1 1

Redline MT-90 synthetic gear oil

Redline MT-90 synthetic gear oil

$22.99 USD
$22.99 USD
Sale Sold out

SKU

10-26020

Instructions

Instructions are not currently available.

Data

Emissions: Emissions do not apply.

There are no shipping restrictions on this item.

Warranty: none

View full details

Redline MT-90 is a great gearbox lubricant for 'boxes that have to work hard. It's not the best choice for street cars because it needs to be up to full temperature to work properly, but if you're doing a lot of track work or need a little more protection for your gearbox it's the one to choose.

Recommended for street and track driven NDs. For street NA/NB/NC cars we recommend MTL.

NB 6-speeds require two quarts, all other Miata transmissions require three quarts (the third quart is used in the shift turret).

Customer Reviews

Based on 3 reviews
100%
(3)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
Jonathan M.
Smoothed out my ND

Replaced factory fill at 10k miles. Shifting is noticeably smoother - highly recommended! I did need a little more than 2 quarts.

p
pedro55
MT-90 is much better than MTL for my MSM 6 speed.

MT-90 is the Mazda (and Red Line) recommended viscosity, and I agree.
The previous owner went with MTL (28000 miles) in the gearbox and I've always found 1st to 2nd notchy until the car was up to temperature.
I just installed MT-90 (61000 miles) and all is well.

R
Robert i.L.
This is the oil that Red Line recommends for a Miata 5 speed box.

The oil that Red Line recommends, on their website, for our gear boxes is MT-90 75W90 GL-4 gear oil. Our gear boxes were designed for convention (non-synthetic oils) and the clearances are relatively large, larger than for a modern box. A correspondingly heavier oil works well in our boxes, especially for severe applications and boosted cars.