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10 bestProlong Oil Additivesof December 2024

112M consumers helped this year.

1

Red Line 50105 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Gallon
Red Line 50105 75W85 GL-5 Full Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Gallon

Red Line

10.0

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2

Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml
Liqui Moly 2009 Anti-Friction Oil Treatment - 300 ml

Liqui Moly

10.0

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3

Red Line (50505) MT-85 Manual Transmission 75W85 GL-4 Gear Oil, 1 Gallon
Red Line (50505) MT-85 Manual Transmission 75W85 GL-4 Gear Oil, 1 Gallon

Red Line

9.8

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4

Red Line (58305) 75W90 Non-Limited Slip Synthetic Gear Oil - 1 Gallon
Red Line (58305) 75W90 Non-Limited Slip Synthetic Gear Oil - 1 Gallon

Red Line

9.6

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5

Liqui Moly 2009 Anti-Friction Oil Treatment-pk4
Liqui Moly 2009 Anti-Friction Oil Treatment-pk4

Liqui Moly

9.4

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TriboTEX Oil Additive Diesel Truck Engine Treatment: Add to Engine Oil - Makes High Mileage Pickups Like New with a Synthetic Material (Treats One Big Diesel Truck) Make Your Truck More Heavy Duty

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XADO Engine Oil additive - Protection for Engines - additive for wear Protection & rebuilding of Worn Metal Surfaces - Metal Conditioner w. Revitalizant 1Stage Maximum SUV (up to 10qt of Oil Capacity)

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Red Line 60202 Lead Substitute - 12 oz.

Red Line 60202 Lead Substitute - 12 oz.

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38% off

6

TriboTEX Oil Additive Car Engine Treatment: Add to Engine Oil - Makes High Mileage Cars Like New with a Synthetic Material (Treats One Regular Car, Truck, Tractor or Small Diesel)
TriboTEX Oil Additive Car Engine Treatment: Add to Engine Oil - Makes High Mileage Cars Like New with a Synthetic Material (Treats One Regular Car, Truck, Tractor or Small Diesel)

TriboTEX

9.2

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5% off

7

Prolong Super Lubricants PSL10020 Anti-Friction Metal Treatment, 1 Gallon
Prolong Super Lubricants PSL10020 Anti-Friction Metal Treatment, 1 Gallon

Prolong Super Lubricants

8.9

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8

Humidifier Drops - Premium Food Grade Concentrate, Slows Down Residue Accumulation on Surfaces, Minimizes Scaling - Freshens Water in All Humidifier Models, 100+ Day Supply, Made in USA
Humidifier Drops - Premium Food Grade Concentrate, Slows Down Residue Accumulation on Surfaces, Minimizes Scaling - Freshens Water in All Humidifier Models, 100+ Day Supply, Made in USA

Dry Element

8.6

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9

XADO Engine Oil Additive - Protection For Engines - Additive For Wear Protection & Rebuilding Of Worn Metal Surfaces - Metal Conditioner With Revitalizant 1 Stage Maximum (Up To 5qt Of Oil Capacity)
XADO Engine Oil Additive - Protection For Engines - Additive For Wear Protection & Rebuilding Of Worn Metal Surfaces - Metal Conditioner With Revitalizant 1 Stage Maximum (Up To 5qt Of Oil Capacity)

XADO

8.4

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10

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

XADO

8.1

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