Originally Posted By: tackleberry625
If ARX dissolves deposits then it does have solvent ability.
It is not a solvent in the sense MMO and other hydrocarbon solvents are. ARX is a non hydrocarbon product, composed of organic esters, and it does not affect motor oil at all.
Comparing MMO to ARX is like comparing paint thinner to natural lanolin based saddle soap. Both will clean stuff off your saddle. The comparison stops right there though.
ARX actually clings to and embeds itself into motor oil deposits and carbon buildup. It then very slowly liquefies and emulsifies [encapsulates] deposits, to safely suspend them without blending it into your oil and changing it into something else. Your oil therefor remains unchanged, exactly as it is designed to be, for optimal lubrication cushioning and cooling. The emulsified [encapsulated and chemically isolated] deposits are then carried safely to your oil filter for removal.
That is far safer way to remove such crud. It doesn't just break chemical bonds responsible for surface adhesion as MMO and such do, breaking off big chunks which can and often do clog oil passages, and then just blend that soup of semi dissolved deposits and solvent with your oil, changing it into something else, thus radically diminishing it's ability to lubricate cushion and cool moving parts.
Lets face it. Just because something has been used for a very long time does not mean it is the best way to do things. Piston powered aircraft were the only thing in use for a long time, and they too were very reliable also. You can be sure that when jet engines became available, there were those who rejected that new tech also, and they used the same logic you used. Comparing MMO to ARX is like comparing a biplane to modern jet aircraft. Yes they both fly. Once again though the comparison stops right there.