Hey guys,
im gonna change my gear oil and trans-axle oil. Which one of the redline products do i need and how much? thanks for your help...

 

I would like to know this also...

 

ok, i contacted the company and this what they recommend:

Trans:
Blend of
MTL (2 quarts) + MT-90 (2 quarts)

Diff:
75W90 (1.5 quarts) the capacity is 3 pints

 

I wonder how much better redline is compared to the OEM stuff they put in at the dealer...

 

i ran royal purple and still do...its smoother then the stock fluid on shifts

 

4 qts of MT90 Redline in my 6MT

 

From the Website:

DIRECTIONS FOR USE

Red Line MTL may be used in transmissions which recommend 75W, 80W, or 85W GL-4 gear oils, or SAE 30 or 5W/10W30 motor oils. If a 90W GL-4 or SAE 40, 10W40, or 15W40 is required, MT-90 may be used. If the transmission or transaxle requires an SAE 90 GL-5 gear oil, then Red Line 75W90NS or 75W140NS Gear Oil may be used. In transmissions which recommend Dexron or Mercon fluids we recommend our D4 ATF which is very similar to the MTL, being a GL-4 Gear Oil also. The D4 ATF will provide better low-temperature shiftability, and the MTL would provide better wear protection for racing use. MTL is not designed for use in rear-wheel drive differentials. Those generally require a GL-5 lubricant such as Red Line 75W90 Gear Oil. It is not necessary to flush the transmission before replacing with MTL. Remove the drain plug and drain while warm. Seal compatibility has been designed to be similar to petroleum lubricants, and leakage should be no greater than any other oil of comparable viscosity. Being formulated with extremely stable synthetic basestocks, MTL and MT-90 will last much longer than conventional petroleum lubricants. However, we do not recommend extended drain intervals, since without a filtration system, there is no way to remove metal shavings other than draining the lubricant. The regular maintenance intervals are also recommended to insure that the proper level of the fluid is maintained.

 

But once again, is it really any better than the OEM fluids?

 

Absolutely. I put Amsoil diff fluid in my '03 and noticed the difference in shifting immediately. I also picked up 50 HP.

 

hell yah, I just changed to redline MT90 4qts and I think i gained about 500hp

 

i picked up about 200 to the fly... good stuff

 

Hahaha! I put in MT-90 in mine and it shifts alot smoother than with the oem fluid. Not sure about any HP gains though didnt dyno it afterward!

 

+1 for the tranny.

1.5 quarts of 75W-90 in the diff. redline all the way. summitracing.com is a good place to buy it.

 

To revive a stale thread here, I'm just curious if you guys that have changed the tranny with redline have any issues with it while it's cold. I am looking to replace mine in the near future and caught that RP thread that had every poster that changed tranny fluid state that the tranny was smoother when warm but pickier while cold. I'd like to get it as smooth as possible at all times if it can be done.

 

Vasaline Works For Smoothness All The Time!!!

 

^^^^^
Well that was helpful.

 

I've used 50/50 Redline MTL & MT90 for a couple years, driven all year, and it works fine with no issues. I also track my Z a lot, and all is well. Even added 76.9 HP!

 

Well hell man, for 70+ HP MTL+MT90 sounds like a winner!

Serious though, good to hear some feedback on that blend from someone with colder winters than I get here. I could actually deal with some amount of initial stiff shifting when it gets cold as **** out, but not every time the car is warming up in better temperatures.

 

Im gonna be doing a redline tranny and diff oil change here soon.

I saw a before and after dyno on HP TV of a car that had all of its fluids changed to royal purple and they gained 6hp I was impressed, and that was on a camaro.

 

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