- Sep 20, 2014
- Seattle-ish, WA
I am trying to school myself on ester-based oil additives/cleaners, which is what I gather Auto-RX is primarily. In my thinking (which could be wrong), the idea of a leave-in cleaner is very attractive compared to harsher instant flush compounds. Are there other similar products out there? Would using a high % ester-based oil achieve the same thing over time? Or are there certain types of esters that provide the solvency, and those are not what is found in typical engine oil? I'm sure there must be old discussions on this subject, but I've been unable to get a clear answer or find a relevant thread.