AMSOIL Synthetic Synchromesh Transmission Fluid (MTF) is a premium quality synthetic lubricant designed to surpass the most demanding lubrication requirements of manual transmissions and transaxles where non-extreme pressure fluids are used.
Package sizes include:
1-Quart Bottle
1-Quart Bottles (case of 12)
5-Gallon Pail
55-Gallon Drum
Recommended for automotive and light truck applications that require synchromesh transmission fluid. Applications include manual transmissions and transaxles such as New Venture NV T350, NV 1500, NV 2550, NV 3500, NV 3550, NV 5600, and Tremec T4, T5, T18, T56, T176, TKO500, TKO600, TR 3450 and TR 3550. Replaces MTF-94 fluid for Land Rover, MG, and Mini Cooper. Replaces Honda Genuine MTF fluid for manual transaxles and Texaco MTX fluid. Not for use in engines or wet clutch applications.
Specifications include:
• GM 9985648
• GM 9986105
• GM 9985535
• Chrysler MS-9224
• Chrysler MS-9417
Part Numbers
• GM 12345349 or 12345577
• GM 12377916
• GM 1052931
• Chrysler 4874464
• Chrysler 4874465
AMSOIL Synthetic Synchromesh Transmission Fluid (MTF) is a premium quality synthetic lubricant designed to surpass the most demanding lubrication requirements of manual transmissions and transaxles where non-extreme pressure fluids are used.
MTF protects gears and bearings in extreme temperatures. It outperforms conventional oils and delivers outstanding performance from -40°F to 300°F. It maximizes energy efficiency and resists the effects of heat, oxidation, sludge and
varnish deposits.
Unlike its mineral oil counterparts, MTF prevents the thinning effects of mechanical shear for stable viscosity, superior film strength and anti-wear performance. It protects against rust, keeps seals soft for long life, and is compatible with brass synchros for smooth synchromesh shift quality.
AMSOIL Manual Synchromesh Transmission Fluid is a higher quality, lower cost replacement for multiple vehicle manufacturer branded products. This premium synthetic formulation provides enhanced anti-wear protection and lasts longer in service. MTF exceeds the performance requirements of both manual transmissions and transaxles.
AMSOIL Manual Synchromesh Transmission fluid is a versatile transmission lubricant. It reduces inventory needs, is readily available and is cost effective compared to vehicle manufacturer branded products.
Performance Features
• Reduces friction, heat and wear
• Superior high temperature stability
• Resists heat, oxidation, acid buildup and varnish
• Improves cold weather shifting
Recommended for 50,000-mile service intervals or longer (up to 150,000 miles) as indicated in the owner's manual.
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).
Click here to view the MSDS Data Sheet for AMSOIL MTF.
Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
| TYPICAL TECHNICAL PROPERTIES | |
| Synthetic Synchromesh Transmission Fluid 5W-30 (MTF) | |
| Kinematic Viscosity @ 100°C, cSt (ASTM D-445) | 10.1 |
| Kinematic Viscosity @ 40°C, cSt (ASTM D-445) | 49.4 |
| Viscosity Index (ASTM D-2270) | 196 |
| Flash Point, °C (°F) (ASTM D-92) 150°C Min. | 218 (424) |
| Pour Point, °C (°F) (ASTM D-97) | -48 (-54) |
| 4-Ball Wear 75°C, 1200 rpm, 40kg, 1 hr. | 0.40mm |
| Brookfield Viscosity @ -40°C | 32,075 |
| Foam Stability (ASTM D-892) | 0/0, 0/0, 0/0 |
| Copper Corrosion (3 hr, 121°C) (ASTM D-130) | 1A |
Product Name: Manual Synchromesh Transmission Fluid 5W-30 (MTF)
Current Rating: 4.9out of 5 stars
Votes & Reviews: 51 vote(s) and 48 user reviews.
Reviewed by Kyle: 
Purchesd 8qrts to go in my NV5600 behind my 03 HO cummins (got 8 because I added two FAST oil coolers and wanted a one quart over fill) I can't say exactly how much the fluid helped because I installed a new southbend clutch at the same time but it was a NIGHT AND DAY difference i used to FIGHT reverse SO HARD trying every trick in the book but read some forums saying the 5w30 syncromesh was the cure and it was!!!! Reverse is still stiff but that's just how those NV5600 are but now it actually goes into gear and all the forward gears go in like warm butter, worth the money hands down
Reviewed by Steven:
I want my Jeep to last. After seeing several YouTube videos on Amsoil I decided it was the best I could buy. So far I have no complaints and I will continue to use Amsoil.
Reviewed by Kenneth:
Effortless shifts in my Honda after replacing the standard fluid with Amsoil
Reviewed by Kelly:
Use this product on my 2005 Jeep LJ 6 speed for 4 years now with no issues. I have trusted AMSOIL products for a while now in my Jeep nothing but the best for her.
Reviewed by Oscar:
Replace stock fluid from my car witch felt rough at 60k miles. I have done two more oil changes and the gear changes are smooth. My car has over 190k miles now
Reviewed by Noel:
Switched to 100% synthetic in my 2017 manual transmission at 5000 miles, and I could tell the difference shifting, definitely smoother.
Reviewed by Al:
This alone fixed my third gear grinds (common on 8th gen civic si's), shifts a lot more smoothly never hAd problems again!
Reviewed by Guilty-Crown-:
Great replacement product that falls under guidelines for hard to find factory fluids, improved shifting performance and smoothness, reduced temps in high heat and massively improved startup shifts in minus 20-30c weather
Reviewed by Jim:
Shifting seems much smoother
Canada
United States
Pairs well with roasted duck.
Very smooth. Notes of toasted chestnut and cinnamon. A light yet oakey finish.