ClubWRX Forum banner

1 - 14 of 14 Posts

·
Registered
Joined
·
62 Posts
Discussion Starter #1
I recently purchased 4 quarts of this oil and I am wondering if synthetic is going to be to "slippery" for my transmission. My car has almost 50,000 miles, and it's time to change the gear oil. I live in Boone, NC and we are getting ready for a cold winter. Is there any type of gear oil anyone recommend or will the Mobil 1 be ok? Thanks for your help.

Russ
 

·
Registered
Joined
·
1,588 Posts
I've read not to run the Mobil1 synthetic in your tranny...

Now if it's for the rear diff you should be fine...
 

·
Registered
Joined
·
1,578 Posts
a local guy ran it in his tranny and it seemed to cause some problems.
here's a post from him on LERSOC:
"Do not use mobil 1 on your tranny bad idea moly the 50% comp of mobil 1 is not good for the tolerance between the shyncros , I have to take my to the dealer ,they change the fluid and I have to wait to weeks for the new oil flush mobil 1 and see if my problems with my tranny get fix the problem was ,I grind in every gear. If any of you guys use mobil 1on the tranny let me know.thank"

that was back in June. i saw him about a month ago and his WRX was going to the dealer to get new syncro's, and clutch (i think under warranty too)

i recently went with Redline MT-90 and a little LW Shockproof. no problems in about the 5k that i've gone so far.

tech article from Cobb:
http://www.cobbtuning.com/tech/gearoil/index.html
 

·
Registered
Joined
·
62 Posts
Discussion Starter #4
thanks guys. anyone want 4 quarts of mobil 1 synthetic gear oil? :)
 

·
Registered
Joined
·
157 Posts
I run Mobil1 in my transmission without any problems whatsoever- over 8K on the fluid so far. I ran it in my last car, too, and got 200,000 trouble-free miles out of it. All I can say is that it's worked great for me.
 

·
Registered
Joined
·
0 Posts
Ive had it in my tranny for about 8k miles with no problems. I have yet to grind a gear, even ragging it out on windy mountain roads.

I have also seen a lot of people here complain about grinding with it, but its working fine for me.
 

·
Registered
Joined
·
157 Posts
Quack said:
which vehicle?
Sorry- the WRX. The Yukon is an automatic (they all are) and just has regular ATF, the 3B gets whatever I give it.
 

·
Registered
Joined
·
2,832 Posts
i put Mobil 1 to my tranny and diff recently since this was the only decent brand that i could find. No Redline in my part of Chicago :(
 

·
Registered
Joined
·
823 Posts
I've had Mobil1 in my trans. and rear diff. for over 20k so far (30,000mi.-50,000+). No problems yet.
 

·
Registered
Joined
·
8 Posts
i have mobil one and i seemed to have a problem with my tranny but i think it's the clutch

but i did notice grinding in the 1st gear.....
 
1 - 14 of 14 Posts
Top