KiddJoey

I seen post where people said they used MT-90 for tranny and 75w90 for diff, isn't that the same thing ? From what I've found out MT-90 is 75w90 ? So is it a different product that is being used or do I just order MT-90 for both ? On Redline's website they also list a product called 75w90 NS, I take it this is not used for our car ?

Okay now the ignorance question (please go easy on me), is the front diff just part of the tranny and that's why I'm not finding info on changing it as well ?

Thanks for any valued input you can provide.

Here's a pic just to get more hits : )
<img src="http://images6.fotki.com/v86/photos/5/59773/246448/NightShot_4-vi.jpg"><ul><li><a href="http://www.redlineoil.com/products_gearlubricants.asp?pvID=74&amp;prodID=57& amp;subcatID=18">http://www.redlineoil.com/products_gearlubricants.asp?pvID=74&amp;prodID=57& amp;subcatID=18</a</li></ul>

DAP@EPL

MT-90 is a GL-4 75w90 oil. The regular 75w90 is a GL-5 oil. GL-5 oils aren't compatible with brass parts so they can't be used in our transmissions (but are fine in the rear diff).

75w90 NS isn't recommended in our cars, though I believe a few people have used it.

-Dave Pramanik

KiddJoey

<ul><li><a href="http://www.redlineoil.com/products_gearlubricants.asp?subcatID=20&amp;prodID =60">http://www.redlineoil.com/products_gearlubricants.asp?subcatID=20&amp;prodID =60</a</li></ul>

DAP@EPL

<ul><li><a href="http://www.redlineoil.com/products_gearlubricants.asp?pvID=74&amp;prodID=57& amp;subcatID=18">http://www.redlineoil.com/products_gearlubricants.asp?pvID=74&amp;prodID=57& amp;subcatID=18</a</li></ul>

Mike2kS4

It did make a notable difference, and I wasn't having any problems shifting and such... just did it because the OE stuff was in there for years.

The procedure for filling the fluids is extremely easy, you don't even have to take off the belly pan! Here are a couple of notes:

I used a little 1' level placed above my B pillar to get a "ball park" on whether my car is level or not. This helps with even fluid drain.

Don't totally remove the fill plug, just loosen it. If you totally remove it (and your fluid is warm because you just drove around a bit, like you should) the fluid will explode out of the drain plug and uglify that nice finish on your garage floor. Once a good-deal of fluid has drained then take the plug out.

Be sure to remove the rearmost drain plug on the tranny next. Theres about 250ml in there.

KiddJoey

Nice tips !! Thanks.

Oo.et.oO

is it easy to refill, need access from above? or do you need a pump? sorry, haven't looked yet.

DAP@EPL

Having two people helps... one to hold the hose in place under the car and the other to pump.

-Dave Pramanik

Mike2kS4

I did it solo, just routed the fill hose around the undercarriage so it was held in place while I pumped.

manuS4

Thank you guys for the comments. I will try all the options posted here. Today something wired happened, merge and exit are two different action . But my Google powered navi thinks, they are interchangeable. TESTED on Minnesota roads.