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The 2008 SST units in Canada had issues with their mechatronic units and were changed out under warranty, this was the first year for the Evo X and some teething troubles were found.
The key is more frequent SST fluid and filter changes if you drive aggressively to clean out the worn clutch plate material, the gears should only spall a lot on the first break-in as they bed themselves, so keep an eye on your magnetic plug trapped material, if it gets chunky you've got other issues.
The mechatronic unit PCB is what has been getting fried with some fluids that may be too conductive, but that is in part due to the metal shavings in the SST fluid from the gears wearing. If the fluid cause excessive wear on the gears you're going to have issues regardless.
Good maintenance is key to prolonging the life of the SST.
Yea looking to due a full drivetrain fluid change..gonna looking under this week to see any leaks..haven't seen any spots on the driveway. Good so far, but anyways ill look for those sign when I'm draining it.
MOTUL is was I'm interested in but after redline I'm double thinking....the way I drive this car I'll might need to change it out every 20k. Lol
Some of the vendors on another forum that I am a member of suggested to only use the factory fluids. You could contact Jacks Transmission or SSP to see what they say is best to use for the SST cars.
I spoke with my main parts supplier yesterday and asked the question wrt. Redline DCTF versus Diaqueen. He stated that he has sold over 190 quarts of Redline DCTF since it was added to his inventory, which equates to about 24 Evos changing their fluids to Redline. Not one Evo SST owner had provided negative feedback to him on using the Redline fluid.
I know that the main SST repairers state Diaqueen as the only fluid to use, but I'm going based on user feedback here and staying with Redline...
24 Evos? How long ago did he add it to inventory? How much contact has he had with them since the service? How many miles have they put on since the change?
That's hardly usable data, especially compared to the number of services performed at dealerships and these "main SST repairers' shops. These are thousands of cars over the past 9 years. They use it for a reason, because they are maintaining or fixing transmissions that have had issues, including those resulting from incorrect oil usage. Not to say there aren't failures while using OEM fluid, but (once maintenance intervals were properly revised) the number is considerably less when discussing fluid-related failure.
Originally Posted by EVOX530
Ive seen Kozmic on only using OEM fluid and thousands of dollars on repairs is what mostly i seen from him and others on different threads.
Yes, they are doing maintenance, minor, and major repairs AND using/recommending OEM fluid. The fact that they are the go-to name in the SST game right now should speak to more than just their rebuilding abilities. They specialize in the SST and they have put in the time and research to determine what they think is the best possible solution for the vehicle.
Originally Posted by kikiturbo
we use motul DCT fluid over here and woks well.. much cheaper than OEM stuff.
When you talk about mitsubishi knowing best, bear in mind that the OE service intervals for SST are stupidly long which has a lot to do with the problems people have with it....
it says that it fits the Diamond Queen SSTF-1 standard... so we had no questions about using it.. People in EU also use it in the GTR, so you can check their forums for more info. One of the two cars I see on regular bassis with this oil has been on track and the report was that it still shifts nice when hot so I have no problems using this oil in the SST..
as I said before.. regardless of oil, I would change it every 20000 km tops..
OEM service intervals started off much longer than they should have been. Agreed. That combined with aggressive driving is the #1 cause of almost all early failures, and a solid percentage of those we continue to see popping up. Mitsubishi has, however, revised their scheduling and made it a point to emphasize the need for a filter change at every service interval (which was also originally excluded, leading to further issues early on).
That spec sheet for Motul actually shows that it does NOT have the same qualities as the OEM fluid, but that it falls short in almost every category. For reference to SSTF-1 spec you can use the Castrol Transmax BOT 341 data sheet.
As far as GTR is concerned, it is a completely different transmission and they have been proven to be much more forgiving when it comes to different fluid usage, relative to the Mitsu TC-SST, so it's not a fair comparison to make. This has been confirmed by multiple shops and tuners that work with both platforms regularly.
Originally Posted by EVOX530
Yea looking to due a full drivetrain fluid change..gonna looking under this week to see any leaks..haven't seen any spots on the driveway. Good so far, but anyways ill look for those sign when I'm draining it.
MOTUL is was I'm interested in but after redline I'm double thinking....the way I drive this car I'll might need to change it out every 20k. Lol
I always recommend 20-30k miles should be the absolute maximum interval for anyone who owns these cars and drives it in any sort of spirited fashion. Even at the dealership here it's recommended at 30k, though I personally do it once a year.
Originally Posted by 2015_MR
Some of the vendors on another forum that I am a member of suggested to only use the factory fluids. You could contact Jacks Transmission or SSP to see what they say is best to use for the SST cars.
If you are going to ask a SST-specific specialist shop, I strongly recommend Kosmic as the first source you choose. There are other capable shops/businesses in practice, but their accomplishments and experience should be reason enough to start your searching there.
Last edited by 03chi-town0Z; Feb 13, 2017 at 08:52 PM.
Reason: accidental bold
They are used on a lot of Ford and Volvo cars too and Citroen C-Crosser and Peugeot 4007 as well (both are build by Mitsubishi and based on the Outlander). Prices here in Germany are starting at around 21 USD without VAT.
Jan 26, 2017, 06:33 AM
