Folks-
I use my 1997 4 door, one ton 4WD 7.3L PS to pull a summer use 24’ toy hauler. I bought this truck with three miles on the odometer (now at 153k). She has been overly maintained/babied (fluids, filters, oil, gear lube, grease, etc.). I currently use Rotella T6 5-40 and in the past, my OCI was 5-7k. The truck started its life on Rotella Dino 15-40 (at 3k OCI’s) but with Montana winters she struggled, hence the 5-40. The truck runs well on 5-40 and does not/never has used a drop of oil (no leaks).
My concern, hence this post, is I now put about 3-500 miles per summer on her, what should my OIC be? Will this oil time out? Am I making a mistake leaving low-mile oil the crankcase for multiple years?
The truck pulls/brakes a fairly heavy load up and down a demanding Wyoming grade once a year with the trailer. Am I wrong not to do a yearly oil change at 500 miles? It seems a bit overkill? I am now thinking 3k? My Shell jobber laughs and says I am his best customer ...
Admittedly I anticipate the answer here will be to do an OA and see. And that I should. I am new here, and will continue to scour the site for related posts/information.
I had a bit of down time and pause over the Holiday and thought I’d ask those in the know…
Thoughts?
Much appreciated.
I use my 1997 4 door, one ton 4WD 7.3L PS to pull a summer use 24’ toy hauler. I bought this truck with three miles on the odometer (now at 153k). She has been overly maintained/babied (fluids, filters, oil, gear lube, grease, etc.). I currently use Rotella T6 5-40 and in the past, my OCI was 5-7k. The truck started its life on Rotella Dino 15-40 (at 3k OCI’s) but with Montana winters she struggled, hence the 5-40. The truck runs well on 5-40 and does not/never has used a drop of oil (no leaks).
My concern, hence this post, is I now put about 3-500 miles per summer on her, what should my OIC be? Will this oil time out? Am I making a mistake leaving low-mile oil the crankcase for multiple years?
The truck pulls/brakes a fairly heavy load up and down a demanding Wyoming grade once a year with the trailer. Am I wrong not to do a yearly oil change at 500 miles? It seems a bit overkill? I am now thinking 3k? My Shell jobber laughs and says I am his best customer ...
Admittedly I anticipate the answer here will be to do an OA and see. And that I should. I am new here, and will continue to scour the site for related posts/information.
I had a bit of down time and pause over the Holiday and thought I’d ask those in the know…
Thoughts?
Much appreciated.