MMO In Auto Tranny

Joined
Oct 26, 2004
Messages
563
Location
Reno
Anybody here add MMO to thier Automatic tranny for more cleaning?? MMO site says you can add 16 OZ to your Auto Transmission.
 
Joined
Mar 21, 2004
Messages
26,303
Location
Upstate NY
Forget MMO. If your transmission needs cleaning use Auto-Rx. The only mystery about MMO is why so many people continue to use it.
 
Joined
Sep 5, 2008
Messages
4,627
Location
Western Washington
 Originally Posted By: Donald
Forget MMO. If your transmission needs cleaning use Auto-Rx. The only mystery about MMO is why so many people continue to use it.
Exactly.
 
Joined
Dec 13, 2006
Messages
348
Location
Northern VA, USA
 Originally Posted By: Donald
Forget MMO. If your transmission needs cleaning use Auto-Rx. The only mystery about MMO is why so many people continue to use it.
Uuuhhh, because it works! MMO's base oil is the same as ATF (per Rick Kelly, Marvel Technical Director) so it is very compatible, but the additive package is different - geared towards Cleaning, AW, and Friction Reduction. It is recommended in ATF's at 16 oz to help clean up any sludge, but primarily varnishes.
 
Last edited:

PT1

Joined
Feb 6, 2007
Messages
5,746
Location
near the mistake
 Originally Posted By: Donald
Forget MMO. If your transmission needs cleaning use Auto-Rx. The only mystery about MMO is why so many people continue to use it.
+3 MMO in your trans=
 
Joined
May 12, 2008
Messages
6,318
Location
Canton, GA
 Originally Posted By: PT1
 Originally Posted By: Donald
Forget MMO. If your transmission needs cleaning use Auto-Rx. The only mystery about MMO is why so many people continue to use it.
+3 MMO in your trans=
Yeah,what they said!!
 
Joined
Apr 1, 2008
Messages
3,701
Location
Iowa
I don't have anything against MMO, but wouldn't put in my transmission. Do use it in the fuel occasionally though. I've had ARX in my tranny for 1,100 miles(going over the recommended mileage) and it's shifting nice and smooth.
 
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