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Generally speaking, I don't think that is a whole lot? There can be lots of variables like the frequency of oil changes, coolant in the oil, overheating, & so on to consider. Properly maintained diesels can run along time.On average I do 130 engine hours per year. Its total hours is 1550hours now. This isn't alot ...is it?
:laugher well, goodness. That's a problem. Would have been useful to know.......within 2 years I choke up the U Mixing Elbow with enough coke & rust to stop the engine running. Got engine fixed in workshop. Shouldn't have to actually. As I learn more of diesel, I guess I got careless/complacence. 3 years back discover only about 1 litre oil in engine after a 500nm passage........
gotchaBack then, I was nursing a brand new engine initially. Running on low rpm mostly. Didn't know diesel engine loves S&M that much.
I experienced that exact situation with my daughter's VW turbo diesel. After about 60,000 miles when doing a long hard climb the oil pressure would drop from about 60 lbs to about 20 lbs at speed. at idle it would go down to about 5 lbs, triggering the red light. It never rattled or knocked, just scared her. Tried heavier oil, no change.you can learn a lot from how tired an engine is by simply looking at oil pressure at startup and then how it lowers when warmed up...if its drastically lower in normal range again you can experiment with stp, thicker grade oil and the like as it will tighten up tolerances a bit and thats that
a good way to prolong the rebuild...
If you could pull 3,300 RPM with all of these props perhaps none of them had enough pitch or diameter to indicate you were/are "over propped"? The only way I can think of telling how much pitch/diameter is too much is to find a prop that will not let the engine pull to its maximum RPM ?Prop I used are: stock 2RH 15"Dx10"P, CSP 3RH 14"Dx9"P, & 7"P, & 6"P, KiwiP 3RH 16"Dx20deg, & 18deg.
I've tried SAE40 and SAE15W40. I don't find any difference. I've tried adding STP Oil Treatment (Silicone base). It helps raise max rpm by 100-200rpm.