I think you guys put too much thought into oil. IMOP anyhow. This is a diesel truck engine(not a super tight clearance 9000rpm race engine). Keeping the oil level full and not letting get too low is the key to long engine life.
What filter, oil brand etc is just getting carried away. Change it often and use the correct grade for your temperature. Too me thats all that matters.
Oil studies are good to know, cause if the no name brand is the same filter quality ,why pay for name brand.
Also A thing to ponder is, what was your PO like on preventative maintenance? These vehicles are between 15-20 yrs old. So how is buying the best oil,filters going to extend the life of these engines?
You make some very good points BB.
Especially about PO maintaince.
The best fluids in the world will not save an engine that is half beat.
I do like the idea of synthetic's, espcially for burn off temps. But they do cost alot more. But I am pretty anal with cool down times.
I am starting to wonder if running snythetics are worth the extra costs?
I never did run them to 10,000KM which would offset the cost over running to 5000KM's. Also if you run extended intervals, you only use one filter, not two. But then you are going to want a better (read: more expensive) filter.
I usually change my oil well before that (5K for sure on Dino).
A donaldson filter is cheap ($6) and high quality.
I think I will run it on dino rotella from now on.
With my 1HD-T I was more anal.
Rebuild cost are alot more that a 13BT, and the oil filter was side mounted so it drained back. My 13T does not.
Anyways, your right.
Sorry for rambling on.
The biggest difference (80-90%) is ust regualar changes.
I am a very firm beliver in that.
Cheers,
Nick