We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy PolicyWe use cookies to enhance your experience and personalize ads. By using the site, you agree to that. Privacy Policy

10 bestTransmission Additivesof October 2025

112M consumers helped this year.

1

LIQUI MOLY Pro-Line Gear Oil Leak Stop | 500 ml | Oil additive | SKU: 5199
LIQUI MOLY Pro-Line Gear Oil Leak Stop | 500 ml | Oil additive | SKU: 5199

Liqui Moly

9.9

View Product
Buy it on Amazon

25% off

2

LIQUI MOLY ATF Additive | 250 ml | Oil additive | SKU: 5135
LIQUI MOLY ATF Additive | 250 ml | Oil additive | SKU: 5135

Liqui Moly

9.8

View Product
Buy it on Amazon

3

STP GST60150EN Gearbox Oil Treatment 150 ml
STP GST60150EN Gearbox Oil Treatment 150 ml

STP

9.6

View Product
Buy it on Amazon

23% off

4

Lucas Oil 10009 Transmission Fix
Lucas Oil 10009 Transmission Fix

Lucas Oil

9.4

View Product
Buy it on Amazon

5

LIQUI MOLY Pro-Line Gear Oil Additive | 150 ml | Oil additive | SKU: 5198
LIQUI MOLY Pro-Line Gear Oil Additive | 150 ml | Oil additive | SKU: 5198

Liqui Moly

9.1

View Product
Buy it on Amazon

Related products

XADO EX120 Automatic Transmission Fix - Treatment for CVT & Other Gearbox Types | ATF Additive & Protectant - Reduces Sticking, Shudder and Slipping

XADO EX120 Automatic Transmission Fix - Treatment for CVT & Other Gearbox Types | ATF Additive & Protectant - Reduces Sticking, Shudder and Slipping

View Deal

6

LIQUI MOLY Gear-Oil Additive | 20 g | Oil additive | SKU: 1040
LIQUI MOLY Gear-Oil Additive | 20 g | Oil additive | SKU: 1040

Liqui Moly

8.9

View Product
Buy it on Amazon

5% off

7

WOL Liqui-Moly 2510 MOS2 Anti Friction Gear Oil Additive 50g Transmission Oil Additive Treatment
WOL Liqui-Moly 2510 MOS2 Anti Friction Gear Oil Additive 50g Transmission Oil Additive Treatment

WOL WORLD OF LUBRICANT

8.6

View Product
Buy it on Amazon

8

Bar's Leaks 1415 Transmission Fix
Bar's Leaks 1415 Transmission Fix

Bar's Leaks

8.3

View Product
Buy it on Amazon

9

Rislone High Mileage Transmission Stop Slip with Leak Repair,Pack of 1,4502
Rislone High Mileage Transmission Stop Slip with Leak Repair,Pack of 1,4502

Rislone

8.0

View Product
Buy it on Amazon

10

Lubegard 50904 Automatic Transmission Fluid Protectant, 5 Gallon
Lubegard 50904 Automatic Transmission Fluid Protectant, 5 Gallon

Lubegard

7.7

View Product
Buy it on Amazon

Related Reviews You Might Like

Oil Additives

Oil Additives
subscribe-icon

Best Reviews Guide Newsletter

Get exclusive articles, recommendations, shopping tips, and sales alerts

By submitting your email address you agree to our Terms and Conditions and Privacy Policy