I agree with some of what you say but not all. A virgin oil analysis of an oil sample with the cleaning dose shows only a miniscule varience in TAN(total acid number). After all esters are slightly acidic in nature. The reason we sometimes see TAN impacted while running the cleaning dose, is from the contaminants that have been dissolved and are now suspended in the host oil brew. Oxidized oil deposits are acidic in nature. Although the cleaning esters of ARX are slightly acidic in nature, they are designed to be corrosion inhibitors as well. The minimal effect on TAN due to ARX is a non issue. The greater effect of TAN from cleansing acidic deposits is proof positive that ARX is working.
All,
Used oil analysis of many oils run with the cleaning dose rate of Auto-Rx have shown that none of the host oils charactewristic are changed physically, nor chemically. Viscocity and indexing are unaltered. The additive packages are still present in the appropriate levels seemingly unaltered by the small dilution of Auto-Rx in the oil. So the only reason I can see that folks want to call it an additive is that it gets dumped into the crankcase through a valve cover. If thats the definition then I would say that the motor oil itself is an additive.
The product ARX is a proprietary blend of three ester groups. One is fatty ester, lanolin type, that is the base of ARX. Raw material is derived from the washing of sheep hair. This unique ester has very good detergent properties and is reponsible for most of the cleaning of engine deposits that motor oil detergents can't clean. A second ester group is an aliphatic ester, which helps in the oil film formation. Esters of this group make up the base of many aviation oils. They prevent dry spots or fish eyes in the oil film formation. This is obviously important while flying many thousand feet above the ground. It is also vital during the cleansing of deposits in your ground level motor. The other ester group is a polyol ester. Although is primarily used as a thinning agent of the ARX blend, improving pour point, they are biodegadeable eco friendly extreme pressue agents. By green I mean cholorine free, phoshate free, boron free, etc.
I like to think of ARX as relif pitcher in baseball. When the starting motor oil has failed due to errors such as ecessive length of oil changes, you have got to go to the bullpen. The starting motor oil wears down over the life of an oil change, at the pesty price of an internal motor problem, why not go to the bullpen, ARX maintenance dose. If you have seal leaks and can not justify a horendous labor charge to swap out a cheap seal, then go to the closer, ARX.
Every motor crankcase can hold and extra 3-12 fluid ounces without overfilling, provided that it wasn't overfilled to start with. So why not make use of this idle space to protect the vehicle investment and keep it operating at full strength over its usefull life. Its like adding good cholesteral to the blood stream to remove bad cholesteral, and the oil filter acts like your liver. May be this is why it is called Auto-Rx. A prescription for a healthy motor.
Rick 20
Why would anyone want to use anything else?
Frank