Redline MTL synthetic gear oil
Redline MTL synthetic gear oil
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Description
Redline MTL is a 75w80 synthetic has been the go-to fluid for Miata owners since the beginning. Smooth, accurate shifting due to the special additives for the synchros. It's what we use in most of our own cars.
Pure track cars should use MT-90 - it's not as happy when it's cold, but it will deal better with the high temperatures of the track. We also recommend the MT-90 for ND Miatas, as it is very close to the stock formulation.
For maximum gearbox protection on hard-driven track cars, mix in a quart of Shockproof gear oil.
NB 6-speeds require two quarts, all other Miata transmissions require three quarts (the third quart is used in the shift turret).
We can only ship Redline inside the US, for international orders please see your local distributor.
Instructions
Instructions are not currently available.
Shipping
$9.99 flat rate shipping. Orders over $40 ship for free in the US!
Details
There are no shipping restrictions on this item.
What does it fit?
Fits: 1990-1997, 1999-2005, 2004-2005 MSM, 2006-2015, 2007-2015 PRHT
Emissions
Emissions do not apply.
Warranty
none
SKU
Worked great for a 95’ NA, smooth shifting is awesome!
Perhaps it's unfair to give a poor rating to a product that's not even recommended by either manufacturer.
Both Mazda & Red Line recommend 75W90 GL-4 for the Mazdaspeed MX-5, and I'll be staying with MT-90.
My gearbox is much happier now that I've replaced the 'old' MTL with 'fresh' MT-90.
My experience is the opposite to that of Flyin' Miata.
I used this on my NB1 6-speed transmission for the past two years. My shifts felt ever-so-slightly better than whatever came out of the transmission, but nothing to write home about. This fluid will get the job done satisfactorily. I would trust this over whatever you can find in an auto parts store.
Miata gear boxes were designed before synthetics were commonly used in gear boxes. Our boxes have large clearances, and Red Line currently recommends a heavier oil than this for our boxes. The oil that Red Line recommends, on their website, is MT-90 75W90 GL-4 gear oil. This said, many of us have used MTL for years, and have been fine with it.
The combination of this and the shockproof only lasted me 5 months. Now I gotta change the fluid because getting into gears is a little rough