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Thread: Whichl manual transmission fluid is best to use?

  1. #1
    Registered Member speed3_07's Avatar

    2007 mazdaspeed 3

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    Whichl manual transmission fluid is best to use?

    my MS3 is almost at 45000 and its about time to change the trans fluid.
    i have been looking around the forum but have not found any for sure answers. not sure to use mazda oem fluild or what?
    Need help please

  2. #2
    Scrooge McDuck WillD's Avatar
    MS3, Miata & PVB Moderator

    WR Blue 2013 WRX STi, Classic Red 1991 Miata

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    I'm not normally one to do this, but literally two threads down the page is this: http://www.mazdas247.com/forum/showt...ge-trans-fluid

    In which several people, including me, recommend the Motorcraft Fully Synthetic MT Fluid from Ford.
    Will
    1991 Classic Red Mazda Miata | Pictures | Thread - 2013 WR Blue Pearl Subaru WRX STi | Pictures | Thread

    2008 True Red MazdaSpeed3 GT (Sold: 1-18-2013)

  3. #3
    Registered Member speed3_07's Avatar

    2007 mazdaspeed 3

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    ya just wanted to see if there were any other recommended fluids

    and thanks for replying back
    Last edited by speed3_07; 02-08-2012 at 12:26 AM.

  4. #4
    Registered Member Russm's Avatar

    08 MS3

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    Use Motorcraft in 08 MS3 with 81K on odometer and this is first winter in Wisconsin that I haven't had the noise and super hard shift into 2nd normally expweianced in WI winters..

  5. #5
    King Kokanee skallen's Avatar

    2007 Mazdaspeed 3

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    I got brutal 1st to 2nd gear hard shift. You can literally hear the grind every morning. Haven't changed the fluid yet, but I will. Canadian winters suck! My car has 58,000KM....so it's time to change the gear fluid.
    Cobb SRI, TRZ Rear Mount, Progress RSB

  6. #6
    Registered Member Wurf's Avatar

    2009 Mazdaspeed3 GT metro grey

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    Motorcraft Synthetic Manual Trans results feedback:

    Picked up my car yesterday after having the Motorcraft XT-M5-QS Synthetic put in it.
    Right out the parking lot I put it in first and drove around slowly with the radio off.
    I made some turns from lock to lock, on and off throttle listening for noise.
    The gear noise from the diff seemed more quiet and shifting is about the same but slightly smoother and easier.
    All I have is a SURE RMM no other bushing upgrades or mods.

    First cold drive this morning. Shifting into second was my only minor gripe previously. It would almost always grind just a little bit when cold.
    Now it's better, but not a lot different when stone cold. Happened to me right after leaving my driveway and then never again on the way to work.
    It improved almost immediately once there was some heat in the motor so I'd say it was worth the $70 ( plus tax ) for the Motorcraft stuff.

    Actually what's more remarkable is the smoother idle after the oil change! I was running Castrol GTX synthetic and only had 3700 miles on it. I put Mobil1 Super Synthetic in it this time as it was less expensive by about $4 for the 5qt jug at Walmart. Idling at lights is surprisingly smoother now. I've never noticed that before.

  7. #7
    Registered Member Wurf's Avatar

    2009 Mazdaspeed3 GT metro grey

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    Further feedback.
    Reverse is MUCH quieter. Like amazingly less noise from the diff.
    Second gear is now about the same as it was before. If I don't want grind when cold, I need to double clutch for the first few miles.
    It's better in less time than before however.

  8. #8
    Registered Member meicalnissyen's Avatar

    07 BM GT

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    Im having a Yogi Berra moment










    Cuz its like Dejevu , all over again
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  9. #9
    Registered Member ericrapp's Avatar

    mazdaspeed 3 cosmic boo

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    Cool

    i use redline mt 90 but i only drive warm weather. the motorcraft is assumed the best product. i have changed my fluid once from stock and twice more just to see. and i am clean as a whistle when last changed at about 68k when i replaced axle shaft

  10. #10
    Registered Member

    Mazda, MS3

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    Finally bought some Motorcraft. Holy crap is it expensive!

    Will change it this weekend at 45k

  11. #11
    BigDaddyMS3

    Mazda, Speed3

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    Smile

    My local Ford dealer has it for $22 @ quart. The odometer just hit 40K after five years so I'll start saving money now for the next five year interval.
    The James Barone Racing short shift kit plate and Sure RMM really made the 1-2 shift like budda' especially above 60' fahrenheit or when warmed up.

  12. #12
    Registered Member ericrapp's Avatar

    mazdaspeed 3 cosmic boo

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    Happiness is a good 2-3 shift!!
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