still average over 6 m.p.g. changed oil every 10,000 since I bought truck in 99' with 400,000 mi on it. every once in a great while, I go to 12,000 miles on oil change, but no more,

 

Rule of thumb is to at least replace the bull gear every million miles. Usually at some point in time you will at least need a head gasket. If it is around 10 years or older, more that a million you are in the ball park.

 

Yes there is synthetic oil for trucks. One thing I'm currently looking at & researching is the gulf coast filtration system.