If you have only used one, post what you think about your shifts, mileage, etc... if you have used others post what you think about them? I had switched to AMSoil and while my OE fluid wasn't bad, I have seen some drain pics that didn't look to good. Anyway, this doesn't have to be a big nasty debate so please let's not try to get into it to much with each other. This is based solely on personal experience, not a friend or brother or anyone else.

 

I have AMSOIL. Me likey.

 

yeah, I feel like my shifting is better with it. I would try redline at some point, but the tranny produces much more wear with what AMSoil's results have said, but whether they are their own tests or independent I don't know.

 

There have been rave reviews with this 'redline cocktail' i think concocted by kracka? there should be a thread around here but with the coctail all grindy or notchy feelings have been dissipated..

 

I know redline makes a good product, but in tests it wears down much faster than AMSoil.

 

I have AMSoil in my car now...well not that it moves anywhere...but I am switching to Redline cocktail for when my car starts up again since I need more tranny fluid anyway.

Here is what Kracka said, he is a local, or was, but still is on our local boards:

The Amsoil is a 75W-90, Evo X spec is 75W-80 (for comparison, 8/9's call for 75W-85)

I thought the AMSoil was good, but seemed a bit...thick...and from what Kracka says it probably is unless you track the car.

 

thats all fine and dandy for a stock powered car thats is being driven with stock power.

But that goes out the window when you bolted a turboback, intake and a tune now you are all over 60-100 AWHP on your car.

So try and picture what is happening to that stock transmission and gears they will be meshing much more harder now because of the added power,,,, would you want an oil that holds the shear, and at the same time be able to flow fast to get to the critical parts of the tranny.
Or would you want a straight weight oil like Mitsu diamondqueen/diaqueen that takes a while to get warmed up and then being able to flow.

I reccomend you guys look at the specs of each oil, look at the most important factors in a oil's ability to hold heat, shear, and durability and mostly important able to be friendly with the syncros,,,,, look for NOAK VOLATILITY specs, FOUR BALL WEAR TEST specs, SHEAR STABILITY specs, for gear lubes FALEX TEST very important.

stay away from cocktails,,,, if you need to mix oils to make your own home made oil then that means you need a better oil, there could be many long term effect on mixing oils that you may not know of,,,,, why didn't redine or amsoil, or GM make a cocktail,,,, id explore to say they did the research and they have a little more knwledge than i do so why am i mixing oils



when your apllying that much hea

 

I am going to be well over double the stock output power on my new setup, but it just seemed like the AMSoil never got hot enough for me to warrant it.

I will think it over though.

 

Not sure what you mean by the oil did not get hot enough.

A fully synthetic fluid is suposed to run cooler than conventionals

 

I mean when i beat the **** outta it, it would shift how i want but regular driving it would feel sluggish as it seemed the oil was a bit thick.

Like I said, if i beat on it a lot it seemed to work great.

 

many folks report the same advantage you are, that when they shift hard and race the fluid seems to give them great shifting capability,,, thats telling you that the lubricity of this fluid is always there for your tranny, remember this 75w90 has many advantages flows as a 75 and lubes as a 90 oil, under cold it can move around because it runs as a 75 and under heat it can keep itself together as a 90.

you know and thats a good thing because remember evo trannys are known to be knotchy,, they have very aggresive syncros and thats good.

 

Redline cocktail for the X in my car which is 2xMTL and 1xMT90. Mixing these fluids is perfectly acceptable and recommended by Redline to meet the viscosity requirements of your car. I've tried a lot of tranny fluids but Redline has proven to be the best for me over the years. I've run it in 5 DSM's, S2000, my wife's WRX, my IX, and now my X. Best of all - never a tranny failure or worn out synchros in any of the transmissions!

Amsoil is a 75W-90 (same as MT90) which is why so many people complain about notchiness and grinding before being fully warmed up. While my transmission is good to go straight from the garage, my neighbor running Amsoil fluid in his X GSR said it takes ~5 miles for his to get up to temp and become smooth. His car is at ~7k miles and mine is at ~5k miles; I believe my Redline fluid has more miles on it than does his Amsoil. We both have short-shifter + bushings kits.

 

I'd be very surprised if anyone could tell the difference between an 80 weight and a 90 weight oil.

I've messed with silicon oils a ton with my RC Car racing that I did for 20 years. Silicon does not change viscosity with heat. Trust me, the difference in 10 weight from 80 to 90 is barely barely noticeable. And this is when trying to force it through 3 tiny holes.

 

[QUOTE=Golden;8560293]I'd be very surprised if anyone could tell the difference between an 80 weight and a 90 weight oil.

QUOTE]

I fully agree specially on a multiviscocity oil like 75w90,,, thats why i shake my head when i read folks writting that OEM reccomends 75w85 75w80 and the 90 is not benefitial when it has prved over and over by hundreds of 75w90 users to be benefitial,, well the fact is that the 90 is reccomended by the aftermarket manufacturers,,,

dang for that matter i have customers running 75w140 running 10 sec pases, some would wonder how the heck the tranny shifts well the answer is in the first number the 75 is the buzzword.

 

i havn't tried amsoil, but redline cocktail seems pretty good.. it made a nice improvement over stock...