Noisy transmission 3 months after fluid change with motul
 

So 3 months ago I decided to change the rear diff and transmission fluid to Motul 300. My fluid levels are good. But when cold there's a loud whining sound in reverse, i understand cars are going to make noise in reverse but the noise is really excessive and just started happening. Is this a characteristic of this fluid. does anybody else have this issue. I definitely hear it when its cold. It's a hit or miss when its hot. Thanks

Any stiffer mounts or bushings? This usually happens when stiffening up the drivetrain.

Does not have to do with the fluid, unless you have a leak and your fluid is running low.

No dont the have any stiffer mounts or bushings. Only Cusco rear Lcas but that is irrelevant. Checked my fluid and it's perfect. Guess its internal transmission. Just wanted to check with Motul 300 users to see if they had this issue

No issues here with Motul 300. Now that I think about it, I don't remember hearing the reverse gear ever in this car. Usually there is a small gear whine in other cars.

Yea I have almost 20k on the car and have never heard noise in reverse before. Guess I gotta take it in.

I have 35k with Motul 300 in the trans and the diff.

No issues here.