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$128.98
Lucas Oil Motor Additive, Pure Synthetic Oil Stabilizer, Synthetic, 1 Gal Jug, Each
Amazon.com
3K+
Free shipping
$128.98
Lucas Oil Motor Additive, Pure Synthetic Oil Stabilizer, Synthetic, 1 Gal Jug, Each
Amazon.com
3K+
$13.98
$16.40
Slick 50 Original Engine Treatment | 32 Oz., Single
Amazon.com
610
14% off
$13.98
$16.40
Slick 50 Original Engine Treatment | 32 Oz., Single
Amazon.com
610
$59.99
Hot Shots Secret Stiction Eliminator: Engine Restorative +FR3 Nano Lubricant, Oil Additive, 64 Oz, HOTS52387
Advance Auto Parts
In store
15% Off*
Curbside
$59.99
Hot Shots Secret Stiction Eliminator: Engine Restorative +FR3 Nano Lubricant, Oil Additive, 64 Oz, HOTS52387
Advance Auto Parts
15% Off*
$17.97
$21.99
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
Amazon.com
1K+
18% off
$17.97
$21.99
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
Amazon.com
1K+
$10.99
$13.99
Sea Foam High Mileage Motor Treatment Fuel And Oil Additive, For Gas Engines Over 75,000 Miles, 16 Oz, HM16
Advance Auto Parts
In store
6
Curbside
$10.99
$13.99
Sea Foam High Mileage Motor Treatment Fuel And Oil Additive, For Gas Engines Over 75,000 Miles, 16 Oz, HM16
Advance Auto Parts
6
$32.99
LIQUI MOLY Cera Tec Friction Motor Oil Additive, 300 Ml, 20002
Advance Auto Parts
In store
15% Off*
Curbside
$32.99
LIQUI MOLY Cera Tec Friction Motor Oil Additive, 300 Ml, 20002
Advance Auto Parts
15% Off*
$59.99
Engine Oil Stop Leak (3 Oz) Re-Seal Engine Treatment, Stop Leaks And Stop Smoke Without Needing To Dismantle For Heavy Duty And Seasonal Using
Amazon.com
Free shipping
$59.99
Engine Oil Stop Leak (3 Oz) Re-Seal Engine Treatment, Stop Leaks And Stop Smoke Without Needing To Dismantle For Heavy Duty And Seasonal Using
Amazon.com
Free shipping
$5.99
STP Oil Treatment - High-Viscosity Formula Formulated For High-Mileage Engines, 66079
Advance Auto Parts
In store
15% Off*
Curbside
$5.99
STP Oil Treatment - High-Viscosity Formula Formulated For High-Mileage Engines, 66079
Advance Auto Parts
15% Off*
$9.99
Rislone High Mileage Oil Supplement Stabilizer, 16.9 Oz, 4400
Advance Auto Parts
In store
1
Curbside
$9.99
Rislone High Mileage Oil Supplement Stabilizer, 16.9 Oz, 4400
Advance Auto Parts
1
$66.63
$99.99
Hot Shot's Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment For All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity,
Amazon.com
306
Free shipping
33% off
$66.63
$99.99
Hot Shot's Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment For All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity,
Amazon.com
306
$35.68
Camguard Oil Additive (Aircraft)
Amazon.com
150
Free shipping
$35.68
Camguard Oil Additive (Aircraft)
Amazon.com
150
$9.99
LIQUI MOLY Mos2 Anti-Friction Engine Treatment, 2009
Advance Auto Parts
In store
15% Off*
Curbside
$9.99
LIQUI MOLY Mos2 Anti-Friction Engine Treatment, 2009
Advance Auto Parts
15% Off*
$25.99
Bars Leaks Oil Seal Engine Oil Burning & Leaking Repair, 16.9 Oz, OS-1
Advance Auto Parts
In store
15% Off*
Curbside
$25.99
Bars Leaks Oil Seal Engine Oil Burning & Leaking Repair, 16.9 Oz, OS-1
Advance Auto Parts
15% Off*
$22.99
Lucas Oil Products Engine Break-In Oil Additive, 16 Oz, 10063
Advance Auto Parts
In store
15% Off*
Curbside
$22.99
Lucas Oil Products Engine Break-In Oil Additive, 16 Oz, 10063
Advance Auto Parts
15% Off*
$31.00
HKS ADD-II Engine Oil Additive
Evasive Motor Sports
5
$31.00
HKS ADD-II Engine Oil Additive
Evasive Motor Sports
5
$7.99
Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
Advance Auto Parts
In store
15% Off*
Curbside
$7.99
Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
Advance Auto Parts
15% Off*
$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
$8.99
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
$12.98
Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 Oz
Walmart
In store
8
Curbside
$12.98
Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 Oz
Walmart
8
$26.28
Lucas Oil Engine Oil Additive - Heavy Duty Oil Stabilizer
eBay
Free shipping
$26.28
Lucas Oil Engine Oil Additive - Heavy Duty Oil Stabilizer
eBay
Free shipping
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
247
$20.95
COMP Cams 159: COMP Cams Engine Break-In Oil Additive
Summit Racing
247
$39.98
Zmax 51-011 - Engine & Fuel Formula Kit - Easy To Use - Reduces Carbon Build-Up & Lubricates Metal Extending Life Of Car Or Truck - Runs Efficiently,
Amazon.com
1K+
Free shipping
$39.98
Zmax 51-011 - Engine & Fuel Formula Kit - Easy To Use - Reduces Carbon Build-Up & Lubricates Metal Extending Life Of Car Or Truck - Runs Efficiently,
Amazon.com
1K+
$74.99
Zmax 58-011 - Engine & Fuel Formula Kit - Easy To Use - Reduces Carbon Build-Up & Lubricates Metal Extending Life Of Car Or Truck - Runs Efficiently,
Amazon.com
1K+
Free shipping
$74.99
Zmax 58-011 - Engine & Fuel Formula Kit - Easy To Use - Reduces Carbon Build-Up & Lubricates Metal Extending Life Of Car Or Truck - Runs Efficiently,
Amazon.com
1K+
$41.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Gallon, 10002
Advance Auto Parts
In store
15% Off*
Curbside
$41.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Gallon, 10002
Advance Auto Parts
15% Off*
$16.75
AVBLEND Engine Oil Additive 12 Oz
AircraftSpruce.com
$16.75
AVBLEND Engine Oil Additive 12 Oz
AircraftSpruce.com
$16.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Quart, 10001
Advance Auto Parts
In store
15% Off*
Curbside
$16.99
Lucas Oil Products Heavy Duty Oil Stabilizer: Extends Engine Life, 1 Quart, 10001
Advance Auto Parts
15% Off*
$46.00
Lucas Oil Engine Oil Additive - Heavy Duty Oil Stabilizer
eBay
Free shipping
$46.00
Lucas Oil Engine Oil Additive - Heavy Duty Oil Stabilizer
eBay
Free shipping
$21.85
Camguard Sml Engine Oil Additive 8Oz
AircraftSpruce.com
$21.85
Camguard Sml Engine Oil Additive 8Oz
AircraftSpruce.com
$41.25
Prolube Engin Oil Treatment 16 Oz - Engine Oil Additive For Gas &
eBay
Free shipping
$41.25
Prolube Engin Oil Treatment 16 Oz - Engine Oil Additive For Gas &
eBay
Free shipping
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    Shop engine oil additives that work

    Sponsored
    About our ads
    $128.98
    Lucas Oil Motor Additive, Pure Synthetic Oil Stabilizer, Synthetic, 1 Gal Jug, Each
    Amazon.com
    3K+
    Free shipping
    $128.98
    Lucas Oil Motor Additive, Pure Synthetic Oil Stabilizer, Synthetic, 1 Gal Jug, Each
    Amazon.com
    3K+
    $13.98
    $16.40
    Slick 50 Original Engine Treatment | 32 Oz., Single
    Amazon.com
    610
    14% off
    $13.98
    $16.40
    Slick 50 Original Engine Treatment | 32 Oz., Single
    Amazon.com
    610
    $59.99
    Hot Shots Secret Stiction Eliminator: Engine Restorative +FR3 Nano Lubricant, Oil Additive, 64 Oz, HOTS52387
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $59.99
    Hot Shots Secret Stiction Eliminator: Engine Restorative +FR3 Nano Lubricant, Oil Additive, 64 Oz, HOTS52387
    Advance Auto Parts
    15% Off*
    $17.97
    $21.99
    Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
    Amazon.com
    1K+
    18% off
    $17.97
    $21.99
    Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
    Amazon.com
    1K+
    $10.99
    $13.99
    Sea Foam High Mileage Motor Treatment Fuel And Oil Additive, For Gas Engines Over 75,000 Miles, 16 Oz, HM16
    Advance Auto Parts
    In store
    6
    Curbside
    $10.99
    $13.99
    Sea Foam High Mileage Motor Treatment Fuel And Oil Additive, For Gas Engines Over 75,000 Miles, 16 Oz, HM16
    Advance Auto Parts
    6
    $32.99
    LIQUI MOLY Cera Tec Friction Motor Oil Additive, 300 Ml, 20002
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $32.99
    LIQUI MOLY Cera Tec Friction Motor Oil Additive, 300 Ml, 20002
    Advance Auto Parts
    15% Off*
    $59.99
    Engine Oil Stop Leak (3 Oz) Re-Seal Engine Treatment, Stop Leaks And Stop Smoke Without Needing To Dismantle For Heavy Duty And Seasonal Using
    Amazon.com
    Free shipping
    $59.99
    Engine Oil Stop Leak (3 Oz) Re-Seal Engine Treatment, Stop Leaks And Stop Smoke Without Needing To Dismantle For Heavy Duty And Seasonal Using
    Amazon.com
    Free shipping
    $5.99
    STP Oil Treatment - High-Viscosity Formula Formulated For High-Mileage Engines, 66079
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $5.99
    STP Oil Treatment - High-Viscosity Formula Formulated For High-Mileage Engines, 66079
    Advance Auto Parts
    15% Off*
    $9.99
    Rislone High Mileage Oil Supplement Stabilizer, 16.9 Oz, 4400
    Advance Auto Parts
    In store
    1
    Curbside
    $9.99
    Rislone High Mileage Oil Supplement Stabilizer, 16.9 Oz, 4400
    Advance Auto Parts
    1
    $66.63
    $99.99
    Hot Shot's Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment For All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity,
    Amazon.com
    306
    Free shipping
    33% off
    $66.63
    $99.99
    Hot Shot's Secret LX4 Lubricity Extreme 1 Gallon, Fuel Treatment For All Engines, Gasoline & Diesel Additive, Fuel Additive Increases Lubricity,
    Amazon.com
    306
    $35.68
    Camguard Oil Additive (Aircraft)
    Amazon.com
    150
    Free shipping
    $35.68
    Camguard Oil Additive (Aircraft)
    Amazon.com
    150
    $9.99
    LIQUI MOLY Mos2 Anti-Friction Engine Treatment, 2009
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $9.99
    LIQUI MOLY Mos2 Anti-Friction Engine Treatment, 2009
    Advance Auto Parts
    15% Off*
    $25.99
    Bars Leaks Oil Seal Engine Oil Burning & Leaking Repair, 16.9 Oz, OS-1
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $25.99
    Bars Leaks Oil Seal Engine Oil Burning & Leaking Repair, 16.9 Oz, OS-1
    Advance Auto Parts
    15% Off*
    $22.99
    Lucas Oil Products Engine Break-In Oil Additive, 16 Oz, 10063
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $22.99
    Lucas Oil Products Engine Break-In Oil Additive, 16 Oz, 10063
    Advance Auto Parts
    15% Off*
    $31.00
    HKS ADD-II Engine Oil Additive
    Evasive Motor Sports
    5
    $31.00
    HKS ADD-II Engine Oil Additive
    Evasive Motor Sports
    5
    $7.99
    Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
    Advance Auto Parts
    In store
    15% Off*
    Curbside
    $7.99
    Rislone High Mileage Engine Treatment Conditioner And Cleaner, 16.9 Oz, 4102
    Advance Auto Parts
    15% Off*
    $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
    $8.99
    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