Shop engine oil additives that work

Sponsored
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$107.99
Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
Amazon.com
622
Free shipping
$107.99
Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
Amazon.com
622
$118.69
Tribotex Nano Oil Additive Car Engine Treatment: Add To Engine Lube - Makes High Mileage Cars Like New With A Synthetic Material (Treats One Regular
Amazon.com
1K+
Free shipping
$118.69
Tribotex Nano Oil Additive Car Engine Treatment: Add To Engine Lube - Makes High Mileage Cars Like New With A Synthetic Material (Treats One Regular
Amazon.com
1K+
$13.96
$15.97
Slick 50 Original Engine Treatment | 32 Oz., Single
Amazon.com
610
12% off
$13.96
$15.97
Slick 50 Original Engine Treatment | 32 Oz., Single
Amazon.com
610
$19.99
Slick 50 Engine Treatment 15 Oz
Ace Hardware
$19.99
Slick 50 Engine Treatment 15 Oz
Ace Hardware
$7.99
Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
Advance Auto Parts
1K+
$7.99
Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
Advance Auto Parts
1K+
$59.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive - 64 OZ
D&J Precision Machine
3K+
$59.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive - 64 OZ
D&J Precision Machine
3K+
$34.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 32 OZ
D&J Precision Machine
4K+
$34.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 32 OZ
D&J Precision Machine
4K+
$16.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Quart, 10001
Advance Auto Parts
796
$16.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Quart, 10001
Advance Auto Parts
796
$32.99
LIQUI MOLY Cera Tec Friction Motor Oil Additive, Compatible With All Motor Oils, 300 Ml, 20002
Advance Auto Parts
248
$32.99
LIQUI MOLY Cera Tec Friction Motor Oil Additive, Compatible With All Motor Oils, 300 Ml, 20002
Advance Auto Parts
248
$6.58
$16.54
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 32 Oz.
Walmart
184
60% off
$6.58
$16.54
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 32 Oz.
Walmart
184
$5.99
STP Oil Treatment 15.73 Oz
Ace Hardware
$5.99
STP Oil Treatment 15.73 Oz
Ace Hardware
$41.08
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 1 Gallon
Walmart
199
Free shipping
$41.08
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 1 Gallon
Walmart
199
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
246
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
246
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
$6.98
Stp High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 Fl Oz
Walmart
269
$6.98
Stp High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 Fl Oz
Walmart
269
$16.79
Red Line Engine Break-In Additive, 16 Ounce Bottle
Pegasus Auto Racing Supplies
187
$16.79
Red Line Engine Break-In Additive, 16 Ounce Bottle
Pegasus Auto Racing Supplies
187
$10.09
$11.09
JEGS Break-In/Engine Oil Supplement [12 Oz. Bottle]
JEGS High Performance
$10.09
$11.09
JEGS Break-In/Engine Oil Supplement [12 Oz. Bottle]
JEGS High Performance
$35.99
Hot Shots Secret FR3 Oil Additive
Mark DeCola Diesel Performance LLC
$35.99
Hot Shots Secret FR3 Oil Additive
Mark DeCola Diesel Performance LLC
$50.39
Hot Shot's Secret HSSFR364Z: Hot Shot's Secret FR3 Oil Additive
Summit Racing
36
$50.39
Hot Shot's Secret HSSFR364Z: Hot Shot's Secret FR3 Oil Additive
Summit Racing
36
$49.99
Northstar Maintenance Kit For Northstar 180CC And 225CC Engines, 2 Qts. 10/30W Oil, 8-Oz. Fuel Additive, Funnel, Filter And Spark Plug, Model 805642
Northern Tool
$49.99
Northstar Maintenance Kit For Northstar 180CC And 225CC Engines, 2 Qts. 10/30W Oil, 8-Oz. Fuel Additive, Funnel, Filter And Spark Plug, Model 805642
Northern Tool
$22.99
Liqui-Moly Oil Change Additive Package - Proline Engine Flush And Mos2 Anti Friction Oil Treatment: This Two-Step Kit Features A Flushing Additive ...
Turner Motorsport
$22.99
Liqui-Moly Oil Change Additive Package - Proline Engine Flush And Mos2 Anti Friction Oil Treatment: This Two-Step Kit Features A Flushing Additive ...
Turner Motorsport
$8.50
Lucas Oil 1 Qt. Engine Treatment/Additive
Lougay Shoes
$8.50
Lucas Oil 1 Qt. Engine Treatment/Additive
Lougay Shoes
$19.99
Hot Shot's Secret EVERYDAY DIESEL TREATMENT 6-In-1 Fuel Booster - 16 OZ ROUND
D&J Precision Machine
7K+
$19.99
Hot Shot's Secret EVERYDAY DIESEL TREATMENT 6-In-1 Fuel Booster - 16 OZ ROUND
D&J Precision Machine
7K+
$49.99
Northstar Maintenance Kit For Northstar 300CC Engine, 2 Qts. 10/30W Oil, 12-Oz. Fuel Additive, 1 Filter, 1 Spark Plug, Model 805643
Northern Tool
$49.99
Northstar Maintenance Kit For Northstar 300CC Engine, 2 Qts. 10/30W Oil, 12-Oz. Fuel Additive, 1 Filter, 1 Spark Plug, Model 805643
Northern Tool
$16.99
Lucas Oil 10118-1: Lucas High-Mileage Oil Stabilizer
Summit Racing
2K+
$16.99
Lucas Oil 10118-1: Lucas High-Mileage Oil Stabilizer
Summit Racing
2K+
$8.99
Liqui-Moly 300Ml Liqui-Moly Mos2 Anti Friction Engine Treatment: Use This Anti-Friction Additive With Every Oil Change! It Is Great For Preventing ...
Turner Motorsport
$8.99
Liqui-Moly 300Ml Liqui-Moly Mos2 Anti Friction Engine Treatment: Use This Anti-Friction Additive With Every Oil Change! It Is Great For Preventing ...
Turner Motorsport
$34.89
$45.36
Rev X High Performance Oil Additive - 4 Oz. REV0401B
Equfina
23% off
$34.89
$45.36
Rev X High Performance Oil Additive - 4 Oz. REV0401B
Equfina
$12.99
Liqui Moly Oil Additive, Limited Warranty 22074
Carparts.com
$12.99
Liqui Moly Oil Additive, Limited Warranty 22074
Carparts.com
$17.58
Mr Gasket Zinc Engine Oil Additive
JEGS High Performance
12
$17.58
Mr Gasket Zinc Engine Oil Additive
JEGS High Performance
12
$12.99
$17.99
Eastwood 4Oz. ZDDP Oil Additive
CJ Pony Parts
13
27% off
$12.99
$17.99
Eastwood 4Oz. ZDDP Oil Additive
CJ Pony Parts
13
$49.99
Northstar Maintenance Kit For Northstar 420CC Engines, 2 Qts. 10/30W Oil, 8-Oz. Fuel Additive, Funnel, Filter And Spark Plug, Model 805644
Northern Tool
$49.99
Northstar Maintenance Kit For Northstar 420CC Engines, 2 Qts. 10/30W Oil, 8-Oz. Fuel Additive, Funnel, Filter And Spark Plug, Model 805644
Northern Tool
$22.49
Liqui Moly Oil Additive, 20284
Carparts.com
Free shipping
$22.49
Liqui Moly Oil Additive, 20284
Carparts.com
Free shipping
$34.79
$52.19
Rev X High Performance Oil Additive - 4 Oz. REV0401B
www.entstock.com Two
33% off
$34.79
$52.19
Rev X High Performance Oil Additive - 4 Oz. REV0401B
www.entstock.com Two
$16.75
AVBLEND Engine Oil Additive 12 Oz
AircraftSpruce.com
4
$16.75
AVBLEND Engine Oil Additive 12 Oz
AircraftSpruce.com
4
$16.79
Red Line Oil Engine Break-In Additive 16Oz.
JEGS High Performance
187
$16.79
Red Line Oil Engine Break-In Additive 16Oz.
JEGS High Performance
187
$21.85
Camguard Sml Engine Oil Additive 8Oz
AircraftSpruce.com
$21.85
Camguard Sml Engine Oil Additive 8Oz
AircraftSpruce.com
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Shop engine oil additives that work

Sponsored
About our ads
$41.08
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 1 Gallon
Walmart
199
Free shipping
$41.08
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 1 Gallon
Walmart
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
246
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
$6.98
Stp High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 Fl Oz
Walmart
269
$6.98
Stp High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 Fl Oz
Walmart
$16.79
Red Line Engine Break-In Additive, 16 Ounce Bottle
Pegasus Auto Racing Supplies
187
$16.79
Red Line Engine Break-In Additive, 16 Ounce Bottle
Pegasus Auto Racing Supplies
$10.09
$11.09
JEGS Break-In/Engine Oil Supplement [12 Oz. Bottle]
JEGS High Performance
$10.09
$11.09
JEGS Break-In/Engine Oil Supplement [12 Oz. Bottle]
JEGS High Performance
$35.99
Hot Shots Secret FR3 Oil Additive
Mark DeCola Diesel Performance LLC
$35.99
Hot Shots Secret FR3 Oil Additive
Mark DeCola Diesel Performance LLC
$50.39
Hot Shot's Secret HSSFR364Z: Hot Shot's Secret FR3 Oil Additive
Summit Racing
36
$50.39
Hot Shot's Secret HSSFR364Z: Hot Shot's Secret FR3 Oil Additive
Summit Racing
$49.99
Northstar Maintenance Kit For Northstar 180CC And 225CC Engines, 2 Qts. 10/30W Oil, 8-Oz. Fuel Additive, Funnel, Filter And Spark Plug, Model 805642
Northern Tool
$49.99
Northstar Maintenance Kit For Northstar 180CC And 225CC Engines, 2 Qts. 10/30W Oil, 8-Oz. Fuel Additive, Funnel, Filter And Spark Plug, Model 805642
Northern Tool
$22.99
Liqui-Moly Oil Change Additive Package - Proline Engine Flush And Mos2 Anti Friction Oil Treatment: This Two-Step Kit Features A Flushing Additive ...
Turner Motorsport
$22.99
Liqui-Moly Oil Change Additive Package - Proline Engine Flush And Mos2 Anti Friction Oil Treatment: This Two-Step Kit Features A Flushing Additive ...
Turner Motorsport
$8.50
Lucas Oil 1 Qt. Engine Treatment/Additive
Lougay Shoes
$8.50
Lucas Oil 1 Qt. Engine Treatment/Additive
Lougay Shoes
$19.99
Hot Shot's Secret EVERYDAY DIESEL TREATMENT 6-In-1 Fuel Booster - 16 OZ ROUND
D&J Precision Machine
7K+
$19.99
Hot Shot's Secret EVERYDAY DIESEL TREATMENT 6-In-1 Fuel Booster - 16 OZ ROUND
D&J Precision Machine
$49.99
Northstar Maintenance Kit For Northstar 300CC Engine, 2 Qts. 10/30W Oil, 12-Oz. Fuel Additive, 1 Filter, 1 Spark Plug, Model 805643
Northern Tool
$49.99
Northstar Maintenance Kit For Northstar 300CC Engine, 2 Qts. 10/30W Oil, 12-Oz. Fuel Additive, 1 Filter, 1 Spark Plug, Model 805643
Northern Tool
$16.99
Lucas Oil 10118-1: Lucas High-Mileage Oil Stabilizer
Summit Racing
2K+
$16.99
Lucas Oil 10118-1: Lucas High-Mileage Oil Stabilizer
Summit Racing
$8.99
Liqui-Moly 300Ml Liqui-Moly Mos2 Anti Friction Engine Treatment: Use This Anti-Friction Additive With Every Oil Change! It Is Great For Preventing ...
Turner Motorsport
$8.99
Liqui-Moly 300Ml Liqui-Moly Mos2 Anti Friction Engine Treatment: Use This Anti-Friction Additive With Every Oil Change! It Is Great For Preventing ...
Turner Motorsport
$34.89
$45.36
Rev X High Performance Oil Additive - 4 Oz. REV0401B
Equfina
23% off
$34.89
$45.36
Rev X High Performance Oil Additive - 4 Oz. REV0401B
Equfina
$12.99
Liqui Moly Oil Additive, Limited Warranty 22074
Carparts.com
$12.99
Liqui Moly Oil Additive, Limited Warranty 22074
Carparts.com
$17.58
Mr Gasket Zinc Engine Oil Additive
JEGS High Performance
12
$17.58
Mr Gasket Zinc Engine Oil Additive
JEGS High Performance

Shop engine oil additives that work

Sponsored
About our ads
$107.99
Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
Amazon.com
622
Free shipping
$107.99
Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
Amazon.com
622
$118.69
Tribotex Nano Oil Additive Car Engine Treatment: Add To Engine Lube - Makes High Mileage Cars Like New With A Synthetic Material (Treats One Regular
Amazon.com
1K+
Free shipping
$118.69
Tribotex Nano Oil Additive Car Engine Treatment: Add To Engine Lube - Makes High Mileage Cars Like New With A Synthetic Material (Treats One Regular
Amazon.com
1K+
$13.96
$15.97
Slick 50 Original Engine Treatment | 32 Oz., Single
Amazon.com
610
12% off
$13.96
$15.97
Slick 50 Original Engine Treatment | 32 Oz., Single
Amazon.com
610
$19.99
Slick 50 Engine Treatment 15 Oz
Ace Hardware
$19.99
Slick 50 Engine Treatment 15 Oz
Ace Hardware
$7.99
Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
Advance Auto Parts
1K+
$7.99
Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
Advance Auto Parts
1K+
$59.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive - 64 OZ
D&J Precision Machine
3K+
$59.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive - 64 OZ
D&J Precision Machine
3K+
$34.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 32 OZ
D&J Precision Machine
4K+
$34.99
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 32 OZ
D&J Precision Machine
4K+
$16.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Quart, 10001
Advance Auto Parts
796
$16.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Quart, 10001
Advance Auto Parts
796
$32.99
LIQUI MOLY Cera Tec Friction Motor Oil Additive, Compatible With All Motor Oils, 300 Ml, 20002
Advance Auto Parts
248
$32.99
LIQUI MOLY Cera Tec Friction Motor Oil Additive, Compatible With All Motor Oils, 300 Ml, 20002
Advance Auto Parts
248
$6.58
$16.54
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 32 Oz.
Walmart
184
60% off
$6.58
$16.54
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 32 Oz.
Walmart
184
$5.99
STP Oil Treatment 15.73 Oz
Ace Hardware
$5.99
STP Oil Treatment 15.73 Oz
Ace Hardware
$41.08
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 1 Gallon
Walmart
199
Free shipping
$41.08
Marvel Mystery Oil - Oil Enhancer And Fuel Treatment, 1 Gallon
Walmart
199
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
246
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
246
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
$6.98
Stp High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 Fl Oz
Walmart
269
$6.98
Stp High Mileage Oil Treatment + Stop Leak Engine Oil Additive, 15 Fl Oz
Walmart
269
$16.79
Red Line Engine Break-In Additive, 16 Ounce Bottle
Pegasus Auto Racing Supplies
187
$16.79
Red Line Engine Break-In Additive, 16 Ounce Bottle
Pegasus Auto Racing Supplies
187
$10.09
$11.09
JEGS Break-In/Engine Oil Supplement [12 Oz. Bottle]
JEGS High Performance
$10.09
$11.09
JEGS Break-In/Engine Oil Supplement [12 Oz. Bottle]
JEGS High Performance
$35.99
Hot Shots Secret FR3 Oil Additive
Mark DeCola Diesel Performance LLC
$35.99
Hot Shots Secret FR3 Oil Additive
Mark DeCola Diesel Performance LLC

  • 10 Best Engine Additives - Our #1 Pick Will Surprise You

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