TRIAX Synergy Gear MT 75W-90 GL-4 (MT-90); Full Synthetic Manual Trans Fluid; Smooth Shifting; No Sticking, Slipping, Vibration, or Shudder; Yellow Metal Safe (1 Quart)

I normal run Redline on my vehicles, but the prices has skyrocketed lately. This is a great alternative to MT90 with zero downsides. The shifts are great, even when it's cold. It's not identical to Redline, but I prefer the shift feel when running this fluid. I wouldn't trust the warranty on the bottle though, I would recommend changing the fluid every 20K miles.

Was noticing difficulty getting into 4th gear lately (215k miles on the truck), changed the oil out with this stuff and so far seems to shift into 4th normally again. Hope it stays that way! Don't want to have to rebuild my synchros yet. As far as I know, this is the only other GL4 75w-90 other than Redline and this is half the cost which is awesome. It also seems to have performed at or better than Redline because even using Redline I was having issues going into 4th gear easily.Update: Unfortunately, did not fully remediate my issue getting into fourth gea. Still some difficulty. Was worth a shot, though. Will still use this oil in my transmission from now on

Jeep transmission required a special oil that was super expensive, but this oil met the specifications of the recommended oil at half the price. This oil improved the shifting and eliminated the noise altogether. My jeeps’ transmission loved this oil.

The Tacoma forums are full of elitist clowns who love to spout how great Redline is... Unfortunately, time and time again modern society proves to value expense over function. It's mind boggling.This is not that.This stuff works. I recently bought my first Toyota truck, a well cared for 2002 5 lug Tacoma with 132k miles. I change fluids in everything I buy so I went to the forums and what did I see? Redline Redline Redline. Yeah? Well Redline is $90 a gallon so Redline can get bent. Once again proving fools and their money are easily separated.So I did more research, read about gl4 vs gl5, with GL-4 being yellow metals safe & all that. Turns out not a lot of companies produce GL-4. Wasn't gonna get "trained" for a $90 gallon of gear lube so I decided to go with this stuff.Whats crazy is when I dumped the "old" fluid it was nearly crystal clear, demonstrating it had clearly been serviced recently, most likely just before I bought it. What's even crazier is the immediate difference it made switching to the TRIAX. From the 1st shift out of the driveway it felt different, smoother. It also took that cold morning notchiness right out of the stick. Buttery smooth shifts up and down. It's just a fantastic product that produces the results it advertises. Isnt that refreshing? I think so.Put it this way, my stick slides into gear way smoother than Redlines stick is sliding in your rear when you pay $90 a gallon, you can bet your sphincter on that.

Worked great shifts like a dream in my 2007 Toyota corolla with 300,000 miles + on it.

IF YOU ARE GOING TO USE A PUMP TO FILL YOUR RIG , THIS BOTTLE HAS A DIFFERENT MOUTH THAN THE OTHERS . ITS NOT A QUART SIZE AND ITS NOT A GALLON SIZE . ITS CUT TO FIT & ONCE ITS CUT IT CAN NOT BE CAPPED AGAIN . ITS GREAT OIL FOR THE PRICE.

Was skeptical with this brand and did not have much expectation other than it being a new fluid over near several year old fluid in my old vehicles.Changed out the fluid in a 2008 FJ Cruiser that had 5th gear synchro grind when I shifted quickly every time.After the oil change, it no longer grinds at all. I also feel that the shift feels lighter and smoother when I am hurrying through gears.I also swapped out the fluid for Mini Cooper R50 manual transmission fluid. They are supposedly life time fluid so it has not been changed for for 15 years or 50K miles I owned. The old fluid came out looked fine but the effort for the shifting is noticeably smoother.Compared to other fluid that are synthetic and rated for GL4 are almost double the cost of this brand.If you need GL4 rated fluid, I wouldn't hesitate using this oil/brand.

Works fine but no difference from the old oil I drained out