Red Line MTL Manual Transmission Oil- Pack of 4 Quarts

Shift smoother

This is supposed to be the best recommend GL-4 trans fluid for jeeps with the 2.5L and 5 speed trans. I changed my factory fluid out just because of age and moisture build up. The old fluid seemed fine still but this oil did infact make it shift a little easier. Mine never had a real problem shifting but it still made it very smooth. And this will not deteriorate the synchronizers like the new fluid will. Don't use GL-5. Use this stuff.

I recently had issues with my NV3550 making noise and shifting rather difficult at times. Flushed my transmission and installed this fluid and wow what a difference. Shifts like it's new and no more grinding when shifting. Highly recommend for Jeep TJs with manual transmissions.

So here's the story. I have a 2007 Honda Civic with the 5 speed manual trans. It's a good daily driver all told. At about 90k miles it started getting tough to get into second gear. Sometimes the synchro refused to spin up the gear before engaging leading to destructive "gear" grinding, other times the blocking ring would not get out of the way of the dog clutch teeth. It quickly got worse to where 2nd was practically unusable at 95k. Damn!! A Google search showed that I was not alone; in fact I was part of a huge mob of unhappy Civic owners. A reman trans with installation will ding you roughly $3000 USD plus or minus (and that's without a new clutch and throwout bearing which you'll want to do if you're in there). For a 10-ish y.o. car that made me gag, and quite unhappy too. The specified oil change interval is 120k miles so I wasn't there yet.The Honda fan boys who had the same problem said that draining the trans oil and refilling with the specified Honda lube did nothing beneficial (except putting a few bucks into the mechanic's wallet). But they also said that draining and refilling with Red Line MTL *did*. So I popped for 4 quarts (the Civic manual says it takes 1.8 quarts but it is really about 2 quarts)....2 quarts to try it out and 2 more in case I wanted to change it again "down the road", so to speak.And it worked! It's not perfect; about once a month I can feel it balk going into gear so I move the lever back to neutral and try again, and then it goes in. It's a whole lot better than a spendy transmission replacement. The car has about 107k miles on the clock as of this writing. If you're one of that unhappy mob as I was it's worth a try.A quick note: Whatever lube you feed the trans, make sure it's rated GL4 and not GL5. GL5 contains a sulfur additive and will slowly consume "yellow metal" alloys which the synchro cone clutches are faced with. If it says GL5 and also meets GL4.....NO GOOD. It has to be only GL4-rated. The Red Line is the proper GL4 formulation.

Product quality 👌Packaging and delivery - excellent.Noticeable improvement in driving and transmission work behaviour.Highly recommend!