I had a Dodge Ram 50 5-speed 4x4 (a Mitsubishi Mighty Max in drag) that was very difficult to shift when it got down around freezing. I drained the transmission oil (warm) and I could tell by looking at it drain that it was too thick. Don't know what the previous owner had in there.....my guess is 90W-140. I had done some research, and the manufacturer recommended a 75W-85, with some kind of additive recommended. I followed some other advice to just put GM Synchromesh in there. Synchromesh, from reading the bottle, is just a straight 75W gear oil. It completely solved the problem. I bought the truck with 90K on it and drove it to 160K with smooth shifting throughout.
Manual trans lube
- Thread starter Sonataman
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GM synchromesh is very good trans fluid!
MolaKule
Staff member
Quote:
+1 for synchromesh and -1 for synthetic it may cause syncros to drag.
Synchros don't drag. Too high a viscosity when cold will cause the shifter to resist movement.
MTL specific synthetics have the same type of additives as conventional MTL specific oils but have a wider temperature range.
All of the MTL specific oils are synchromesh lubes.
I have a suggestion: When discussing Redline MT lubes, one must be specific about their designations, such as MT-90, MT-85, and MT 70W80, which have different viscosities.
+1 for synchromesh and -1 for synthetic it may cause syncros to drag.
Synchros don't drag. Too high a viscosity when cold will cause the shifter to resist movement.
MTL specific synthetics have the same type of additives as conventional MTL specific oils but have a wider temperature range.
All of the MTL specific oils are synchromesh lubes.
I have a suggestion: When discussing Redline MT lubes, one must be specific about their designations, such as MT-90, MT-85, and MT 70W80, which have different viscosities.
Originally Posted By: Ken42
Why did you change the fluid so soon in a 2011 car?
The recommended interval is 60k unless you have gone that far all ready.
You should use the RL MT-85 75W85 GL-4 Gear Oil
Especially if it is still under warranty.
You can use any brand of oil you want as long as it
meets Hyundai specs. The MTL does not.
Ken
Manual transmissions create the most wear metals withing the first 10,000 miles, and that is why many people drain and fill earlier than usual.
Why did you change the fluid so soon in a 2011 car?
The recommended interval is 60k unless you have gone that far all ready.
You should use the RL MT-85 75W85 GL-4 Gear Oil
Especially if it is still under warranty.
You can use any brand of oil you want as long as it
meets Hyundai specs. The MTL does not.
Ken
Manual transmissions create the most wear metals withing the first 10,000 miles, and that is why many people drain and fill earlier than usual.
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