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wheres is the fill hole at for the tranny on the 2.3?



I would not use shockproof in the tranny either.I'd stick with mt90. I used to run the ultralight shockproof (about equal to a 70w90) in the diff of my 96 Miata. It worked great. NO more chatter and smooth operation.But since i raced and drove it hard I changed the diff fluid every 6 months and the trans every year. I also used RL oil in the motor every 2500-3000 miles ;)



[quote author=*txmica3* link=topic=67903.msg2246583#msg2246583 date=1208622937]
just got my mt90, probably going in monday :)
[/quote]
 

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[quote author=miata_racer link=topic=67903.msg2256399#msg2256399 date=1208959377]
wheres is the fill hole at for the tranny on the 2.3?



I would not use shockproof in the tranny either.I'd stick with mt90. I used to run the ultralight shockproof (about equal to a 70w90) in the diff of my 96 Miata. It worked great. NO more chatter and smooth operation.But since i raced and drove it hard I changed the diff fluid every 6 months and the trans every year. I also used RL oil in the motor every 2500-3000 miles ;)



[quote author=*txmica3* link=topic=67903.msg2246583#msg2246583 date=1208622937]
just got my mt90, probably going in monday :)
[/quote]
[/quote]

it went in yesterday. the fill hole is on the bottom facing semi-downward. i had to use an "injection cartridge" with a hose on the end.. it was ghey. who puts a fill hole facing 45* downward?!

btw, any word on mm? im hoping to get it ordered this week.. (sorry, inside info)
 

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[quote author=technic link=topic=67903.msg2212339#msg2212339 date=1207565868]
Is the lightweight shockproof GL5 or 4? As some people think they will destroy yellow metals over time. ie. bushes and synchros.
[/quote]
guys this is true. shock proof eats away at yellow metals I.E. syncros which are made of brass. shock proof is bad stuff and unless you are racing your car at the track....and only racing the car i would not let the stuff touch and transmission in any car i ever own.

MT90 however is FTMFL.

i had a buddy with a 350 WHP se-r. he ran nothing but shock proof in his trans. he bought the tranny rebuilt from a guy that had it shot peened and cryo treated......long story short is grenaded 3rd at the track and we took it apart, syncros look like a robot puppy got a hold of them
 

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I think shockproof is a GL5 based oil and thus attacks yellow metals over time. I have read most of the articles regarding this on various websites. It doesnt happen straight away, will take some time but will half your tranny life if you leave it in there.
 

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[quote author=*txmica3* link=topic=67903.msg2278297#msg2278297 date=1209618213]
[quote author=Xenon929 link=topic=67903.msg2278291#msg2278291 date=1209618065]
MT90 is fine.
[/quote]

+1

to classicaddict - why do you think mt90 is so bad/what do you use instead? plenty of people have had good feedback with it..
[/quote]
no, i like MT90, thats all i have ever used. FTMFL = for the mutha fuc$in lock = good lol.
 

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FTMFL usually means lose.
 

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Used Light Weight SP in my Subby transmission on the recommendation of a shop that specializes in Subby transmissions. This same shop doesn't recommend for most 6 speed transmissions, and further more for Evo owners recommends the special blend Mitsubishi uses for their transmissions because of different set up.

Me personally, my transmission is so smooth eith the OE fluid I can't see switching it for daily driving. I don't auto cross so I can't speak for that aspect. Any way, that's my 2 cents :split:
 

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I've heard this same argument on the Diesel Truck websites. Alot of us Dodge 6spd guys use Redline MTL in the NV5600 transmission and MT90 in the NV4500. I have not heard any problems with it attacking the syncros. Some even mix the two 50/50
 

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Discussion Starter · #39 ·
[quote author=BLEA636 link=topic=67903.msg2548330#msg2548330 date=1219082494]
I've heard this same argument on the Diesel Truck websites. Alot of us Dodge 6spd guys use Redline MTL in the NV5600 transmission and MT90 in the NV4500. I have not heard any problems with it attacking the syncros. Some even mix the two 50/50
[/quote]

I think people were saying the shockproof attacks the synchros, not the MTL or MT90.
 

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^ I can confirm that.

Works great in an LSD with an additive though!
 
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