ODD Cummins oil pressure

[Rawze]

(09-10-2018 )Diesel_Pusher Wrote:  Was recently reading a Blog by SAE engineer 540RAT : Tech Facts No Myths...Motor Oil Engineering Test Data.
I spent about three hour on his site. Much, if not most, information
was about cars (small gas engines), but could be generally applied to large trucks.

The bit about oil additives was a eye opener

One was high levels of ZINC are not helpful and actually cause cam damage.

I wont be buying Royal Purple at a premium ever again.
A couple of the AmsOil products tested incredibly high in all categories.

Oil PSI is the resistance to flow, (New bearings). Lower PSI ( Thinner oil) with higher flow resulted in lower oil temps and less oil breakdown.

Sounds like a bunch of BullS$it off the internet-rambo sites. For the ISX, on engine oils that use ZDDP as one of the primary wear inhibitors, the optimum is in the range of 1150 - 1450 ppm. More is BAD,.. less is BAD!.

I am also NOT a fan of over-priced oils like the brand you mentioned though, Rotella-T works just fine for me and my engine had less wear in it than anyone else I have seen with more expensive oils.

Using one of the top-3 easily availiable brands like Rotella, Delo, and Delvac,... I have never seen ANYONE WHATSOEVER with an engine that simply got worn out DUE TO ENGINE OIL ITSELF faster than ANY of those more expensive brands --- EVER!!! --- OTHER THINGS GO WRONG, NOT EXCESS WEAR FROM OIL ITSELF are the cause of every engine I have ever seen to have to be pulled apart and in-framed!.

* Excess soot problems -- carbon packing and wiped out cams or bearings.
* Not changing oil often enough -- Wiped out cams / excess soot problems.
* Not changing oil often enough and replacing it with a bypass oil filtration + synthetic + oil sampling -- Also wipes out the cams BECAUSE YOU DID NOT CHANGE THE OIL OFTEN ENOUGH.

* Not keeping after your enigne's EGR system to keep it from making excess soot or blocking up the DPF and exhaust -- Wiped out cams / carbon packing!.

* Driving a higher HP engine mostly BELOW 1500rpm its whole life, especially when climbing hills like that -- PREMATURE LINER FRETTING ISSUES.

* Bad delete programming -- All kinds of problems and pre-mature failures.

** even if you driving it well,.. maintain it and baby it during its whole life, you change oil based on fuel mileage + everything else you can do to extend its life --- EVENTUALLY SOMETHING IN THE HEAD WEARS OUT that has nothing whatsoever to do with your engine oil like injector cups, valve seats, etc.etc.etc. will get it --- long before you EVER have to start worrying about "which brand of oil is making less wear in the next 10 million miles. -- BECAUSE YOU AREN'T GOING TO MAKE IT THAT FAR WITHOUT A REBUILD OF THE ENGINE FOR ONE OF THE REASONS MENTIONED ABOVE --- EVER!


I have no idea why people stress and over-speculate about their engine oil like it is the cause of their problems. -- that should be the LEAST of someone's concerns,... the soot monster, keeping after the maint. on your truck that 90% of truck owners neglect until it is too late and FUEL MILEAGE MOST OF ALL should be the places you focus so much attention to.... Not being obsessed about your engine oil. That is mostly a waste of time.

-- Find something that simply works, easily available, does not involve a higher unnecessary cost, ... move on to more important things!.