Hey guys. I'm new to evom and currently am driving/racing an MSP which i've sold and have been wanting an evo 9 for over a year now and that's what I'm getting as soon as I find the right one. I'm just researching as much info as I can at this point and have done a bunch of reading before posting anything. Do the evo 9 trannies use a GL-4,75w-90 gear lube? Also it seems like from reading through this thread that most ppl that are DD/autox use a 10w-30 oil for the motor. Thanks and I know the search button is my friend I just wanted some personal feedback.

 

If you're looking for an MR, the 6 speed transmission uses a 75W-85 GL-4. The 5 speed uses a 75W-90.

 

^Thanks man. Glad I asked.

 

Jacks suggest the 6 speed oil for the 5 speed along or Redline MT90. I think the other tranny builders also suggest Redline.

http://www.jackstransmissions.com/pages/oil

 

Amsoil MTG has worked great for our customers.

 

Wow, it took 11 pages before Motul got mentioned! Have a look at Motul 300v Competition

 

In my engine Mobil1 has just barely delivered the best protection/wear for the main and rod bearings. This is compared to Pennzoil racing, Royal Purple, and Valvoline Racing. The Mobil1 is just slightly better, but enough to notice on teardowns. When I had some clearances a little too tight it was on a 1-track-outing inspection interval.

Kevin

 

No experience with Castrol?

 

Which weight?

 

Yeah, I wonder the same thing.

 

I have used the 5W-40 Ultra and it held up well in the tropics. Ultra is Ferrari factory fill. However, I wouldn't run 10W-60 unless doing strictly sustained highspeed driving in extremely hot weather or on a built stroker motor with relatively loose tolerances.

The heavier weight oils do absorb more heat though. So oil temps will tend to be lower. I found this true when I ran Mobil1 5W-50. What I don't like about the 5W-50's and the 10W-60's is the spread between the upper and lower vicosities which requires higher levels of stabilizing additives.

Also, the thicker stuff tends to be a bit more problematic on cold startups and with the lifters.

 

I have no experiences with Castrol. I run either 15w50 or 20w50.

Kevin

 

my last car I ran agip 10w40, or 10w60. I cant remember, it was a while ago. I liked it, but was hard to get. For the price I would rather use amsoil anyhow, much better oil, imo.

 

Okay, thats the racing M1, non-SM spec which has more ZDDP. Good stuff.

I still won't use any SM spec oil (10w-30, 10w-40) with the lower ZDDP content. Federal guidelines are suppose to regulate it to 800 max so your catalytic converter can last longer.

 

Just to clarify, the Mobil 1 15w-50 you can buy anywhere carries an "SL" rating and contains 1200ppm ZDDP. The 0w-40 contains 1000 ppm.