Mitsubishi Lancer Evolution Forum banner

WTF so many answers?????? When to change sst oil?

10792 Views 8 Replies 8 Participants Last post by  jake92695
First and formost I'm sure this tread has probally been done about 1Million times. So im probally beating a dead horse:whipping:, but here it goes....

I am at 4500 on my new 2011 EVO MR and I called the best rated dealership around here (D.C.) to scheldule all of my of drive train fluids changed (due to break-in) and the dealership told me I was F-ing crazy to change trans, TC, and Diff fluid this early!! He said that the diff and TC are good to 30k and the transmission was good until 60k!!!! That's why the fluid is so expensive. So I just schelduled a motor oil change and told him that I would look into it futher. Upon doing that I have found about 50 diffrent mileage quote's over the internet so here I am...Do we have a SST matter expert to chime in or what other people changed there's at??

Also this is my DD and I am not raping the piss out of it
1 - 9 of 9 Posts
I'd like to chime in on this since we at SSP specialize in the SST Transmission, and install and repair more dual clutch transmissions then a vast majority of shops in the world. So first and foremost, do NOT trust what the dealership tells you regarding service intervals on your SST Transmission. There have been numerous occasions where customers (myself included) have been sold ATF fluid for there SST even after several attempts of telling them it's NOT the correct fluid. Heck, the dealership that sold me my MR told me the trans was NOT serviceable...period. The Evo techs are NOT trained to repair the SST in any way shape or form. All they do is diagnose when a problem occurs via the MUT tool, and either replace your trans under warranty...or not.

In regards to your question, when should I change my fluid? When buying a new SST I would highly suggest changing the fluid and filter at 1,250 miles. Just like Nissan does with the GT-R, and for good reason. Just like in a brand new motor, there are a crazy amount of moving parts that are machined to very high tolerances. All those parts are going to "break in" and "shed" material, and it has to go somewhere. It's either in your fluid, magnets, and or filter. And eventually, these particulates all end up going through the filter, and they DO build up over time and can cause pressure loss issues which cause poor/rough shifting. After you get the initial "break in" miles (1,250 miles) I'd suggest changing it every 25-30,000 miles for daily driving use, and every 10-15,000 for severe duty racing. And regardless if you're racing or driving to work and back, change your filter every 10,000 miles. OEM filters and or aftermarket filters are a fraction of the cost of a new SST, if you want your cars transmission to last.....change your fluid and filter in regularly scheduled intervals.

I've personally had countless customers call me WANTING to send in there transmission for full builds/repairs because they're car is shifting and driving so bad. My very first question is always "how many miles on the car, and when is the last time you've changed your fluid and filter". Most of them, in not all, usually reply " I haven't, the dealer told me not to...." About 95% of the time those customers just needed to change the fluid and filter and there car runs like new.

See less See more
I have no answer to the question, but I just want to commend you for acknowledging that you at least searched and couldn't find a definitive answer. Sure, this may be a rehashed topic, but at least you looked and tried instead of just starting another thread. Good luck on your quest.
I have no answer to the question, but I just want to commend you for acknowledging that you at least searched and couldn't find a definitive answer. Sure, this may be a rehashed topic, but at least you looked and tried instead of just starting another thread. Good luck on your quest.
Thanks :amen:
Ghost listen to SSP. Change it now and then change it at 30k service.
SSP supplied a good answer however I'd like to add that how often you change the fluid is not only dependent on if you daily drive or race but also how much power you have.

My first change I went 18,000 miles and my fluid looked clean, had no issues. This was on stock turbo with some bolt ons. My second change I again went 18,000 miles however I was on an FP Green with 430whp.. Second change wasn't so clean and was OVER due.
did mine at 10 k with only 1 autocross and 1 rallycross in the car and it looked clean. Now that I'm racing it more often, I'm planning to change all the drive line fluids every 10k. My car is basically stock power wise with only HFC, cat back and tune.
To avoid over servicing and under servicing, any suggestion on an inspection procedure to work out whether the fluid / filter needs changing?

One can inspect the fluid via the fill plug. If fluid is discoloured, it is time to change. But if colour looks ok, are there other indications short of sending the fluid to a lab? Since blackstone wants about 100ml then I probably have to get a 4L can just to replace the 100ml taken out.

And what about the filter if the fluid is OK. I assume removing the filter without draining the SST means fluid will leak out. If the fluid don't splash everywhere onto the outer surface of the SST, then they probably can be caught and reuse.

Anyone tried changing the filter without doing a fluid change and did you need some SSTF in hand to replace the fluid lost? What to look out for when inspecting the filter?
See less See more
There are a lot of costly service required for the EVO X, especially the MR. If you want it to last do the service and use OEM fluid. I just had my SST serviced with OEM fluid/filter at 9300 miles. I stayed away from the dealer all together and had it done at Moore Auto in Fairfax. it was costly, but I want my car to last. I will be seeing SSP when I get around to installing a new turbo. Will want a clutch upgrade.
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.