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Redline MTL synthetic gear oil

Redline MTL synthetic gear oil
Redline MTL synthetic gear oil
The favorite gear oil of Miata owners.

Made in the USA

Availability: In stock



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.

Additional Information

Additional Information

Part number M10-26000
Fits: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004 (non-MSM), 2005 (non-MSM), MSM, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
Manufacturer No
Flyin' Miata exclusive No
Fits Exocet? Yes
Proposition 65 Warning: Cancer and reproductive harm
California emissions No

Customer Reviews 4 item(s)

Not bad
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.
Review by Kibbles / (Posted on 7/7/2019)
Works fine, but Red Line recommends, on their website, is MT-90 75W90 GL-4 gear oil.
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.
Review by Robert in LA / (Posted on 1/30/2019)
Wouldn’t recommend 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
Review by Adrian / (Posted on 1/26/2019)
Tried this alone and in combination with Redline's Shockproof Gear Oil, and both resulted in better gearbox action than stock fluid (only slightly) but neither compare to Motorcraft Manual transmission fluid. Talking to other Miata owners and searching the forums, you'll find the Motorcraft fluid is actually the favorite of Miata owners and for good reason! It noticeably improved the shifting action of my 200,000+ mile transmission.
Review by Ian / (Posted on 10/25/2018)
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