I just changed out the trans fluid in my MN6 with Redline D4 ATF and Redline in the differential also. All I can say is WOW!! You guys told me I would notice a difference in shifting and smoothness, but I never expected this big of a result from this change. I swear, the trans is even quieter.

Great mod / upgrade and VERY glad I did it. Highly recommend it to anyone wondering if it is really worth it.


[Modified by BradSW, 12:33 AM 12/24/2003]

 

I agree. I'm going with AMSOIL ATF and the 75W90 for the differential next month. I've heard great things about both synthetic fluids for our transmission and differential. Glad to hear you're happy with your results. Good luck! :cheers:

 

:cool: When I change mine the next time, I will consider going this route also.

 

Happy here with Amsoil fluids. :smash: :)

 

I will be changing mine to amsoil in the spring, and I will be talking to IMQUIK then to get some! :thumbs:

 

Guys, your C5 came from the factory with Synthetic lubricant in the Differential. I agree that the Synthetic Redline MTF provides smoother and quieter operation of the trancmission.

Jim

 

BRad, how many quarts of fluid did you need? I have seven quarts of D4 ATF in the garage, left over from when I changed the fluid in my old '93 automatic. I mean to drain and fill my '99's fluid in the spring...

 

Ive been reading about a number of different probs by doing that, anyone else having these probs

 

00 Coupe. Redline in tranny, Diff and engine over 1-1/2 yrs. Great stuff & no probs.
Fred K

 

:lol: We're in the same boat. I just swapped my fluids and noticed a TREMENDOUS difference:
http://forums.corvetteforum.com/zerothread?id=716264

 

You don't use MTF in the M6. It takes Automatic D4 fluid. Makes a nice difference in the T56 especially in cold weather.
The original diff fill should be drained within 12K miles. All the wear occurs early in use. Best to get all the abrasives out of there in a reasonable time.
I used Redline without adding any modifiers. All is well.
mike

 

Mine took just under 4 quarts in the Trans.

 

If you really want to get precise and technical C5~Missle, the C5 Manual Transmission takes DEXRON-III Automatic Transmission Fluid.

If you knew anything about lubricants you would know that the Redline MTL works great in the C5 transmissions, and has been designed to work in all synchro manual transmissions. The Red Line MTL has the identical viscosity charastics of the Red Line D4 ATF (they both meet SAE75W/80 viscosity requirements), they both have the same excellent low temperature fluidity, and also both meet the quality requirements of API GL-4 gear Oils. The real difference between the Red Line MTL and the D4 ATF is the MTL doesn't have the friction moderfiers in it to take care of the Automatic Transmission Clutches, which, of course, the Manual Transmission does not have. So, as far as lubrication the MTL, which has perfect frictional characteristics for the synchros, really is the BETTER lubricant for your Manual Transmission.

If you're really concerned about "all the abrasives" in your differential, why don't you drain and replace it immediately after picking up the car? Or, after only one month of driving? Wouldn't that get those auful abrasives out of there sooner? Where did all these abrasives come from?

As far as all the ware occuring early in use, it is true that the ring gear and the hypoid gear mate/mesh together to develop a very smooth ware patern on both the ring and pinion. This smoothing of the tooth sufaces is normal and allowed for with the proper clearences and bearing preloads established at assembly. This is NOT ware but a mating process that smooths the mating surfaces. Real ware occurs when the lubricant film srength between the ring and pinion gear is breached and you get metal to metal contact, or the operating conditions cause a bearing to fail. Under these conditions you get fine metal particals churned up in the lubricant and this causes further poor lubrication and destruction. Assuming a person doesn't beat the crap out of their Vette during the first 12 months of it's life, your statement that "all the ware occurs early in use" is inaccurate. Ware is an accumulative process, and in a differential is caused by poor or improper lubricants, high temperatures (which lower the film strength of lubes), low lube level, or severe/violent use by the driver.

I hope that this help to clear up previous inaccurate statements/opinions. :cool:

Jim Helm

 

How many quarts does the Differential take?

 

1.69 quarts plus 4 oz of limited slip additive.

 

:iagree: This is a smart guy! :yesnod:

 

glad you are having success with it, i might have to try it. :thumbs:

 

REDLINE OIL and diff fluids... big big differance... by the post i got it just in time... the 00 vert just turned 12k when i did this

 

:iagree: :cool: