Shop engine oil additives

Sponsored
About our ads
$19.99
Slick 50 Engine Treatment 15 Oz
Ace Hardware
306
$19.99
Slick 50 Engine Treatment 15 Oz
Ace Hardware
306
$19.49
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 16 OZ
D&J Precision Machine
3K+
$19.49
Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 16 OZ
D&J Precision Machine
3K+
$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
$107.99
Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
Amazon.com
587
Free shipping
$107.99
Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
Amazon.com
587
$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*
$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*
$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+
$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*
$147.52
True Brand Engine Max Treatment & Oil Stabilizer
Santie Wholesale Oil Company
$147.52
True Brand Engine Max Treatment & Oil Stabilizer
Santie Wholesale Oil Company
$7.00
Sea Foam 16 Oz. Engine Treatment/Additive
iverybers.com
5K+
Free shipping
$7.00
Sea Foam 16 Oz. Engine Treatment/Additive
iverybers.com
5K+
$56.99
Crower 86092: Crower Zddplus Motor Oil Additive
Summit Racing
20
$56.99
Crower 86092: Crower Zddplus Motor Oil Additive
Summit Racing
20
$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
$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
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
757
$15.99
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
Ace Hardware
757
$5.99
STP Oil Treatment 15.73 Oz
Ace Hardware
236
$5.99
STP Oil Treatment 15.73 Oz
Ace Hardware
236
$10.64
Marvel Mystery Oil Oil Additive: Motor Treatment, 32 Fl Oz Container Size Model: MM13R
Grainger
1K+
$10.64
Marvel Mystery Oil Oil Additive: Motor Treatment, 32 Fl Oz Container Size Model: MM13R
Grainger
1K+
$39.40
Marvel Mystery Oil Oil Additive: Motor Treatment, 1 Gal Container Size Model: MM14R
Grainger
589
$39.40
Marvel Mystery Oil Oil Additive: Motor Treatment, 1 Gal Container Size Model: MM14R
Grainger
589
$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
$31.99
Hot Shot's Secret HSSFR332Z: Hot Shot's Secret FR3 Oil Additive
Summit Racing
2
$31.99
Hot Shot's Secret HSSFR332Z: Hot Shot's Secret FR3 Oil Additive
Summit Racing
2
$12.99
$17.99
Eastwood 4 Oz. ZDDP Oil Additive
Classic Muscle Parts
13
27% off
$12.99
$17.99
Eastwood 4 Oz. ZDDP Oil Additive
Classic Muscle Parts
13
$11.20
Rislone Oil Additive: Engine Oil Supplement With Zinc Treatment, 11 Fl Oz Container Size Model: 4405
Grainger
$11.20
Rislone Oil Additive: Engine Oil Supplement With Zinc Treatment, 11 Fl Oz Container Size Model: 4405
Grainger
$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
$19.45
Driven Racing Oil 12 Oz Coolant Additive Proprietary Formula Composition 50030 - 82451824
Penn Tool Co
9
$19.45
Driven Racing Oil 12 Oz Coolant Additive Proprietary Formula Composition 50030 - 82451824
Penn Tool Co
9
$111.95
Liqui Moly 20004 Hydraulic Lifter Additive 300Ml Engine Noise Reducer
eBay
106
$111.95
Liqui Moly 20004 Hydraulic Lifter Additive 300Ml Engine Noise Reducer
eBay
106
$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
$4.10
Motormedic 14 Oz. Engine Treatment/Additive
WhiteStyle
$4.10
Motormedic 14 Oz. Engine Treatment/Additive
WhiteStyle
$54.79
$82.19
Lucas 10063 Engine Break-In Oil Additive
hardclikk.com
33% off
$54.79
$82.19
Lucas 10063 Engine Break-In Oil Additive
hardclikk.com
$31.00
HKS ADD-II Engine Oil Additive 200Ml
Berry Performance Sales Ads
30-day returns (most items)
$31.00
HKS ADD-II Engine Oil Additive 200Ml
Berry Performance Sales Ads
30-day returns
$16.58
AVBLEND Aircraft Engine Oil Additive - 12 Oz Bottle
SkyGeek.com
$16.58
AVBLEND Aircraft Engine Oil Additive - 12 Oz Bottle
SkyGeek.com
$10.99
Seafoam Sea Foam Motor Treatment, Size 16 Oz | Overton's
Overton's
5K+
$10.99
Seafoam Sea Foam Motor Treatment, Size 16 Oz | Overton's
Overton's
5K+
$8.33
$9.25
STA-BIL Fogging Oil-Dirtbike Engine Oil Additive 22001
Motosport
$8.33
$9.25
STA-BIL Fogging Oil-Dirtbike Engine Oil Additive 22001
Motosport
$33.13
$44.40
Tribotex Small Oil Additive Engine Treatment: Add To Engine Oil - Makes High New
shedfriends
25% off
$33.13
$44.40
Tribotex Small Oil Additive Engine Treatment: Add To Engine Oil - Makes High New
shedfriends
$47.81
1 Gal. Oil Additive
Northern Safety Co., Inc.
30-day returns (most items)
$47.81
1 Gal. Oil Additive
Northern Safety Co., Inc.
30-day returns
$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
$10.99
Bars Leaks 1000 Oil Additive
PartsVia.com
$10.99
Bars Leaks 1000 Oil Additive
PartsVia.com
$10.99
Bars Leaks 4416 Oil Additive
PartsVia.com
$10.99
Bars Leaks 4416 Oil Additive
PartsVia.com
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    Shop engine oil additives

    Sponsored
    About our ads
    $19.99
    Slick 50 Engine Treatment 15 Oz
    Ace Hardware
    306
    $19.99
    Slick 50 Engine Treatment 15 Oz
    Ace Hardware
    306
    $19.49
    Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 16 OZ
    D&J Precision Machine
    3K+
    $19.49
    Hot Shot's Secret STICTION ELIMINATOR Engine Oil Additive- 16 OZ
    D&J Precision Machine
    3K+
    $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
    $107.99
    Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
    Amazon.com
    587
    Free shipping
    $107.99
    Slick 50 Original Engine Treatment | 32 Oz., 6-Pack
    Amazon.com
    587
    $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*
    $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*
    $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+
    $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*
    $147.52
    True Brand Engine Max Treatment & Oil Stabilizer
    Santie Wholesale Oil Company
    $147.52
    True Brand Engine Max Treatment & Oil Stabilizer
    Santie Wholesale Oil Company
    $7.00
    Sea Foam 16 Oz. Engine Treatment/Additive
    iverybers.com
    5K+
    Free shipping
    $7.00
    Sea Foam 16 Oz. Engine Treatment/Additive
    iverybers.com
    5K+
    $56.99
    Crower 86092: Crower Zddplus Motor Oil Additive
    Summit Racing
    20
    $56.99
    Crower 86092: Crower Zddplus Motor Oil Additive
    Summit Racing
    20
    $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
    $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
    $15.99
    Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
    Ace Hardware
    757
    $15.99
    Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 Oz
    Ace Hardware
    757
    $5.99
    STP Oil Treatment 15.73 Oz
    Ace Hardware
    236
    $5.99
    STP Oil Treatment 15.73 Oz
    Ace Hardware
    236
    $10.64
    Marvel Mystery Oil Oil Additive: Motor Treatment, 32 Fl Oz Container Size Model: MM13R
    Grainger
    1K+
    $10.64
    Marvel Mystery Oil Oil Additive: Motor Treatment, 32 Fl Oz Container Size Model: MM13R
    Grainger
    1K+
    $39.40
    Marvel Mystery Oil Oil Additive: Motor Treatment, 1 Gal Container Size Model: MM14R
    Grainger
    589
    $39.40
    Marvel Mystery Oil Oil Additive: Motor Treatment, 1 Gal Container Size Model: MM14R
    Grainger
    589
    $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