I want to hear feed back from Amsoil user that are using gear oil in the t-case and rear diff only! With the last drain I used redline shockproof heavy which is a 75w-250. Now I wanting to try the Amsoil in the drive line, and here's what I'm looking at:

SVG Severe Gear 75W-90
SVT Severe Gear 75W-110
SVO Severe Gear 75W-140
SRN Severe Gear SAE 190 (this is what I was thinking of using)
SRT Severe Gear SAE 250 (which AWD Motorsports uses)

I put 26k miles on my car last year and Drag Race every chance I get! I launched 150+ times last year.

 

the SRT 250, has been used in all 8 sec pases and dyno pulls on all their monster cars. I dont think they have had much TC and rear diff damage unlike many others out there running 750WHP + all the time.

But i will let the feed back speak for itself,,, we have sold to over 150 members in the past 2 months so there should be plenty guys to give you feedback

 

Which would be more appropriate for a daily driver 550whp car that gets raced and launched VERY often?

 

^^ i dont want to clutter this guys thread with sales and what not,,,, He wants feed back from people that have used our products.

Pm me with questions

 

i got it in my car.. a bit notchy in the cold but overall good stuff.

honestly can't tell the difference tho

but i recommend you try it out tho. i got 75w-90 in my car.

 

OP is asking for transfer case and rear diff, not tranny.

 

Reference

 

I use the SVG fluid in the diff and t-case personally. You may want a slightly higher rated oil like apagan01 recommended to handle the extra stress.

I put a lot of miles on my car and its driven everyday rain/snow/whatever so multi weights made the most sense to me. I don't do any drag racing everything here is highway pulls.

 

And the good part about multiviscocities is they start at cold as a 75 but lube as a 90 so that being said you always know you will have the lubrication of a 90 which will give you the best cushion between the ring and gear assy and you diff's spider gears during load, launches hard pulls ect...

also being a synthetic it will keep the internals cleaner and cooler

 

I think after doing research that I am going to try the SVO 75w-140 but more input would be great!

 

I agree about the imput ^^

 

The 75w-140 is what BMW and the GT-R run in the rear diff and t-case. And I have more WHP then them. The Redline Shockproof Light is also 75w-140.

 

I'm running both and actually all amsoil fluid in my car. I'm not sure what type of feedback you want but I can tell you that last year I must have launched the car 50 times went to the track twice. I DD my car and this past december took it with me to florida. I will be draining the fluids next week or so but the TC and Diff feel great.

 

SRN Severe Gear SAE 190
SRT Severe Gear SAE 250

I will be trying one of these, however, can I go wrong by just going with the SRT250 and not worrying about it?

 

really 140? hmmm... maybe i'll do the same, i recently got a cusco 1.5 type rs, only 380whp 370lb ft to the wheels tho