5000 Mile Service Intervals
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From: Southern IL
Originally Posted by 4x4not
It is weird... my service schedule book in my truck has 3750/7500, but the manual itself lists 7500/15000. Stupid. Either way, I am on the 7500 mile schedule right now and it will probably stay that way. I simply don't trust oil out to 15,000 miles, but 3750 is too soon for an engine like the Cummins.
exactly what I mean...Guess I'll run 7500...I thought 7500 was long, but if cummins will warranty out to 15000, fine by me...
I'll prolly change oil around 3000, then @ 7500, then follow 7500 schedule from then on...Right now I've a whopping 219 miles on this thing
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4x4not
my '03 service schedule at first glance shows a 3750 service schedule but if you look at the symbols [ a cross and a diamond symbol ] shows 7500/15000 oil change for all HO engines. My truck is stock and I use the 15000 schedule when not towing and 7500 towing a 11200 lb 5er. Truck has 52k+ miles. These are Cummins recommendations and they are the engine experts...........JIM
my '03 service schedule at first glance shows a 3750 service schedule but if you look at the symbols [ a cross and a diamond symbol ] shows 7500/15000 oil change for all HO engines. My truck is stock and I use the 15000 schedule when not towing and 7500 towing a 11200 lb 5er. Truck has 52k+ miles. These are Cummins recommendations and they are the engine experts...........JIM
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