OIL Additive Importance

[Gary - K7GLD]

Interesting, what brand and weight of oil is it. Modern oils are suppose to be getting better. You may have proved that theory wrong.

As far as I'm concerned, that was well proved far more recently, in the EPA mandated "upgrade" from the CI-4+ lubes to the CJ stuff - complete with accompanying shorter service life and a rash of documented premature internal wear issues and failures.



Yeah, sure - for the vast majority of users, as CKelley1 pointed out earlier, they will never know the difference since they only keep their vehicles several years, and perhaps a 100K miles or so. But those who run their stuff a lot longer, and don't watch their lube schedules closely enough, using the same longer service intervals that worked well with the older stuff, it may well be another story.



Seems to me, the recent fast abandoning of the CI-4+ lubes in favor of the "new and improved" CJ stuff was purely mandated by the forced adoption of exhaust system devices that were not compatible with the proven wear protecting additives used in the CI-4+ formulas - formulas that themselves were relatively new to the market at the time - and the oil refiners were essentially forced to drop that product and then scramble to provide another that was quickly developed by elimination of the very compounds previously advertised and shown to superior, and replaced by others of less quality - a bandaid approach to a marriage of convenience.



How did it start?

How did all of this start? A few years back, the U. S. Environmental Protection Agency (EPA) decided that starting in the 2007 model year, strict new limits were going to be placed on the emissions of on-road diesel engines in heavy duty and pick-up applications. This would limit the amount of nitrogen oxide and particulate matter emitted by the exhaust pipe. The EPA determined that through a combination of engine redesign, ultra-low-sulfur diesel (ULSD) fuel and new engine oil technology, these new vehicles would cut harmful pollution by 95 percent.



The most important of these engine changes are the addition of exhaust after-treatment devices and increased exhaust gas recirculation (EGR) rates. Both of these changes demanded a dramatically different approach to formulating a diesel engine oil.



The exhaust after-treatment devices being used are "diesel particulate filters". These particulate filters remove soot from the exhaust allowing for much cleaner emissions. Collected particulate matter is cleared from the filter by burning it off at elevated operating temperatures. Older generations of diesel engine oils contained additives which can plug or damage particulate filters. The new CJ-4 engine oils have strict limits on sulfur, sulfated ash and phosphorus content. A plugged or damaged particulate filter is not only very expensive to clean or replace, it can cause severe drops in fuel economy due to increased back pressure.

"Adequate"? Possibly, for some - but an "improvement"?



Hardly likely - unless you work for the EPA... :-laf



Pointers?



Ultimate Motor Oil Thread or Why we hate CJ4/SM oils - Pelican Parts Technical BBS

from the competition cams website... .



Engine Break-In Oil Additive Case - 12 (12oz. ) Bottles

PART #159-12





DESCRIPTION:





COMP Cams® Engine Break-In Oil Additive



Time marches on . . . and generally that’s a good thing. But unfortunately, over time, some of the good stuff can get left behind. COMP Cams® Engine Break-In Oil Additive brings back the good stuff, delivering a specially engineered blend of extreme pressure break-in additives that have been removed from current off-the-shelf motor oils. Delivering added protection during the break-in process and beyond for all engine components, including the camshaft and lifters, COMP Cams® Engine Break-in Oil Additive is compatible with any petroleum, synthetic or blended motor oil.

Swepco Oil - IH ONLY NORTH



“BACKWARD COMPATIBILITY†IN NEW ENGINE OILS ? - MiniMania.com

 

[amsoilman]

Interesting, what brand and weight of oil is it. Modern oils are suppose to be getting better. You may have proved that theory wrong.

I am using the Amsoil brand (AME) 15W-40 CI-4 PLUS oil, and I do think it is a better quality oil than those made back in the 60's!



The latest report at 67,100 miles on the oil, shows ZINC at 1484 PPM, PHOSPHORUS at 1315 PPM, and CALCIUM at 4280 PPM. I have added a TOTAL of 3 Quarts of oil between 8,700 miles and 67,100 miles, which does add more of the additives. This has been done over the past 6 years.



wayne

 

[Grizzly]

Wayne, your report is very impressive, however I have to go with what Consumer Reports recommendations are on extended oil changes and I'm just not convinced that synthetics are any better then conventional oils.



Quote from Consumer Reports article; "We don't recommend leaving any oil, synthetic or regular, in an engine for 12,000 miles, because accumulating contaminants - solids, acids, fuel, and water - could eventually harm the engine. What's more, stretching the oil-change interval may void the warranty on most new cars". .