mrevo10

After reading over and over again about recommended fluids for an Evo X I thought I would throw this out there.

- It seems OEM fluids are the preferred route to take to if you want to be super-cautious.

However

- They are ridiculously OTT in price and not so easy to get hold of in Europe.

Due to the fact that the Evo X has been around for a while, technology over the years has provided us with more fluid options. Some will agree and some will disagree on whether we should use them or not...

But, as I was recently quoted by a tuner for the fluid alone (no brake fluid, no SST filter, no oil filter, no coolant) a grand total of 498 Euros ($554 USD) I thought holy sh*t servicing cost is super high, I would revive the question and get your advice on the below:

I can source all of the below fluids off the internet for a grand total of 260 Euros ($289 USD).

Engine oil - Motul 300v 5W40 (6 lts)
SST fluid - Motul DCTF (8 lts)
Transfer & Diff - Motul Gear 300 75W90 (2 lts)
Diff & AYC/ACD - Motul ATF (2 lt).

I don't track the car a lot, maybe twice a year, however I do drive it hard through twisty mountain passes quite a lot. I like most Evo X owners wish to take good care of my car however saying that I would like to know if I could safely spend the extra cash on say a Dodson SST filter and maybe a set of new brake pads.

I will be changing all fluids myself as I don't trust the local garages.

Would I be correct to assume that my choice of the above fluids will live up to the job for daily driver that gets a good hammering every now and then.. Or should I go OEM fluids all the way to be super-cautious.

Fire away...

SPEC
2009 Evo X MR TC-SST with 70,000 kms (45,000 miles) on the clock.
Full TopSpeed Pro 1 turbo back exhaust.
HKS Drop in filter
HKS UICP
Tuned to 370 whp on stock 98 Octane pump gas.

LetsGetThisDone

iTrader: (1)

You only need 1L of ATF for the torque mechanism side of the rear diff.


Also, I would get a GL5 specific gear for the diff and tcase, they are very sensitive to have proper lubrication.


I would go by TRE's recommendations for the tcase.
http://teamrip.com/transfer_case_hyp...tion_info.html

mrevo10

Thanks a lot for your input, I would have missed that. The local tuner recommended 75W90 which is a GL-4/GL-5 and not specifically GL-5. Goes to show I can't even trust the local 'specialist'.

Biggiesacks

I have read many many threads on SST fluid and the overall consensus was to stick with OEM fluid. Here is a little excerpt from the SST fluid thread from another forum

From Kozmic27 (Kozmic Motorsports)

"I'm done with this thread that won't die. The number of clutch plates I've seen ruined by people not willing to run OEM fluid in their $10000 transmission is endless. The number of transmissions that have had their issues fixed simply by switching back to OEM fluid is nearly as endless. I make ZERO money selling OEM fluid, however I still ONLY recommend OEM fluid. Fortunately once the clutch plates are ruined, I do make money selling those, so keep trying to save $100 maintaining a finicky $10000 transmission. I will gladly repair your transmission once it is ruined."

http://www.evoxforums.com/forums/sho...=57355&page=61

LetsGetThisDone

iTrader: (1)

And I would make doubly sure that Motul DCTF is an approved replacement for the Diaqueen SSTF. The wrong fluid in the SST can lead to a myriad of expensive issues.

mrevo10

Yes I certainly agree in using the approved replacement. It seems however that Diaqueen may only be a marketing ploy by Mitsubishi and in fact the exact same oil is called other names by other companies

I found this thread:
https://www.evolutionm.net/forums/mi...sst-fluid.html

And on Motuls website Motul DCTF Multi states that it is Diaqueen SSTF-1
https://www.motul.com/system/product...pdf?1447094036

Biggiesacks

That's literally the same thread I linked warning against non oem

mrevo10

You're completely right, 63 pages in that thread and I concluded that majority rules and DiaQueen would be the safe but expensive the way to go.

However if DiaQueen is also called BOT 341, Pentosin FFL-2 or DCTF Multi (but 4 times the price due to a Mitsubishi marketing ploy) then would I be safe to assume that it is worth the saving.

Quote by RazorLab
"Seriously, how many times, in how many different threads, did I say that fluid was the same?
Nobody should ever listen to me.
Pentosin FFL-2 is the same, and cheaper. You can find it for $15/L"

LetsGetThisDone

iTrader: (1)

That's great and all, and I even like Razorlab, he seems like a cool dude. But fi for some reason that fluid ruins your trans, is Razorlab going to replace your trans?


Marketing ploy or not, I paid the extra money for mitsu fluid for my GF's MR. Well worth the peace of mind that it is guaranteed to not cause issues.

mrevo10

Everyones input is duly appreciated, and thats the reason I asked in the first place. Thanks.

Conclusion:
If my Evo was low km's and under warranty and I had to stick to OEM fluids then I would have no choice BUT to use DiaQueen. However it is now becoming increasingly clearer to me that "only using DiaQueen" was a tactic created by Mitsubishi to sting you.
I myself would prefer to use a less expensive equivalent yet exactly the same product and change my fluid and filter more often. Hell, at that price I can afford to fly RazorLab over and get him to do it for me.

LetsGetThisDone

iTrader: (1)

It's your trans I guess.

jamdread

Incorrect - But if you want to save a couple hundred on fluid and risk screwing up the clutches on your $10k transmission then hats off to you sir

Biggiesacks

Lets be honest, if the quote i posted from Kozmic didn't change your mind at least on the SST fluid, then you made up your mind before posting here.

RazorLab

iTrader: (8)

That was a long time ago. Now I stand behind OEM only.

LetsGetThisDone

iTrader: (1)

Mic drop....






lol