Redline Transmission Oil
#1
PoloRican Rotary
Thread Starter
Join Date: Feb 2004
Location: Maryland
Posts: 1,501
Likes: 0
Received 0 Likes
on
0 Posts
Redline Transmission Oil
Heres my question: You guys say I need to order 2 quarts of each Redline MT-90 Trans axle Lube and Redline 75W90 Gear Oil. I'm guess this two go into two different spots, correct? You guys have to forgive me for my stupidity, this is my first time trying to change a manual transmission oil.
#2
He's as bad as Can
I would get 3 of each just in case something happens. The 75W90 is for the rear Diff and the MT-90 is for the 6-speed.
http://www.5cats.org/rx8/trans_diff_refill/
$ https://www.rx8club.com/series-i-tech-garage-22/clarification-manual-trans-differential-crush-washers-part-numbers-44584/ sould also be of help.
http://www.5cats.org/rx8/trans_diff_refill/
$ https://www.rx8club.com/series-i-tech-garage-22/clarification-manual-trans-differential-crush-washers-part-numbers-44584/ sould also be of help.
#3
The Turkish Delight
MT-90 in the transmission and 75W90 goes in the rear differential. I just recently got them done and the tranny feels wonderful. I can't believe how smooth it is. It was already fantastic, now it's like butter.
Last edited by legokcen; 01-02-2005 at 08:27 AM.
#4
Senior Member
Join Date: Jul 2003
Location: DC Metro Area, USA
Posts: 1,554
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by cas2themoe
Heres my question: You guys say I need to order 2 quarts of each Redline MT-90 Trans axle Lube and Redline 75W90 Gear Oil. I'm guess this two go into two different spots, correct? You guys have to forgive me for my stupidity, this is my first time trying to change a manual transmission oil.
Yep, the MT-90 is for the manual transmission and the
75W90 is for the rear differential .......... if you have not already search for the DIY on this subject, I'd recommend doing so as it contains a ton of helpful info. Don't forget to buy the four fill and drain washers.
#5
Rangers Lead The Way!
Make sure you DO NOT get the 75w90ns Gear Oil. The 'ns' is for non-slip differentials. Most stores stock both next to each other so it's easy to grab the wrong bottle
#6
Rangers Lead The Way!
Originally Posted by rx8cited
Don't forget to buy the four fill and drain washers.
#7
Shifty Bastard.
Join Date: Feb 2004
Location: Melbourne, Australia.
Posts: 4,835
Likes: 0
Received 0 Likes
on
0 Posts
I must admit, I can't remember how many washers there were....I just remember not bothering to replace them. They are 100% fine for re-use. Save yourself a trip to the dealers.....
#8
Senior Member
Join Date: Jul 2003
Location: DC Metro Area, USA
Posts: 1,554
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Gomez
I must admit, I can't remember how many washers there were....I just remember not bothering to replace them. They are 100% fine for re-use. Save yourself a trip to the dealers.....
Personally, I'd rather not reuse mine ........ WTF was Mazda thinking when they wrote in the Factory Service Manual to replace these compression washers ?
#9
Shifty Bastard.
Join Date: Feb 2004
Location: Melbourne, Australia.
Posts: 4,835
Likes: 0
Received 0 Likes
on
0 Posts
Well, my V8 Ford has never had it's sump washer replaced....I've personally changed the oil on it thirteen times, and it doesn't leak a drop. The 8's tranny and diff washers will last the life of the car.......
#10
Rangers Lead The Way!
Originally Posted by Gomez
Well, my V8 Ford has never had it's sump washer replaced....I've personally changed the oil on it thirteen times, and it doesn't leak a drop. The 8's tranny and diff washers will last the life of the car.......
#11
Shifty Bastard.
Join Date: Feb 2004
Location: Melbourne, Australia.
Posts: 4,835
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by philodox
Yeah, as long as you don't over tighten and crush the washer it should be fine. Granted, they are technically "crush washers" :p
#14
Shifty Bastard.
Join Date: Feb 2004
Location: Melbourne, Australia.
Posts: 4,835
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by devious12
I just changed mine 2 weeks ago, immediate difference in shifting, niceeeeee and smooooth!
#16
Registered User
Join Date: Jan 2003
Location: Memphis, TN
Posts: 660
Likes: 0
Received 0 Likes
on
0 Posts
where in MD are you located? I have some of the tools / aids I used. You'll need a 23mm and a 24mm socket and a torque wrench is recommended. Take your time. Read the threads previously posted - printing and reading over a few times is best.
#17
Senior Member
Join Date: Jul 2003
Location: DC Metro Area, USA
Posts: 1,554
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Gomez
I suppose when they design these things, the engineers do have to make allowances for the below average, ham-fisted, meathead, knuckledragging, backyard mechanic
#18
Rangers Lead The Way!
Well, some people don't use a torque wrench to tighten things... they just keep tightening until they can't turn it anymore.. that's what most people do when they destroy these washers.
#19
Senior Member
Join Date: Jul 2003
Location: DC Metro Area, USA
Posts: 1,554
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by philodox
Well, some people don't use a torque wrench to tighten things... they just keep tightening until they can't turn it anymore.. that's what most people do when they destroy these washers.
#20
Rangers Lead The Way!
My dealer has these washers listed at a price of $2.10 each. Kind of pricey, but is it worth the security?
These washers are soft aluminum so they can be "molded" or "crushed" when you tighten the drain bolts to provide a proper seal between the bolt and the hole. The washers for the tranny and differential are the same size. I haven't looked into it, but you may be able to get aluminum crush washers at someplace like Home Depot for a lot cheaper than your dealer sells them for.
These washers are soft aluminum so they can be "molded" or "crushed" when you tighten the drain bolts to provide a proper seal between the bolt and the hole. The washers for the tranny and differential are the same size. I haven't looked into it, but you may be able to get aluminum crush washers at someplace like Home Depot for a lot cheaper than your dealer sells them for.
#21
Registered User
Join Date: Jan 2003
Location: Memphis, TN
Posts: 660
Likes: 0
Received 0 Likes
on
0 Posts
I'd say, IMHO of course, it's worth it. They are a specific composition, outer diameter, inner diameter and thickness, all for various reasons. If you want to skimp, you could probably get by with reusing the 'best' of the fill / drain plug washers when you put the fill plug back on. But if you want to use new for both fill and drain plugs, make sure to get two of them for the tranny and two of the for the diff. They are different. IIRC the rear diff is the same as those used on the Miata oil drain and maybe it's tranny and diff as well.
#24
Senior Member
Join Date: Jul 2003
Location: DC Metro Area, USA
Posts: 1,554
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by philodox
My dealer has these washers listed at a price of $2.10 each. Kind of pricey, but is it worth the security? ....
http://www.finishlineperformance.com...intenance.html
Seems like the place to get the fluid and washers. I'm not sure why they don't list the fill washers, though?