Only shell helix I could find is this motor oil.

http://www.shell-lubricants.com/prod...php?code=50044

I assume it is avail. as a gear oil, just not listed on their site. Hey Al, just curious, what is the listed weight of the helix you guys get. I have to get up there and get some from ya one of these days.

 

Where can I find this oil? Also where do you use it in all the boxes or just the front and back?

 

Here is the Shell US web site:

http://www.shell-lubricants.com/Automotive/products.php

It has all of there lubricant products listed with specifications. There is also distributor locator, with hundreds of distributors listed all over the US. They can probably even recommend which product would be best for our application.

 

Okay. alot of you guys say that the Redline MT90 sucks. How about Royal Purple?

 

just drained the Redline MT90 outa my trans and replaced it with some Valvoline Synpower 75w/90.... shifts 100% better. I know its a GL5 oil, but that is a better spec anyway (more resistant to shock loads).

in short...... get the MT90 outa there!! Replace with a good synthetic 75w/90

 

Hmm, I was kind of wondering because all of the Shell trany fluids seemed to be GL5. So maybe you don't need $75 a quart Ferrari oil , just a GL5?

A few things I am wondering about:

Are the syncros made of brass on the EVO?

I have heard that perhaps if the oil is too slippery the syncros might slip to much and not function properly?

Why does Mitsu spec GL4 for the transaxle is GL5 seems to work better? Could this be one of those deals were we find out a few miles down the road?

 

Ive used GL5 75w/90 synthetic in all of my previous cars.... Im thinking that Mitsu is calling out a "minimum" spec. I wouldnt worry about something happening to the trans because of using a "better/different" oil, I mean theres nothing super trick about our trannys......its just needle bearings, shafts, gears, syncros n' seals.

 

I'm not sure if you can purchase the Helix oil. I know they use a motor oil called "aqip" in alot of there cars, which I also have no idea where to purchase. Maybe tom can enlighten us if its available to purchase by the quart. I know he filled mine from a gear oil drum.

 

So is it better to go all the way 75-90w on all the drivetrain?

 

Valvoline Synpower 75w/90 is workin great for me in the transfer case and tranny........ havnt changed the rear diff fluid yet.

Jason

 

Still can't find Shell Helix tranny fluid. Pls help.

Ben

 

I have the same in mine and it seems to be doing its job

 

I did redline aswell and it smoothed it out signicantly. But that expensive oil sounds real nice.

 

GL4 - MT-90 in the tranny and GL5 - 75W-90 gearoil in the diffs.
Redline was definitely an improvement over the factory fill, however the shifting is a bit rough when cold. Once the tranny is warmed up it's smooth. The service manual calls for GL4 - 75W-85 or 75W-90 in the tranny. Next time around I'm going to put 2qts. of MT90 and 1qt. of MTL(75W-80)GL4 to see if this will improve shifting under cooler temps. If it works out well it would seem more suitable for those that like to run 1/4 mile drags with a car that's been sitting for awhile cooling down for smooth shifts without having to warm up the tranny. A tranny case full of MT90 seems better suited for track(road course) use and conditions when components are under extreme heat and use.

 

There are a few other threads out there about GL5 in the tranny. I am pretty sure the synchros are brass and GL5 is very bad in this situation. I believe that was the final decision on the subject. In fact I think someone toasted a gearbox by putting GL5 in and it didn't take very long.