Been Mechanic last 10 years and I tow commercially part time, pull 8-16k lb campers, over quarter million miles on my nv5600 and looks brand new inside..I run 9 qts Amsoil synchromesh 5w-30 with pto coolers. I hated how truck shifted with factory fluid/pennzoil, so switched to Amsoil, about 400 miles getting amsoil worked in all gears and bearings, all my gears smoothed out, no notchy shifting, no double click like shift feeling,no issues going from 6th to 5th,much easier to speed shift it. Put 80k miles on fluid rated for 150k miles and I wanted to change it just to see how it looked after towing 8-16k lb travel trailers, went to drain fluid, came out looking brand new like I poured it out of a sealed new bottle of amsoil. Was more then pleased and happy to put 9 qts back in.

Fantastic poor point, so very beneficial in super cold climates, great shifting in all seasons.

Used this in place of the recommended honda 5w30 MTF and have been very impressed.

I have a 2008 Acura TL Type S with a 6 speed manual. It has a helical type limited slip diff built into the transaxle, which presents a challenge to transmission fluid. Other fluids tend to break down and cause bad synchro performance, but Amsoil synchro shift is up to the task!

I have been in motorsports for over 40 years, have never seen this much improvement in a fluid change alone. Removed Dex. III and applied Amsoil synchromesh unbelievable difference in the way my new (less than 200 miles on 450 HP street car) Temec 6 speed magnum shifts.

I own a 2011 Civic Si Sedan, which all came with a 6 speed manual gearbox + Limited Slip Differential transmission. Amsoil is one of the only synthetic products out there (apart from Honda's MTF) to offer an oil that's safe for the soft metals within a Limited Slip transmission. On top of that, it made shifting even smoother than before, a noticeable difference. I am very happy with this product and will definitely be buying again

Changed the fluid in my wife's 2008 Honda Fit. Manual transmission has only 50,000 miles, but it's been in there for 10+ years. Transmission shifts easier and is quieter. This is the best product to replace your manual transmission fluid with.

Made shifting my Civic hatchback transmission smooth and easy, no more notchiness. Definitely recommended for Honda owners

My 1994 Mustang uses Mercon ATF in the T5 5 speed. I was not happy with how notchy the transmission felt while shifting gears, a common complaint on this trans. I changed out the ATF and started using the Manual Synchromesh fluid. I had immediate results with quieter operation and smoother shifts. This product conforms to the specification by Tremec and since Tremec took over the T5 from B Borg Warner, it was a no brainer.

Great product!

Used this in my '02 Jeep TJ and noticed a big difference in the manual transmission. Before it used to shift a little rough when I be leaving first thing in the morning, now it shifts smoothly right off the get go.

Great Product,Probably The Best.Wish AMSOIL Cut One A Break On Shipping!

I bought this for a manual transmission based on reviews, and have been super stoked with the performance.

I have always used synthetics in my vehicles. When I started having problems with my trans in my Jeep Wrangler. I looked at a lot of fluids and found that more people had the problem fix/solved by adding Amsoil.

I use 2qts instead of a the 1.86 it calls for. I love how it doesn't break down in the hot summer heat

Used this the first time in a 5 - speed manual transmission in my Acura CL and now going to put it in my 98 Honda Accord with a 5 speed manual trans

I have 44k miles on my 2013 Jeep Wrangler, have changed the manual trans fluid every 15k or so and was not happy with how notchy and would ocationally grind. After installing this fluid. Smooth sailing.

everything that I have used is fantastic.

I use it in everything I own

I bought my RSX with about 83,000 miles on it. It had no maintenance records for when the transmission fluid had been previously changed. I changed it with Honda MTF about 3,000 miles later after it had developed a sticky third gear( basically it would catch when trying to put it into third gear). This seemed to work for a bit but it started to catch and stick after a while. I had been using Amsoil Motor Oil for my previous and current car and I had no complaints so I figured with no maintenance schedule for when previous fluids had been changed, it would be a good idea to replace all the fluids with Amsoil fluids, (which I did, except for the Power Steering Fluid which Honda/Acura are very specific about using their own brand... or else). Anyways, after replacing all fluids, the biggest noticeable difference was my clutch fluid(replaced with Amsoil Dot3 Brake Fluid) which came out a nasty brown color and looked like it had been there for the life of the car, that brought the spring back into the clutch, and my transmission. I had a hard time believing that changing the fluid would make that much of a difference. It felt like little robots had gone into the transmission and lubed up the necessary gears because third gear became buttery smooth. And I was scared that this was something that would last for only a little while, a placebo effect even, but I've put on approximately another 3,000 miles and the third gear grind has become a distant memory. Now this might not be your exact experience but Amsoil has changed my car, it has given me a reason to shift. So yeah, you should try it.