Oil Additive(443)
Uses item details. Price when purchased online
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz From $15.97

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From$1597
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz
2474.7 out of 5 Stars. 247 reviews
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(24 pack) Lucas Oil Products High Mileage Oil Stablizer (1 qt.) $371.52 48.4 ¢/fl oz

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$37152
current price $371.5248.4 ¢/fl oz
From $15.48
(24 pack) Lucas Oil Products High Mileage Oil Stablizer (1 qt.)
9834.8 out of 5 Stars. 983 reviews
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50+ bought since yesterday Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz From $14.44

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Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
10694.8 out of 5 Stars. 1069 reviews
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Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive From $12.32

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From$1232
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive
4234.5 out of 5 Stars. 423 reviews
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Rislone 4102 Engine Treatment Automotive Additive, 16.9 oz From $6.88

5 options
Available in additional 5 optionsFrom$688
Rislone 4102 Engine Treatment Automotive Additive, 16.9 oz
5774.7 out of 5 Stars. 577 reviews
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500+ bought since yesterday Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz From $8.48

5 options
Available in additional 5 optionsFrom$848
Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz
61694.8 out of 5 Stars. 6169 reviews
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STP Ultra Anti-Friction Engine Oil Additive Treatment for Improved Performance, 15 oz From $8.92

2 options
Available in additional 2 optionsFrom$892
STP Ultra Anti-Friction Engine Oil Additive Treatment for Improved Performance, 15 oz
1154.8 out of 5 Stars. 115 reviews
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Super Tech Motor Oil Additive, 32 oz From $10.42

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Available in additional 5 optionsFrom$1042
Super Tech Motor Oil Additive, 32 oz
1204.7 out of 5 Stars. 120 reviews
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Overall pick STP High Viscosity Oil Treatment 15 Fluid Ounces for Conventional or Synthetic Oils From $4.98

5 options
Available in additional 5 optionsFrom$498
STP High Viscosity Oil Treatment 15 Fluid Ounces for Conventional or Synthetic Oils
3214.8 out of 5 Stars. 321 reviews
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STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz From $6.98

6 options
Available in additional 6 optionsFrom$698
STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz
4954.6 out of 5 Stars. 495 reviews
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Lucas 10130 Synthetic Oil Stabilizer 32 Ounce for Motor Vehicles From $18.26

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From$1826
Lucas 10130 Synthetic Oil Stabilizer 32 Ounce for Motor Vehicles
4474.8 out of 5 Stars. 447 reviews
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Hot Shot's Secret Stiction Eliminator Oil Treatment for Gas & Diesel Engines 16 oz. From $17.78

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From$1778
Hot Shot's Secret Stiction Eliminator Oil Treatment for Gas & Diesel Engines 16 oz.
7834.9 out of 5 Stars. 783 reviews
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STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz From $8.92

4 options
Available in additional 4 optionsFrom$892
STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
1644.8 out of 5 Stars. 164 reviews
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Restore Engine Restorer and Lubricant Formula for 4-Cylinder Engines - 9 fl oz From $7.97

5 options
Available in additional 5 optionsFrom$797
Restore Engine Restorer and Lubricant Formula for 4-Cylinder Engines - 9 fl oz
1594.7 out of 5 Stars. 159 reviews
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Liqui Moly Anti-Friction Engine Oil Treatment 2009, 10.1 fl oz $24.98

$2498
current price $24.98Liqui Moly Anti-Friction Engine Oil Treatment 2009, 10.1 fl oz
634.5 out of 5 Stars. 63 reviews
50+ bought since yesterday Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz From $14.44

5 options
Available in additional 5 optionsFrom$1444
Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
10694.8 out of 5 Stars. 1069 reviews
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Marvel Mystery Oil - Automotive Additive Oil Enhancer and Fuel Treatment , 64 oz, Works with Vehicles with Gasoline and Diesel Engines From $12.97

4 options
Available in additional 4 optionsFrom$1297
Marvel Mystery Oil - Automotive Additive Oil Enhancer and Fuel Treatment , 64 oz, Works with Vehicles with Gasoline and Diesel Engines
1434.7 out of 5 Stars. 143 reviews
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Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 oz From $13.78

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Available in additional 5 optionsFrom$1378
Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 oz
3194.6 out of 5 Stars. 319 reviews
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Best seller Lucas Oil Products High Mileage Oil Stablizer (1 qt.) From $15.48

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Available in additional 5 optionsFrom$1548
Lucas Oil Products High Mileage Oil Stablizer (1 qt.)
9834.8 out of 5 Stars. 983 reviews
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Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037 $19.99

$1999
current price $19.99Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037
984.5 out of 5 Stars. 98 reviews
Hot Shot's Secret FR3 Oil Treatment for Gas & Diesel Engines 16 oz From $18.50

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From$1850
Hot Shot's Secret FR3 Oil Treatment for Gas & Diesel Engines 16 oz
4914.9 out of 5 Stars. 491 reviews
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500+ bought since yesterday Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart From $31.97

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From$3197
Mobil 1 Advanced Fuel Economy Full Synthetic Motor Oil 0W-20, 5 Quart
59494.7 out of 5 Stars. 5949 reviews
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50+ bought since yesterday Sea Foam High Mileage Motor Treatment From $11.88

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Available in additional 5 optionsFrom$1188
Sea Foam High Mileage Motor Treatment
9284.8 out of 5 Stars. 928 reviews
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Hot Shot's Secret Stiction Eliminator Oil Treatment for Gas & Diesel Engines 16 oz. From $17.78

5 options
Available in additional 5 optionsFrom$1778
Hot Shot's Secret Stiction Eliminator Oil Treatment for Gas & Diesel Engines 16 oz.
7834.9 out of 5 Stars. 783 reviews
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Rislone 4416 High Mileage Ring Seal Smoke Repair Automotive Additive, 16 oz From $7.24

5 options
Available in additional 5 optionsFrom$724
Rislone 4416 High Mileage Ring Seal Smoke Repair Automotive Additive, 16 oz
3814.6 out of 5 Stars. 381 reviews
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Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz From $15.97

4 options
Available in additional 4 optionsFrom$1597
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz
2474.7 out of 5 Stars. 247 reviews
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Slick 50 ReCharged High Mileage Engine Treatment Automotive Additive, 10W-30 Motor Oil, 32 Ounce From $17.97

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Available in additional 4 optionsFrom$1797
Slick 50 ReCharged High Mileage Engine Treatment Automotive Additive, 10W-30 Motor Oil, 32 Ounce
1314.8 out of 5 Stars. 131 reviews
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Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive From $12.32

4 options
Available in additional 4 optionsFrom$1232
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive
4234.5 out of 5 Stars. 423 reviews
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Liqui Moly Cera Tec 20002 Automotive Additive, 300 mL $35.95

$3595
current price $35.95Liqui Moly Cera Tec 20002 Automotive Additive, 300 mL
674.8 out of 5 Stars. 67 reviews
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Super Tech Universal Motor Treatment for Gas, Diesel, and Oil, Truck and Car 16 fl oz From $4.64

5 options
Available in additional 5 optionsFrom$464
Super Tech Universal Motor Treatment for Gas, Diesel, and Oil, Truck and Car 16 fl oz
3314.6 out of 5 Stars. 331 reviews
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Lucas Oil 10003 Fuel Injector Cleaner 32 oz. Automotive Additive From $9.89

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From$989
Lucas Oil 10003 Fuel Injector Cleaner 32 oz. Automotive Additive
12004.8 out of 5 Stars. 1200 reviews
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Top rated for fuel economy Gumout Multi-System Tune-up 16 oz Automotive Additive - 510011W From $7.64

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From$764
Gumout Multi-System Tune-up 16 oz Automotive Additive - 510011W
4634.7 out of 5 Stars. 463 reviews
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Hot Shot's Secret FR3 Oil Treatment for Gas & Diesel Engines 16 oz From $18.50

5 options
Available in additional 5 optionsFrom$1850
Hot Shot's Secret FR3 Oil Treatment for Gas & Diesel Engines 16 oz
4914.9 out of 5 Stars. 491 reviews
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Niteo Products Motor Medic Engine Flush Additive, 32 fl oz – Cleans Cars, Trucks, SUVs From $6.78

4 options
Available in additional 4 optionsFrom$678
Niteo Products Motor Medic Engine Flush Additive, 32 fl oz – Cleans Cars, Trucks, SUVs
2274.7 out of 5 Stars. 227 reviews
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Rislone Hy-per Lube High Mileage Oil Stabilizer, 16.9 fl oz From $9.38

4 options
Available in additional 4 optionsFrom$938
Rislone Hy-per Lube High Mileage Oil Stabilizer, 16.9 fl oz
1694.8 out of 5 Stars. 169 reviews
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Bar's Leaks Head Seal Blown Head Gasket Repair, Automotive Additive, 33.8 oz From $32.99

5 options
Available in additional 5 optionsFrom$3299
Bar's Leaks Head Seal Blown Head Gasket Repair, Automotive Additive, 33.8 oz
10174.6 out of 5 Stars. 1017 reviews
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Liqui Moly Ceratec Oil Additive $44.00

$4400
current price $44.00Liqui Moly Ceratec Oil Additive
Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive From $35.68

3 options
Available in additional 3 optionsFrom$3568
Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive
6744.8 out of 5 Stars. 674 reviews
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Red Line Synthetic Oil Complete Fuel System Cleaner 60102 Automotive Additive for Motorcycles $7.79 Was $8.96

Now$779
current price Now $7.79, Was $8.96$8.96
Red Line Synthetic Oil Complete Fuel System Cleaner 60102 Automotive Additive for Motorcycles
125 out of 5 Stars. 12 reviews
Lucas Oil 10669 Deep Clean Fuel System Cleaner 5.25 Ounce Automotive Fuel Additive From $5.79

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Available in additional 4 optionsFrom$579
Lucas Oil 10669 Deep Clean Fuel System Cleaner 5.25 Ounce Automotive Fuel Additive
1774.7 out of 5 Stars. 177 reviews
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Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz From $6.36

6 options
Available in additional 6 optionsFrom$636
Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz
6694.4 out of 5 Stars. 669 reviews
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Lucas Oil 10013 Fuel Treatment Gallon 7.5 Pound From $31.44

3 options
Available in additional 3 optionsFrom$3144
Lucas Oil 10013 Fuel Treatment Gallon 7.5 Pound
11354.8 out of 5 Stars. 1135 reviews
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Hot Shot's Secret Tick Fix Oil Enhancer for Gasoline Engines, Suitable for Cars and Trucks, 32 oz $18.99 59.3 ¢/oz

$1899
current price $18.9959.3 ¢/oz
Hot Shot's Secret Tick Fix Oil Enhancer for Gasoline Engines, Suitable for Cars and Trucks, 32 oz
504.5 out of 5 Stars. 50 reviews
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Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair, Automotive Additive, 16.9 oz From $22.28

5 options
Available in additional 5 optionsFrom$2228
Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair, Automotive Additive, 16.9 oz
9434.6 out of 5 Stars. 943 reviews
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Archoil AR9100 Friction Modifier (16oz) Oil Additive for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems $44.95

$4495
current price $44.95Archoil AR9100 Friction Modifier (16oz) Oil Additive for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems
4424.9 out of 5 Stars. 442 reviews
Sea Foam Fuel Additive SF16 - Universal Automotive Treatment - 16 oz Bottle $15.99

$1599
current price $15.99Sea Foam Fuel Additive SF16 - Universal Automotive Treatment - 16 oz Bottle
124.6 out of 5 Stars. 12 reviews
Lucas Oil 10003 Fuel Injector Cleaner 32 oz. Automotive Additive From $9.89

4 options
Available in additional 4 optionsFrom$989
Lucas Oil 10003 Fuel Injector Cleaner 32 oz. Automotive Additive
12004.8 out of 5 Stars. 1200 reviews
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STP Super Concentrated High Mileage Engine Flush (15 fl. oz.) From $6.27

6 options
Available in additional 6 optionsFrom$627
STP Super Concentrated High Mileage Engine Flush (15 fl. oz.)
1564.8 out of 5 Stars. 156 reviews
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505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ) $47.97

$4797
current price $47.97505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ)
354.4 out of 5 Stars. 35 reviews
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Rislone Hyper Lube Oil Supplement Automotive Additives, 32 oz $18.99

$1899
current price $18.99Rislone Hyper Lube Oil Supplement Automotive Additives, 32 oz
504.9 out of 5 Stars. 50 reviews