Also zero grinds and upon draining at 5k miles there was no tell-tale synchro glitter or metal particles to indicate anything other then a healthy transmission. The synchro’s seem to love it as they quiet down and just all around seem to function faster especially when cold and on downshifts.
![redline mt90 redline mt90](https://cdn.snsimg.carview.co.jp/minkara/note/000/003/505/557/3505557/p1.jpg)
No notch when cold, no notch when hot or pushed hard, buttery smooth up shifts and really nice downshifts even if you’re lazy and aren’t rev matching. This mix was tested in both my 06’G35 and my 09’ G37 and the results are like the best of both worlds. I mix 1 Quart Redline MT90, 1 Quart Redline MTL and 1 Quart of Amsoil Synthetic Synchromesh Fluid. Now for the not so mainstream answer and for the best shifting fluid I’ve ever come up with for all weather and all purpose use. Definitely not for cold weather use.Ģ quart MTL + 1 quarts MT90 which is not as good as the 50/50 mix.Ģ quarts MT90 + 1 quart MTL which is a better alternative for a mainly street driven car then straight MT90. I wouldn’t us straight MT90 unless you live where the temperature remains fairly high year round so warmup isn’t as much of an issue or if you track the car regularly. While cold the downshifting was much worse then MTL. Downshifting was exceptional once warmed up over MTL or Nissan fluid. When pushing hard or on really hot days it maintained good shifting no matter how hard you pushed. The colder it is overnight the worse it’ll be. Much notchier then straight MTL in the morning and takes longer to warm up. Cold downshifting was somewhat worse then stock or MTL.ģ.) MT85 Straight - No surprise here it performed pretty much exactly like #2 the 50/50 mix as that is all Redline has done to make its in-between formula. Downshifting was much improved once warmed up over MTL or Nissan fluid. When pushing hard or on really hot days it maintained its good shifting qualities with very minimal notch at high RPM. Down shifting was ok but no significant improvement over Nissan fluid.Ī little notchier then straight MTL in the morning for the first few blocks but warmed up quickly giving nice smooth shifts. Once the trans started getting hot it would get notchy quick and you could feel slight gear nibble at high RPM before it meshed the next gear. This fluid is less slippery for improved synchronizer coefficient of friction and offers stronger film strength for better wear protection.I've run multiple fluids through my 350Z/G35 and 370ZG37 transmissions for testing including 3 of the Redline MT oils both straight or in mixes.įelt good when cold, shifted smooth without notch under normal driving until you pushed it hard. This shear-stable formula resists breakdown for extended periods and offers more consistent viscosity in warm and cold temperatures for less gear noise and improved shifting.
#Redline mt90 manual#
RED LINE MT-90 HIGH-PERFORMANCE GEAR OIL is a fully-synthetic ester-based lubricant designed for use in manual transmissions and front-wheel-drive transaxles. MTL & MT-90 are not for use in differentials with hypoid gearsĮxcellent gear and synchro protection, balanced slipperiness for easier shifting in cold climatesĮxcellent for high- and low-mile transmissionsĬompatible with petroleums and other synthetics Red Line offers lubricants to pinpoint nearly every transmission application Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specifiedĪBOUT RED LINE GEAR OIL FOR MANUAL TRANSMISSIONSĪppropriate coefficient of friction for most manual transmission synchronizers (other's synthetic gear oils are often too slippery for proper synchro engagement) Satisfies the gear oil viscosity requirements of 75W90, 80W90, 90 and motor oil viscosities of SAE 40, 10W40, and 15W40
![redline mt90 redline mt90](https://www.fcpeuro.com/public/assets/products/279419/large/kit-50304.jpg)
High performance gear protection and longer synchro lifeĮliminates notchy shifting, even when cold Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage Offers quicker shifts, perfect synchronizer coefficient of friction Popular in Nissan, Mazda, Mitsubishi, VW/Audi, Lotus Elise/Exige, Toyota, Mendeola transmissions and Atlas transfer cases for Off Road It p rovides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.ħ5W90 GL-4 gear oil (similar to SAE 5W40/10W40 engine oil viscosity) This is a 75W90 GL-4 Gear Oil that's slightly heavier than MTL.