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Which redline Oil to use??

  • MT-90

    Votes: 41 82.0%
  • 75-90W

    Votes: 1 2.0%
  • MTL

    Votes: 8 16.0%
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Drive it like ya stole it
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Discussion Starter #1
Which Redline oil is best for our trannys(With NA for now....: )? Please complete the survey along with a reason...thanks guys...:D
 

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Drive it like ya stole it
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Discussion Starter #2
Com'on guys....

I know you guys have some expierence with these oils...help me out!!!:confused:
 

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MT90 is the fluid to use. 75w-90 and MT90 are the same thing.
 

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eric96ser said:
MT90 is the fluid to use. 75w-90 and MT90 are the same thing.
Are you sure? The local auto parts store stocks some redline but not MT90. I remember reading the bottles to find out which one to use instead.... I know one of them was for GL-5 (which I think was the 75w-90). I ended up getting MTL because it was rated GL-4.

Steve
 

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Living up Boost
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I bought mt90 (which is gl-4) for my tranny. When I was doing research for what tranny fluid would be best, I just remember learning that gl-5 is bad for our synchronizers as a result of the addition of certain additives to improve gear protection. Just make sure that you use a gl-4 rated fluid if you worry about synchronizers. gl-5 provides better protection for gears though. I remember lots of people saying don't use mtl since its viscosity grade is not within the spec that the FSM recommends.

-saaby
 

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70/30 Racing
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i ran Mobil 1 synthetic 75w-90, which is a GL-5 oil. the car would grind when shifting into 1st at anything above 5mph without some serious rev matching. also, i blew up my tranny on an NA motor with this stuff in there. i would defintely recommend using the MT90, it is a lot better and makes the tranny shift A LOT better. it also smells like strawberries, instead of that nasty gear oil smell.
 

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where can I find this MT90 stuff and how much is it?
I have Mobil 1 in there now and I think its killing my car!!!
 

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I actually called redline (800-624-7958) and asked what I should be using. Without hesitation the guy recommended MT-90. MTL would do in a pinch in cold to moderate climates.

Steve
 

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If the car is a track whore or a big HP monster I would suggest 75W140. I hear this weight has saved many a tranny from breaking 3rd gear. Otherwise MTL is the way to go.
 

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Drive it like ya stole it
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Discussion Starter #13
autoxer7 said:


Check out the redline website at redline oil for a list of dealers. Should be about $8-9 a quart.

Steve
you can get it from http://www.myoilshop.com for $7 a quart, and you can get a 10% discount by putting in dealer code 675421 . I'm getting a case of the oil myself. I'm also getting some other stuff like the wetter watter...:D :p :eek:
 

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is gear oil the same as manual transmission oil? i have 2 qt of some Castrol Syntec 75w90 "gear oil"...

i have that really really bad unwilling-to-go-into-1st problem and i want it cured =/
 

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Discussion Starter #15
Limited Slip said:
is gear oil the same as manual transmission oil? i have 2 qt of some Castrol Syntec 75w90 "gear oil"...

i have that really really bad unwilling-to-go-into-1st problem and i want it cured =/
Yes, the transmission oil on www.myoilshop.com is gear oil

The MT-90 will work in your tranny...are you looking at www.myoilshop.com?:cool:
 

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i just bought the castrol syntehtic oil at the oreillys.

it seems as if, according to redline, gear oil is for the differential and the tranny oil is for gearbox =/

i dunno if i should pour this stuff in
 

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Drive it like ya stole it
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Discussion Starter #17
Limited Slip said:
i just bought the castrol syntehtic oil at the oreillys.

it seems as if, according to redline, gear oil is for the differential and the tranny oil is for gearbox =/

i dunno if i should pour this stuff in
If it says "GL-4" somewhere on the back...then it will work OK, but if it doesn't say GL-4 an only says GL-5, then *I* would stay away from it...;)
 

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hrm ill get some Redline MT then. but i dont know of any localplace tht acrries it and i dont want to have to wait for shipping from buying on interent
 

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Drive it like ya stole it
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Discussion Starter #19 (Edited)
Limited Slip said:
hrm ill get some Redline MT then. but i dont know of any localplace tht acrries it and i dont want to have to wait for shipping from buying on interent
What does the Castrol stuff say, GL-4 or GL-5? If its GL-4 you can probably use it untill you get the REDLINE stuff in the mail...it costs 6.30 a quart from www.myoilshop.com ...read up in my postings an find the dealer code you have to put in...
 

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hrm its gl5 and i just spent 15 bux on it :eek:

id get the MT but i dont wanna have to put up with billing and waiting for shipping and stuff :x
 
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