For the last 2 months I have been hearing a humming noise from under the hood. It was louder while accelerating but still audible while still in gear/no gas. It has been getting progressively louder and louder so I decided to change out my ENEOS 75w90 Manual Transmission fluid for Mobil1 synthetic. THE NOISE IS GONE!
I used ENEOS 75W90
My TC is a 2007 with 40k miles.
The ENEOS had 20k miles on it.
I try to squeeze the gas mileage on my car, so I take it very easy on the engine/trans.
So if you are getting a noise/ hum with the transmission in gear and you have ENEOS its time to change that fluid!
Just throwing out there, I could see this fluid definitely causing a problem/ premature wear later down the road.
Buyer beware

 

ive switched to eneos and never looked back,ive used every fluid out there,eneos what the best and felt the different right away,especially cold months,takes like 10 mins for it to warm up even at that i just get in the car a drive no warmingup maybe 30 secs to a minute thats it