5spd transmission fluid
- Thread starter jmauld
- Start date
- :
- '07 Mazda3, True red
first, go to the dealer. ask them to check your tranny. its a brand new car more or less...so you shouldn't have any problems, but i used redline in my mx6, and its nice!
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- 03' Silverado, 03' P5
I used redline MTL from www.myoilshop.com in my previous car (1994 Ford Probe GT) and it made a very noticeable difference. It makes the shifts more fluid and smooth especially in colder weather. I think the recommended interval is 30K, although it could probably go more like 60K before it really needed it. Since I have made the switch to sythetic oil, I am going ahead and switching to synthetic at 15K. Good luck.
- :
- 03' Silverado, 03' P5
Info...
The stuff below came from http://www.myoilshop.com/AutoPrds.html.
It should take right at 3 quarts if I remember correctly, maybe 2.9 or something. It is in the manual for sure though...
Hope this helps. They recommended MTL when I called about my P5...
MTL Manual Transmission Lubricant
A 75W/80W GL-4 gear oil (SAE 5W30/10W30 engine oil viscosity) designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.
RED LINE MTL and MT-90 are designed to provide excellent protection and improved shiftability for manual transmissions and transaxles. MTL and MT-90 have cured the problem of hard shifting in numerous transmissions which have notoriously difficult shifting. The secret to their success is two-fold. First, they have the appropriate coefficient of friction for most manual transmission synchronizers. Many gear oils, engine oils, and ATFs are too slippery for proper synchro engagement. Secondly, the viscosity characteristics of MTL and MT-90 allow proper shifting over the entire temperature range which the transmission will experience. The synthetic base oils used have a very high viscosity index which provides relatively constant viscosity as temperature changes. MTL is a low 75W, almost a 70W, at very low temperatures and a high 80W, nearly an 85W, at elevated temperatures, providing adequate viscosity to prevent wear and deaden gear noise. MT-90 is a thicker 75W90 version of MTL. The shear stability and oxidation stability of these products are excellent, thus the physical characteristics of Red Line MTL and MT-90 will change little with use.
Red Line MTL is classified as a 75W/80W gear lubricant satisfying the API Service requirements of GL-3 and GL-4. MTL also satisfies motor oil viscosities SAE 5W/10W/30, and the viscosity requirements for ATFs. MT-90 is a 75W90 GL-4 and also satisfies motor oil viscosities SAE 10W/15W/40. The additive chemistry used is non-corrosive, so even though they will provide GL-4 performance, they will not corrode synchros or bushings. Because of its low corrosivity, Red Line MTL and MT-90 could also be used in transmissions requiring GL-1 or GL-3 lubricants. Seal compatibility is designed to be similar to petroleum-based lubricants.
BENEFIT SUMMARY
Eliminates notchy shifting
Designed for manual transmissions and transaxles
Perfect synchronizer coefficient of friction
Enables high-speed downshifting
Excellent shifting even when cold
Eliminates gear whine and rattle at high temperatures
High-performance gear protection
Non-corrosive toward synchronizers
Satisfies manual transmissions and transaxles requiring motor oils or GL-1, GL-3, or GL-4 gear oils.
IMPROVES SHIFTING
Red Line MTL and MT-90 are able to improve shifting in most manual transmissions and transaxles. They provide a relatively constant viscosity as temperature changes and provides the proper coefficient of friction to allow synchronizer engagement. Most gear oils are very viscous at lower temperatures. This higher viscosity requires increased shift effort to move the synchronizer gears with the shift fork and to squeeze the oil from between the synchronizer cone and the mating surface attached to the gear. Without contact of these two surfaces, the gear speeds will not be synchronized and locking of the synchromesh gears will not occur. Excessive viscosity results in a longer time required to synchronize before locking occurs.
The stuff below came from http://www.myoilshop.com/AutoPrds.html.
It should take right at 3 quarts if I remember correctly, maybe 2.9 or something. It is in the manual for sure though...
Hope this helps. They recommended MTL when I called about my P5... MTL Manual Transmission Lubricant
A 75W/80W GL-4 gear oil (SAE 5W30/10W30 engine oil viscosity) designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.
RED LINE MTL and MT-90 are designed to provide excellent protection and improved shiftability for manual transmissions and transaxles. MTL and MT-90 have cured the problem of hard shifting in numerous transmissions which have notoriously difficult shifting. The secret to their success is two-fold. First, they have the appropriate coefficient of friction for most manual transmission synchronizers. Many gear oils, engine oils, and ATFs are too slippery for proper synchro engagement. Secondly, the viscosity characteristics of MTL and MT-90 allow proper shifting over the entire temperature range which the transmission will experience. The synthetic base oils used have a very high viscosity index which provides relatively constant viscosity as temperature changes. MTL is a low 75W, almost a 70W, at very low temperatures and a high 80W, nearly an 85W, at elevated temperatures, providing adequate viscosity to prevent wear and deaden gear noise. MT-90 is a thicker 75W90 version of MTL. The shear stability and oxidation stability of these products are excellent, thus the physical characteristics of Red Line MTL and MT-90 will change little with use.
Red Line MTL is classified as a 75W/80W gear lubricant satisfying the API Service requirements of GL-3 and GL-4. MTL also satisfies motor oil viscosities SAE 5W/10W/30, and the viscosity requirements for ATFs. MT-90 is a 75W90 GL-4 and also satisfies motor oil viscosities SAE 10W/15W/40. The additive chemistry used is non-corrosive, so even though they will provide GL-4 performance, they will not corrode synchros or bushings. Because of its low corrosivity, Red Line MTL and MT-90 could also be used in transmissions requiring GL-1 or GL-3 lubricants. Seal compatibility is designed to be similar to petroleum-based lubricants.
BENEFIT SUMMARY
Eliminates notchy shifting
Designed for manual transmissions and transaxles
Perfect synchronizer coefficient of friction
Enables high-speed downshifting
Excellent shifting even when cold
Eliminates gear whine and rattle at high temperatures
High-performance gear protection
Non-corrosive toward synchronizers
Satisfies manual transmissions and transaxles requiring motor oils or GL-1, GL-3, or GL-4 gear oils.
IMPROVES SHIFTING
Red Line MTL and MT-90 are able to improve shifting in most manual transmissions and transaxles. They provide a relatively constant viscosity as temperature changes and provides the proper coefficient of friction to allow synchronizer engagement. Most gear oils are very viscous at lower temperatures. This higher viscosity requires increased shift effort to move the synchronizer gears with the shift fork and to squeeze the oil from between the synchronizer cone and the mating surface attached to the gear. Without contact of these two surfaces, the gear speeds will not be synchronized and locking of the synchromesh gears will not occur. Excessive viscosity results in a longer time required to synchronize before locking occurs.
mazdamp3_18
Member
- :
- 06 gti, 06 evo IX
AMSOIL
i would prefer amsoil to use as manual tranny fluid... im switching my car over to that soon... on a manual car you usually dont need to change the fluid... but im going to amsoil because i had it in my VW golf TDI and i loved it... but dont get me wrong redline makes some very good stuff too... anyone should go with either amsoil or redline... i have amsoil oil in my car also and i could tell a huge difference and you can go 25k miles on it.... which is a huge money saver ....
i would prefer amsoil to use as manual tranny fluid... im switching my car over to that soon... on a manual car you usually dont need to change the fluid... but im going to amsoil because i had it in my VW golf TDI and i loved it... but dont get me wrong redline makes some very good stuff too... anyone should go with either amsoil or redline... i have amsoil oil in my car also and i could tell a huge difference and you can go 25k miles on it.... which is a huge money saver ....
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