Hi all, I have a 99 corolla, 105000 miles. There has not been much discussion which ATF to use with auto-rx. I currently have Valvoline max life (High Mileage) in my transmission. I put it in this summer (~1000 miles ago) and also changed the filter. The transmission is running fine and I would like it to run fine in the future too. Assuming that a HM is a no go (similar to motor oil) should I change it out or can I add auto-rx to the current sump. I usually change my ATF at home by draining the oil and putting fresh one in. Did it 4 times over a short period to effectively change the entire ATF this summer. This comes out cheaper than doing a full flush at the shop. I am currently using Auto-rx in my engine. Mobil Clean 5000 conventional oil and Purolator pure one. Mobil oil was cheaper than the store brand. I hope it will not impede auto-rx's performance.
Thanks
-- Edited by notapennymore on Monday 6th of December 2010 12:45:31 PM
This the first time I recall HM being used in an auto with Auto-Rx. Auto's are much cleaner than engines, hence the shorter treatment period and no rinsing. The HM oil prohibition is more targeted toward those seeking remedy for seal issues. Not the only reason, but the primary one.
I'll see if Rich has issues with it. I would think it might warrant a few more miles for the treatment at most.
Thanks. This is the ATF I used. Let me know what you think. The transmission looked clean when I took the pan off. However, it is impossible to know the inside condition of the transmission from the outside appearance. I currently might have the transmission somewhat overfilled. Have to take some out to put Auto rx in.
Valvoline MaxLife Dex/Merc ATF
Description: MaxLife DEX/MERC ATF contains a blend of base oils and a unique additive package to help extend the life of transmissions with over 75,000 miles. It is formulated to maximize transmission performance, reduce transmission wear and improve and maintain smooth shifting longer than conventional fluids. MaxLife DEX/MERC ATF is compatible with new and rebuilt transmissions and will not void new car warranties. Recommended for use where DEXRON, DEXRON II, III and VI, Toyota T-IV and WS, MERCON®, MERCON® SP and LV, Allison TES 295 and 389, Nissan Matic-D, Matic-J and Matic-K, Honda Z-1 (except CVT), Mercedes NAG-1, Mitsubishi Diamond SP-II and SP-III and many others are required.
6 Ounces of Auto-Rx will not cause an overfill with your transmission fluid ( basic hydraulic oil plus manufactures additive package) Auto-Rx is a cleaner and uses your transmission fluid as a carrier. Auto-Rx does not change or add to transmission fluid chemistry it just cleans.
The important thing is to clean out the torque converter. Suggest you ivestigate Transmission Flush Cost at a reputable shop eg. Goodyear,Shell.
Hi Frank and Geeaea, Thanks for the reply. So whats the verdict on the Valvoline MaxLife ATF. Will it work or do I have to change the ATF to a store brand one? Or do I have to run longer like 3000-5000 miles with Auto-rx like you suggested? Also, just to clarify, the Flush that you mention is after the cleaning with Auto-rx...right? Also I know this is the transmission forum, but since I have your attention, what do you think about my addition of Auto-rx to my Mobil clean 5000 conventional engine oil. That should work right?
Cleaning transmissions is nothing like cleaning a motor. An Automatic transmission is a closed system. You do not get the complex deposits in a transmission like you do a motor. Motors are subject to air borne contaminants and fuel byproducts from incomplete combustion.
Auto-Rx will clean transmission deposits running with virtually an ATF. The whole deal is to add ARX to the existing fluid an run 1000 miles prior to purging or changing out the fluid. 1000 miles has proven to be enough dwell time to dissolve and suspend deposits on shifting valves and deposits within the tourque convertor. We also recommend cleaning or changing the mesh filter filter or magnet in the pan.
