10 bestOil Additives To Stop Leaksof March 2026
112M consumers helped this year.
1
Bar's Products OS-1-4PK Oil Seal (Engine Oil Burning/Leak Repair)
Bar's Leaks
10.0
10% off
2
Lucas Oil 40001 Heavy Duty Oil Stabilizer-1L & 40278 Engine Stop Leak - 946ml
Lucas Oil
10.0
26% off
3
LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591
Liqui Moly
9.8
4
Wynn's Stop Smoke For Oil Additive For Reducing Petrol & Diesel Engine Exhaust Emissions and Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml
Wynn's
9.7
5
Wynn's Formula Gold Engine Oil Treatment Increase Compression And Reduces Wear Petrol & Diesel
Wynn's
9.4
OtherUp to 10% off
Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
LIQUI MOLY Pro-Line Oil Loss Stop | 1 L | Oil additive | SKU: 5182
LIQUI MOLY Radiator Stop Leak | 150 ml | Cooler additive | SKU: 8956
STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK
10% off
6
Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml
Wynn's
9.2
16% off
7
Lucas Oil 40011 Power Steering Stop Leak - 1 Litre
Lucas Oil
9.0
6% off
8
LIQUI MOLY Pro-Line Gear Oil Leak Stop | 500 ml | Oil additive | SKU: 5199
Liqui Moly
8.7
9
Lucas Oil 40008 Power Steering Stop Leak - 355ml
Lucas Oil
8.4
10
LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU: 1802
Liqui Moly
8.2
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