amsoil users look here
Amsoil offers an additive, but they say you don't need it with Amsoil products. It's for use with other brands.
With the difference I noticed using Amsoil in the engine, I am anxious to try it out in the gears as well.
With the difference I noticed using Amsoil in the engine, I am anxious to try it out in the gears as well.
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From: Long Island, NY
im ordering the trans fluid today, still debating the diff/t-case, if so im gonna get the severe gear 75-90 forthe t/c and diff
Last edited by schred86; Oct 23, 2007 at 12:50 PM.
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Most people who'll tell ya only OEM in the t-case have probaly never used anything else.. Amsoil Severe Duty is specifically made for hypoidal gears such as our t-cases.. I used it without a hitch in my 05, and 06
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ok guys, i ordered the mtg 75w-90 for the tranny-3qts and svg(severe gear)75w-90 for the rear diff/transfercase-3qts, amsoil doesnt recommend addind any additives for this fluid either, the mtg is a gl-4 and the svg is a gl-5, i will post a write up of the change when i get around to doing so, also along w/ the full syn 10w-30 motor oil and eo-46 amsoil filter which i think is their new nano filters
Transmission problems - Amsoil?
I am a brainwashed Amsoil user and use it for engine oil changes in both of my vehicles. I put the Amsoil 75-90 in the transaxle of my '03 Evo soon after purchase (new). The shifting action was much improved.
After a few track days, the transmission started grinding on the 3-4 shift at high rpm. I took it to the dealer for warranty attention, but since there was no way to demonstrate a high rpm 3-4 shift on the street (oh yes, officer, I was demonstrating a transmission problem to the dealer that only occurs at 80-90mph when I shift into 4th), they blew off the complaint.
My opinion was/is that the Amsoil gear lubricant is/was too slick to provide enough friction for the synchros to match speeds between the gears. I went back to the factory lube and the problem was reduced but not gone. However, when I had the 3-4 synchro replaced, the mechanic told me that the '03s had a weak 3-4 synchro and replaced it with an updated part.
So, go figure...
Steve
After a few track days, the transmission started grinding on the 3-4 shift at high rpm. I took it to the dealer for warranty attention, but since there was no way to demonstrate a high rpm 3-4 shift on the street (oh yes, officer, I was demonstrating a transmission problem to the dealer that only occurs at 80-90mph when I shift into 4th), they blew off the complaint.
My opinion was/is that the Amsoil gear lubricant is/was too slick to provide enough friction for the synchros to match speeds between the gears. I went back to the factory lube and the problem was reduced but not gone. However, when I had the 3-4 synchro replaced, the mechanic told me that the '03s had a weak 3-4 synchro and replaced it with an updated part.
So, go figure...
Steve
Using the gear lube in the t-case and the rear diff atm the tranny fluid right now is gm synchromesh II but i'll probably switch that to amsoil with the next few rounds of oil changes.
I am a brainwashed Amsoil user and use it for engine oil changes in both of my vehicles. I put the Amsoil 75-90 in the transaxle of my '03 Evo soon after purchase (new). The shifting action was much improved.
After a few track days, the transmission started grinding on the 3-4 shift at high rpm. I took it to the dealer for warranty attention, but since there was no way to demonstrate a high rpm 3-4 shift on the street (oh yes, officer, I was demonstrating a transmission problem to the dealer that only occurs at 80-90mph when I shift into 4th), they blew off the complaint.
My opinion was/is that the Amsoil gear lubricant is/was too slick to provide enough friction for the synchros to match speeds between the gears. I went back to the factory lube and the problem was reduced but not gone. However, when I had the 3-4 synchro replaced, the mechanic told me that the '03s had a weak 3-4 synchro and replaced it with an updated part.
So, go figure...
Steve
After a few track days, the transmission started grinding on the 3-4 shift at high rpm. I took it to the dealer for warranty attention, but since there was no way to demonstrate a high rpm 3-4 shift on the street (oh yes, officer, I was demonstrating a transmission problem to the dealer that only occurs at 80-90mph when I shift into 4th), they blew off the complaint.
My opinion was/is that the Amsoil gear lubricant is/was too slick to provide enough friction for the synchros to match speeds between the gears. I went back to the factory lube and the problem was reduced but not gone. However, when I had the 3-4 synchro replaced, the mechanic told me that the '03s had a weak 3-4 synchro and replaced it with an updated part.
So, go figure...
Steve