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

9.9
25% off
2

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

9.8
3

STP GST60150EN Gearbox Oil Treatment 150 ml
STP

9.6
23% off
4

Lucas Oil 10009 Transmission Fix
Lucas Oil

9.4
5

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

9.1
Other
6

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

8.9
5% off
7

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

8.6
8

Bar's Leaks 1415 Transmission Fix
Bar's Leaks

8.3
9

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

8.0
10

Lubegard 50904 Automatic Transmission Fluid Protectant, 5 Gallon
Lubegard

7.7

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