apedog Posted November 22, 2009 Report Share Posted November 22, 2009 i know its gear oil but what number as in 85w90 or whatever and lsd any certain kinds? Link to comment Share on other sites More sharing options...
Killtodie Posted November 23, 2009 Report Share Posted November 23, 2009 I used Royal Purple Gear Oil 75w140. It has a friction addictive. Link to comment Share on other sites More sharing options...
Cobalt60 Posted November 23, 2009 Report Share Posted November 23, 2009 Interesting fact, Computer Tune and Lube told me it would cost $80 in the oil alone. Found the stuff at Autozone for about $20. He tried claiming it was because of how the price of oil has gone up. That was the last time I went there. Link to comment Share on other sites More sharing options...
Killtodie Posted November 23, 2009 Report Share Posted November 23, 2009 Places generally charge a lot more labor for a tranny/trans change for some reason, even though its less work cause you dont have to deal with a oil filter a quart of RP is around $16-20 and you need 1.5 quarts of the stuff. Link to comment Share on other sites More sharing options...
apedog Posted November 23, 2009 Author Report Share Posted November 23, 2009 I used Royal Purple Gear Oil 75w140. It has a friction addictive. what should i get if i dont want to get royal purple 1 Link to comment Share on other sites More sharing options...
Killtodie Posted November 23, 2009 Report Share Posted November 23, 2009 Why not use Royal Purple? Its god. I guess you can use any gear oil of high viscosity that has a friction modifier. If you want to notice a great improvement, I can only recommend RP. You only change the diff like ones every 50k. Whats an extra $25 to spend every 3-4 years? Link to comment Share on other sites More sharing options...
Komeuppance Posted November 23, 2009 Report Share Posted November 23, 2009 LOL... The factory specifies: 1.3 liters (1.37 quarts) of:1. GL-5 Hypoid Gear Lubricant 80/90wAND for LSD2. Friction modfier. -Robert Link to comment Share on other sites More sharing options...
Komeuppance Posted November 23, 2009 Report Share Posted November 23, 2009 (edited) Why not use Royal Purple? Its god. Ahah funny. I use Mobil1 Synthetic. Factory manual says replace every 15,000 miles for 1986. But in 1988 they changed it to every 30,000. -Robert Edited November 23, 2009 by Komeuppance Link to comment Share on other sites More sharing options...
Killtodie Posted November 23, 2009 Report Share Posted November 23, 2009 hmmm, I was told 75w140 and 50k... w/e RP 4tw Link to comment Share on other sites More sharing options...
mistapickles Posted November 23, 2009 Report Share Posted November 23, 2009 hmmm, I was told 75w140 and 50k... w/e RP 4twI tried that light truck gear oil and found it was too thick. I used it in my tranny and diff. what I found was the gears were noisy until I had driven it for a mile or two, which lead me to believe it was so thick that it needed to be warmed up before it started working...I use Mobil1 75-90 with Sta-Lube Equa-Torque LSD additive and never had a problem since. Link to comment Share on other sites More sharing options...
Killtodie Posted November 23, 2009 Report Share Posted November 23, 2009 I honestly cant remember what viscosity I used for my tranny and diff. I used Royal Purple gear oil for both based on what the folks at RP told me and what people said here. I know for a fact that I used 75w90 for the tranny and whatever higher viscosity RP has for the rear diff. All I know is my shifter stopped shacking after RP, much better shifting. Link to comment Share on other sites More sharing options...
Indiana Posted November 23, 2009 Report Share Posted November 23, 2009 (edited) Its nearly clear and it doesn't stink. There is nothing to "add" to it, it was made ready to go. They also have regular gear oil, meaning not for LSD and it has no friction modifier added. Only the Conquest manuals tell you about the friction modifier, the Starion manuals tell you to use this. Mopar wants to you to buy their fluids and their additives and Mitsubishi wants you to buy their fluids. Who made the car? http://www.b2600turbo.com/images/DIAQUEEN%20lsd%20oil.jpg Edited November 23, 2009 by Indiana Link to comment Share on other sites More sharing options...
NewCONQUESTowner Posted December 2, 2009 Report Share Posted December 2, 2009 (edited) I dont meen to butt in or thread jack or step on anyones toes... Two things I was told to use was Pennsoil Syncromesh for the tranny and any brand of 75-90 synthetic gear oil for the diff. as long as it has the friction modifier in it, if not you have to add that... How accurate was that info that was given to me? This info was given to me based on the year of my car which is an 88. Edited December 2, 2009 by NewCONQUESTowner Link to comment Share on other sites More sharing options...
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