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I have always been a fan of Redline. You can also get it with and without the additive. All the additive is for is to make sure the clutches don't chatter on turns. I currently have 75/140ns (non slip no additive) in with a little 75/140. Tried the thicker stuff to see if it would help to keep gear whine down. Don't think it made a difference. I have run the amsoil also and the bags do make it easy to put in
I have ran everything from mopar 75/85 to viper 75/140 to valvoline to redline and now...I'm on motul comp 75/140 - they all made noise with mine but motul made the least.
For FM I've used mopar and redline. Currently redline is in with the motul.
Even if it has the FM added already I usually find the amount added to be insufficient. Always end up adding a bit more.
I have a 2nd bottle of each fluid I've ran with extra FM added. I'll add 1 bottle with no extra FM (straight fluid) then top the diff with the 2nd bottle that has added FM.
Like jonx96, I use Amsoil in diffs with good results.
I try to get the break-in crap out at around 500 miles, then check the magnetic level plug every now and then to make sure things are still good in there.
The friction modifier only for clutch chatter. Makes it more slippery so it doesn't happen on turning but I'm yet to ever hear it on anything. Gear noise has nothing to do with it
The friction modifier only for clutch chatter. Makes it more slippery so it doesn't happen on turning but I'm yet to ever hear it on anything. Gear noise has nothing to do with it
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