Anyone Used Auto-RX in Their Trannies? (ATX or MTX)

[JRA2000TL]

Just curious. I know some of us use it in our engines. I'm sure the internals of my 89's MTX are well worn at 256k. Right after I bought the car I changed the fluid with Valvoline MaxLife ATF. It doesn't grind nearly as bad as the day I bought it now that I'm putting more miles on it with the new fluid.

I have found that if I press the clutch and don't wait 3 sec. to shift into R or 2nd, that it will occasionally grind....reverse I'd consider normal; 2nd, not so much maybe. I know the shifters came with a tag on them when the cars were brand new and the instructions specifically state to wait 3 seconds before shifting from N to R. When I do this, I'm ok. When I first got the car, I thought the trans was totally shot. It was grinding horribly.Dan (SHOhopeful) witnessed this when we took it for a test drive. The ATF seems to have greatly improved it so far.

I guess it's the blocking rings? that wear out over time in these cars. Guess my ultimate goal of my long-drawn out post is that if any have used it in their MTX or ATX, how'd it work? Did shifting improve or get smoother? Supposedly you can also use this in your power steering. It's simply a detergent with lanolin as a cleaning agent.

 

[K-Dawg]

Reverse isn't syncronized. Unless I am shifting into reverse immediately after starting the car without releasing the clutch, I always go into a forward gear first.

I'm not sure what AutoRX is going to change.

 

[kevinspann]

AutoRX won't fix it. You might have to try a different fluid to see if it will help, but, the blocking rings are probably worn. The 89s have brass ones....

 

[JRA2000TL]

I'm sure the car will need a new tranny at some point with all these miles on it; that's fine. Just want it to last a little while in the meantime.

 

[SHOVNST]

Consider Justice Brothers (aka JB) or Barry Grant (aka BG) products. Most over the counter products are a waste of money.....

 

[kevinspann]

I think some people have used snychromesh in the earlier trans, but YMMV. You might need to try a cocktail to get it to shift better. Or just find a lower mileage trans.

With the brass blocking rings, whatever fluid you use wont really "soak in" like it would with the fiber lined rings.

 

[itwonder]

ATF is full of detergent already. Auto RX is not going to do anything worthwhile. It's snake oil and some are believers. I'm not.

 

[Vnuk1]

I'm prepared for the flame comments after saying this but, whatever. Use an ATF Fluid and mix it with Lucas automatic transmission conditioner. I've been using the stuff for years and it has made a difference in my ZR-2 and I used it in my first SHO. It's worth it, try it out..

 

[rubydist]

while AutoRx has the ability to help your engine, it will not help your transmission.

first, a short description of what AutoRx does and why you might need it - in the engine, combustion byproducts get into the oil and degrade it. the combination of combustion byproducts (hydrocarbon strings of various lengths) and degraded oil result in deposits of carbon materials in various areas of the engine. this begins as a slight 'varnish' of a sort of gold color, and progresses to black carbon buildup. depending on the engine and how its used, the carbon 'piles' may be soft or baked hard. AutoRx is a combination of detergents that can help the oil dissolve and move these carbon deposits into the oil filter so they can be removed.

none of the above has anything to do with either a manual or automatic transmission, so the AutoRx will not do anything of value in the transmission.