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transmision oil #680657 12/28/05 11:58 PM
Joined: Jun 2004
Posts: 134
L
lu0902 Offline OP
Wheeler
I want to change the transmision gear oil on my truck. I want to get Red-Line gear oil, but am not sure which one to get. Do you recommend MTL or MT-90. The servive manual recommends GL-4 or GL-5 with a viscosity of SAE 80 OR 90. I called the dealer and they do not sell mopar gear lube. They wanted about $150 to change the trans oil. <img src="/forums/images/graemlins/scared.gif" alt="" /> I have a 5 speed manual. Thank you for your help.


1987 DODGE RAIDER 4X4, 2.6 LITTER, 5 SPEED MANUAL MODS+PARTS:
Re: transmision oil [Re: lu0902] #680658 12/29/05 01:08 AM
Joined: May 2003
Posts: 1,121
PartyTruck Offline
Body Damage is Cool
I use 75/90 hypoid gear oil on my Gen2. I'm not sure what the older models use but the manual for the gen2 clearly states that you should only use gear oil intended for Hypoid gears. Last year I used regular 80/90 gear oil on everything and the gearbox burned the oil in no time, so did the rear diff. I'm not sure if I did any real damage but I'm sure time will tell.

If someone has a owners manual from a '87 please check it out and post here because I heard that this is the most common cause for the gen2 gearbox to die over here.


1987 SWB Pajero 2.5 TDI on 31" rubber waiting for a hip replacement and bigger shoes
Re: transmision oil [Re: PartyTruck] #680659 12/29/05 02:51 AM
Joined: Jun 2004
Posts: 134
L
lu0902 Offline OP
Wheeler
Quote
clearly states that you should only use gear oil intended for Hypoid gears.
I looked it over in the manual and your right, Hypoid gear oil. Are the Red Line gear oils campatible.


1987 DODGE RAIDER 4X4, 2.6 LITTER, 5 SPEED MANUAL MODS+PARTS:
Re: transmision oil [Re: lu0902] #680660 12/29/05 04:31 AM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
I'd contact redline and ask them directly via email so you have it in writing. Also ask them about guarantee's just in case your tranny implodes after using it. <img src="/forums/images/graemlins/zombie.gif" alt="" />


Off Roader
98 Montero with the Winter Package
89 Montero minty clean and reserved for overlanding trips or Cars and Coffee events
96SR (3.15:1 xcase, 35's) gone to the rust gods
96SR Build Up Thread
Old web page
Old web page
Re: transmision oil [Re: lu0902] #680661 12/29/05 07:54 AM
Joined: Mar 2005
Posts: 381
R
Roll_me_over Offline
Mudrunner
Quote
Do you recommend MTL or MT-90.


Go with the MT-90 and you'll be fine...I'd run it if I could afford it, or was willing to pay that much for it...


02 Ford F-250 4X4 PSD...zero body damage
67 Weimann 18' Jet boat...zero body damage except for the trailer drags on the ground from time to time
Re: transmision oil [Re: Roll_me_over] #680662 12/29/05 03:18 PM
Joined: Oct 2004
Posts: 6,332
52degrees Offline
Trail Leader
****
I'm using MTL in mine. No problems so far.

Clay


1990 Montero RS (In pieces... for now)

KG6VNX
Re: transmision oil [Re: lu0902] #680663 12/30/05 03:28 AM
Joined: Mar 2005
Posts: 1,006
P
pcc Offline
Body Damage is Cool
I use Redline GR75W90 for differentials and MT90 for transfer case. Of course I have an automatic so I would suggest you email Dave Granquist at Redline for his recommendations.
dave@redlineoil.com


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles
Re: transmision oil [Re: pcc] #680664 12/30/05 04:16 AM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
I was talking to the guys at Southern Gear, who rebuild nothing but manual trannies, diffs, and tcases, and they told me the same thing I heard 10 years ago about Mitsu 5spds. They recommend dexron atf in the tranny. The other guy had used it for over 200k miles on the original gearbox, and he didn't baby it - fast driving and heavy towing - and it shifted like butter, with no whines or grunches, and the shifter didn't move when you got on and off the gas (worn thrust washers or bearings).


Not responsible for advice not taken...







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