Many people try and clean sludge out by using 2 bottles of Auto-Rx. I have said over and over that your engine will continue to make sludge even after Auto-Rx cleaned it out. This is why you need to use a 3 ounce maintenace dose of Auto-Rx with every oil change so Auto-Rx will continue to liquify the new sludge driving it to the filter.
Sludge is made from a mechanical design in your cars engine. Synthetic Oil holds oil to metal trapping sludge(you don't want this featurer) Auto-Rx keeps your engine running and the sludge under control.
3 bottles of Auto-Rx is not a great expense. Please follow the application instuctions.
Frank, I think you need to do some testing with something like Mobil 1 and autorx before you dismiss it. I'm just curious if anyone has any suggestions on how we would go about gauging the effectiveness of using Autorx with synthetics. Jag's test at least showed there is a potential benefit from autorx with mobil 1. There is just so much benefit from using synthetic oils in general, maybe a little risk of sludge is acceptable, because worst case senerio is you can always do an autorx/dyno oil treatment if sludge appears while using synthetics. I know your just being thorough Frank because the best application for autorx is to use dyno oil, but it still may be beneficial to use it with synthetics too. Dyno's just don't offer the same protection as synthetics, but maybe it would even be beneficial for staunch synthetic users to break ranks every 50k miles or so and do a dyno/autorx treatment.
Auto-Rx can work with synthetic for initial cleaning phase for "Sludge Issues" that includes Mobil 1. It is the sludge problem alone that causes me to state don't use a true synthetic as it's complex additive package holds oil to metal. You don't want this effect when your goal is to remove engine damaging sludge from oil lubricated parts.
Why not use a group 111 oil for second cleaning & rinsing that will do nicely ?
if synthetic users could understand that sludge keeps being formed and the Auto-Rx Application keeps sludge flowing into the filter and that the end game is to keep there engine from extinction due to sludge. i am sure group 111 oils would be very acceptable.
ON ENGINE CLEANING APPLICATIONS AUTO-RX CAN WORK WELL WITH ANY SYNTHETIC.
