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$14.99
Bar's Leaks 1000 High Mileage Engine Repair, 16.9 Oz | Restores Performance, Increases Compression & Horsepower, Stops Leaks, Noise & Smoking
Amazon.com
2K+
$14.99
Bar's Leaks 1000 High Mileage Engine Repair, 16.9 Oz | Restores Performance, Increases Compression & Horsepower, Stops Leaks, Noise & Smoking
Amazon.com
2K+
$38.45
Motorkote MK-HL32-06 Heavy Duty Hyper Lubricant Engine Treatment, 32-Ounce, Single, Black
Amazon.com
Free shipping
$38.45
Motorkote MK-HL32-06 Heavy Duty Hyper Lubricant Engine Treatment, 32-Ounce, Single, Black
Amazon.com
Free shipping
$22.99
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
Amazon.com
$22.99
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
Amazon.com
$19.60
$29.99
Motorkote Hyper Lubricant Engine Treatment, MK-HL16-06, 16-Ounce, Single
Amazon.com
2K+
34% off
$19.60
$29.99
Motorkote Hyper Lubricant Engine Treatment, MK-HL16-06, 16-Ounce, Single
Amazon.com
2K+
$18.91
Complete Engine Treatment, Cleans & Lubricates, 16-Oz.
Amazon.com
279
Free shipping
$18.91
Complete Engine Treatment, Cleans & Lubricates, 16-Oz.
Amazon.com
279
$11.99
Bar's Leaks Rislone 4405 Engine Oil Supplement Concentrate With Zinc Treatment - 11 Oz, Yellow
Amazon.com
1K+
$11.99
Bar's Leaks Rislone 4405 Engine Oil Supplement Concentrate With Zinc Treatment - 11 Oz, Yellow
Amazon.com
1K+
$10.99
$14.99
Sea Foam Truck And SUV Motor Treatment Fuel And Oil Additive, For All Gas And Diesel Engines, 20 Oz., ST20
Advance Auto Parts
312
26% off
$10.99
$14.99
Sea Foam Truck And SUV Motor Treatment Fuel And Oil Additive, For All Gas And Diesel Engines, 20 Oz., ST20
Advance Auto Parts
312
$20.99
CRC Engine Motor Treatment Carbon Clean-Out 16Oz 05316
Amazon.com
Free shipping
$20.99
CRC Engine Motor Treatment Carbon Clean-Out 16Oz 05316
Amazon.com
Free shipping
$14.95
Lucas 10016 Complete Engine Treatment Fuel Additive 1 Pt/16 Oz All
eBay
10
Free shipping
$14.95
Lucas 10016 Complete Engine Treatment Fuel Additive 1 Pt/16 Oz All
eBay
10
$109.28
Liquimoly 20872 Engine Protection Oil Additive Motor Protector 16.9 Fl Oz (500 Ml)
Everymarket INC
$109.28
Liquimoly 20872 Engine Protection Oil Additive Motor Protector 16.9 Fl Oz (500 Ml)
Everymarket INC
$11.99
$12.99
Marvel Mystery Oil 53835 Synthetic Motor Treatment, Removes And Prevents Sludge Build Up And Leaks, Increases Life Of Engine, Extends Oil Change
Amazon.com
77
$11.99
$12.99
Marvel Mystery Oil 53835 Synthetic Motor Treatment, Removes And Prevents Sludge Build Up And Leaks, Increases Life Of Engine, Extends Oil Change
Amazon.com
77
$15.97
Dura Lube Engine Treatment | 32 Oz., Single
Amazon.com
400
$15.97
Dura Lube Engine Treatment | 32 Oz., Single
Amazon.com
400
$17.99
$21.99
Bar's Leaks OS-1 Oil Seal Engine Oil Burning And Leak Repair, 16.9 Oz.
Amazon.com
18% off
$17.99
$21.99
Bar's Leaks OS-1 Oil Seal Engine Oil Burning And Leak Repair, 16.9 Oz.
Amazon.com
$22.99
Lucas Oil Products Engine Break-In Oil Additive/TB Zinc-Plus, 16 Oz., 10063
Advance Auto Parts
$22.99
Lucas Oil Products Engine Break-In Oil Additive/TB Zinc-Plus, 16 Oz., 10063
Advance Auto Parts
$7.29
$7.69
MOTOR MEDIC Oil Additive, 14 Oz. Size, Yellow, M1815
Zoro.com
1
$7.29
$7.69
MOTOR MEDIC Oil Additive, 14 Oz. Size, Yellow, M1815
Zoro.com
1
$7.99
Marvel Mystery Oil MM12R Oil Enhancer & Fuel Treatment (16Oz.)
Advance Auto Parts
2K+
$7.99
Marvel Mystery Oil MM12R Oil Enhancer & Fuel Treatment (16Oz.)
Advance Auto Parts
2K+
$10.99
Lucas Oil 10016-1: Lucas Complete Engine Treatment
Summit Racing
2
$10.99
Lucas Oil 10016-1: Lucas Complete Engine Treatment
Summit Racing
2
$15.94
$17.99
Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart
Amazon.com
2K+
11% off
$15.94
$17.99
Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart
Amazon.com
2K+
$17.99
Schaeffer Manufacturing Co. 0132-023S Moly EP Oil Treatment, 1-Pint Bottle
Amazon.com
Free shipping
$17.99
Schaeffer Manufacturing Co. 0132-023S Moly EP Oil Treatment, 1-Pint Bottle
Amazon.com
Free shipping
$83.88
Lucas Oil LUC10016 Products Complete Engine Treatment, 16 Fl. Oz, 1 Pack
eBay
Free shipping
$83.88
Lucas Oil LUC10016 Products Complete Engine Treatment, 16 Fl. Oz, 1 Pack
eBay
Free shipping
$17.75
ZP-700 Engine Oil Treatment With Moly 12 Oz
Amazon.com
Free shipping
$17.75
ZP-700 Engine Oil Treatment With Moly 12 Oz
Amazon.com
Free shipping
$4.10
Motormedic 14 Oz. Engine Treatment/Additive
May Custom Jersey
$4.10
Motormedic 14 Oz. Engine Treatment/Additive
May Custom Jersey
$4.10
Motormedic 14 Oz. Engine Treatment/Additive
Mc Mu
$4.10
Motormedic 14 Oz. Engine Treatment/Additive
Mc Mu
$8.50
Lucas Oil 1 Qt. Engine Treatment/Additive
May Custom Jersey
$8.50
Lucas Oil 1 Qt. Engine Treatment/Additive
May Custom Jersey
$9.19
$10.27
Rislone 4447 High Mileage Compression Repair With Ring Seal, 16.9 Oz.
Amazon.com
10% off
$9.19
$10.27
Rislone 4447 High Mileage Compression Repair With Ring Seal, 16.9 Oz.
Amazon.com
$7.00
Sea Foam 16 Oz. Engine Treatment/Additive
Mc Mu
$7.00
Sea Foam 16 Oz. Engine Treatment/Additive
Mc Mu
$12.58
Sea Foam Motor Treatment 16 Oz. Clear SF16
DkHardware.com
5K+
$12.58
Sea Foam Motor Treatment 16 Oz. Clear SF16
DkHardware.com
5K+
$5.99
STP Oil Treatment - High-Viscosity Formula Formulated For High-Mileage Engines, 66079
Advance Auto Parts
$5.99
STP Oil Treatment - High-Viscosity Formula Formulated For High-Mileage Engines, 66079
Advance Auto Parts
$20.91
TKO Engine Oil Treatment 1 Pint
americanvaluesproducts.com
$20.91
TKO Engine Oil Treatment 1 Pint
americanvaluesproducts.com
$15.75
Lucas Oil 10130-1: Lucas Synthetic Oil Stabilizer
Summit Racing
14
$15.75
Lucas Oil 10130-1: Lucas Synthetic Oil Stabilizer
Summit Racing
14
$42.75
Zmax 55-032 - Multi-Purpose Formula Treatment For Engine, Fuel, Transmission & Power Steering - Reduces Carbon Build-Up - Lubricates Metal - Improves
Amazon.com
365
Free shipping
$42.75
Zmax 55-032 - Multi-Purpose Formula Treatment For Engine, Fuel, Transmission & Power Steering - Reduces Carbon Build-Up - Lubricates Metal - Improves
Amazon.com
365
$14.29
STP Ceramic Oil Treatment, Protective Coating And Anti-Friction Technology, 15 Oz (19387)
Amazon.com
$14.29
STP Ceramic Oil Treatment, Protective Coating And Anti-Friction Technology, 15 Oz (19387)
Amazon.com
$27.73
$32.48
Acdelco GM Original Equipment 10-4021 (88862587) Motor Oil Supplement Assembly Lubricant - 16 Oz
Amazon.com
16
14% off
$27.73
$32.48
Acdelco GM Original Equipment 10-4021 (88862587) Motor Oil Supplement Assembly Lubricant - 16 Oz
Amazon.com
16
$27.99
Liqui Moly 300Ml Cera Tec
Amazon.com
68
$27.99
Liqui Moly 300Ml Cera Tec
Amazon.com
68
$7.99
Liqui Moly 300Ml Mos2 Anti-Friction Engine Treatment
GenRacer
$7.99
Liqui Moly 300Ml Mos2 Anti-Friction Engine Treatment
GenRacer
$7.99
STP High Mileage Oil Treatment, 15 Oz., 78595
Advance Auto Parts
$7.99
STP High Mileage Oil Treatment, 15 Oz., 78595
Advance Auto Parts
Lucas Oil Complete Engine Treatment Demo: How to Improve Engine Performance & Protection
2:14
Lucas Oil Complete Engine Treatment Demo: How to Improve Engine Performance & Protection
97.4K viewsMar 24, 2017
YouTubeLucas Oil
13 Engine Additives That Work (And 5 That’ll Kill Your Car)
19:54
13 Engine Additives That Work (And 5 That’ll Kill Your Car)
911.6K views10 months ago
YouTubeCar Care Clues
Everything about the Engine Flush & Additive-S Flush
5:09
Everything about the Engine Flush & Additive-S Flush
53.2K viewsJun 27, 2024
YouTubeEurol
ADDING MoS2 ENGINE OIL ADDITIVE IN ENGINE | LIQUI MOLY MoS2 ADDITIVE REVIEW YAMAHA FZ 25 MOTORCYCLE
3:44
ADDING MoS2 ENGINE OIL ADDITIVE IN ENGINE | LIQUI MOLY MoS2 ADDITIVE REVIEW YAMAHA FZ 25 MOTORCYCLE
160.5K viewsMay 11, 2019
YouTubeThe Sportztourer
10 Best Engine Additives! That Actually Work-[Mechanics Don’t Want You to Know]
4:37
10 Best Engine Additives! That Actually Work-[Mechanics Don’t Want You to Know]
816 views7 months ago
YouTubeConsumer Side
The BEST ADDITIVES for Your Diesel Engine!
4:18
The BEST ADDITIVES for Your Diesel Engine!
104.1K viewsJul 18, 2021
YouTubeECS Tuning
Top 10 Engine Additives That Actually Work (and 5 That Don’t)
9:29
Top 10 Engine Additives That Actually Work (and 5 That Don’t)
508.1K views10 months ago
YouTubeCar Care Pro
21:27
13 Additives Mechanics Don't Want You to Use
16.6K views7 months ago
YouTubeCar Care Clues
1:58
Introduction to LIQUI MOLY MoS2 Anti-Friction Engine Treatment (Art. 2009)
94.7K viewsAug 30, 2018
YouTubeLIQUI MOLY
1:08
Stacey David explains the importance of diesel fuel additives
167.1K viewsSep 11, 2018
YouTubeHot Shot's Secret
12:17
The 10 Best Engine Additives That Really Work (and 5 You Must Avoid)
4.7K views10 months ago
YouTubeMOTOR WUT
7:37
Engine Oil Additives to Improve Engine Life
54.7K viewsJul 11, 2021
YouTubeECS Tuning
26:12
TOP 13 Motor-Additive, die wirklich wirken und 5, die deinen Motor ruinieren können (Praxisgetestet)
7.4K views9 months ago
YouTubeAbsturz Akten
13:17
EXPOSED: The TRUTH About Diesel Additives
922.1K viewsMar 22, 2025
YouTubeThe Motor Oil Geek
3:23
How to stop engine knock or ticking with Lucas TB Zinc plus
232K viewsDec 11, 2019
YouTubeNATES INTERACTIVE AUTO
1:23
Increase your engine life with Ceratec from LIQUI MOLY | Reduces Friction | Better Fuel Consumption
199.7K viewsMar 23, 2023
YouTubeLIQUI MOLY South Africa
12:30
Seafoam motor treatment, should you use it? How should you use it? - Auto Information Series
1.2M viewsJul 1, 2014
YouTubeRobert DIY
24:33
Mechaniker-Geheimnisse: 13 Additive, die dein Auto retten – Spare Tausende € an Reparaturen!
2.6K views7 months ago
YouTubeSchrauberTipps
9:08
Top 10 Engine Additives That Actually Work and 5 That Don’t.
16.9K views10 months ago
YouTubeMOTOR HOLLOW
1:39
LIQUI MOLY Diesel Engine System Cleaner (21491) EN
427K viewsMay 27, 2021
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26:58
MOTOR OIL ADDITIVES: Microceramics, Engine Flush, MoS2, Engine Sealant | MOTOR OIL GURU explains!...
122.4K viewsDec 22, 2022
YouTubeVOLLLAST - Alles rund ums Automobil
2:02
REVIEW- Super Tech Motor Treatment — Automotive Additive for Gas, Diesel, & Oil- IS THIS ANY GOOD?
3.3K viewsJul 30, 2023
YouTubePeter L
8:26
Does Restore Work? Will it Improve Engine Cylinder Compression?
1.4M viewsJul 13, 2017
YouTubeProject Farm
1:37
Review - Liqui Moly MoS2 Friction Reducer Oil Additive
58.5K viewsApr 8, 2018
YouTubeThat Car Channel
19:04
Testing the Best Motor Oil Additives
12K viewsAug 18, 2022
YouTubeAgzaga
16:26
The New Additive Mechanics Don’t Want You to Know (This Will Save You Thousands in Car Repairs)
110.1K views6 months ago
YouTubeScotty Kilmer
27:33
Motor Oil & Fuel Additives: Just a WASTE of MONEY?
2.4M viewsMay 13, 2024
YouTubeThe Motor Oil Geek
10:10
This Additive Changes Everything
781.6K viewsMay 11, 2022
YouTubeScotty Kilmer
1:35
Humble Mechanic - LIQUI MOLY - Valve Train Noise
169.8K viewsAug 19, 2020
YouTubeLIQUI MOLY
22:53
Carb Cleaners and Fuel Additives: What Works?
192.6K viewsJun 18, 2017
YouTubeTheMotorcycleMD
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Shop motor additive

Sponsored
About our ads
$14.99
Bar's Leaks 1000 High Mileage Engine Repair, 16.9 Oz | Restores Performance, Increases Compression & Horsepower, Stops Leaks, Noise & Smoking
Amazon.com
2K+
$14.99
Bar's Leaks 1000 High Mileage Engine Repair, 16.9 Oz | Restores Performance, Increases Compression & Horsepower, Stops Leaks, Noise & Smoking
Amazon.com
2K+
$38.45
Motorkote MK-HL32-06 Heavy Duty Hyper Lubricant Engine Treatment, 32-Ounce, Single, Black
Amazon.com
Free shipping
$38.45
Motorkote MK-HL32-06 Heavy Duty Hyper Lubricant Engine Treatment, 32-Ounce, Single, Black
Amazon.com
Free shipping
$22.99
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
Amazon.com
$22.99
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce
Amazon.com
$19.60
$29.99
Motorkote Hyper Lubricant Engine Treatment, MK-HL16-06, 16-Ounce, Single
Amazon.com
2K+
34% off
$19.60
$29.99
Motorkote Hyper Lubricant Engine Treatment, MK-HL16-06, 16-Ounce, Single
Amazon.com
2K+
$18.91
Complete Engine Treatment, Cleans & Lubricates, 16-Oz.
Amazon.com
279
Free shipping
$18.91
Complete Engine Treatment, Cleans & Lubricates, 16-Oz.
Amazon.com
279
$11.99
Bar's Leaks Rislone 4405 Engine Oil Supplement Concentrate With Zinc Treatment - 11 Oz, Yellow
Amazon.com
1K+
$11.99
Bar's Leaks Rislone 4405 Engine Oil Supplement Concentrate With Zinc Treatment - 11 Oz, Yellow
Amazon.com
1K+
$10.99
$14.99
Sea Foam Truck And SUV Motor Treatment Fuel And Oil Additive, For All Gas And Diesel Engines, 20 Oz., ST20
Advance Auto Parts
312
26% off
$10.99
$14.99
Sea Foam Truck And SUV Motor Treatment Fuel And Oil Additive, For All Gas And Diesel Engines, 20 Oz., ST20
Advance Auto Parts
312
$20.99
CRC Engine Motor Treatment Carbon Clean-Out 16Oz 05316
Amazon.com
Free shipping
$20.99
CRC Engine Motor Treatment Carbon Clean-Out 16Oz 05316
Amazon.com
Free shipping
$14.95
Lucas 10016 Complete Engine Treatment Fuel Additive 1 Pt/16 Oz All
eBay
10
Free shipping
$14.95
Lucas 10016 Complete Engine Treatment Fuel Additive 1 Pt/16 Oz All
eBay
10
$109.28
Liquimoly 20872 Engine Protection Oil Additive Motor Protector 16.9 Fl Oz (500 Ml)
Everymarket INC
$109.28
Liquimoly 20872 Engine Protection Oil Additive Motor Protector 16.9 Fl Oz (500 Ml)
Everymarket INC
$11.99
$12.99
Marvel Mystery Oil 53835 Synthetic Motor Treatment, Removes And Prevents Sludge Build Up And Leaks, Increases Life Of Engine, Extends Oil Change
Amazon.com
77
$11.99
$12.99
Marvel Mystery Oil 53835 Synthetic Motor Treatment, Removes And Prevents Sludge Build Up And Leaks, Increases Life Of Engine, Extends Oil Change
Amazon.com
77
$15.97
Dura Lube Engine Treatment | 32 Oz., Single
Amazon.com
400
$15.97
Dura Lube Engine Treatment | 32 Oz., Single
Amazon.com
400
$17.99
$21.99
Bar's Leaks OS-1 Oil Seal Engine Oil Burning And Leak Repair, 16.9 Oz.
Amazon.com
18% off
$17.99
$21.99
Bar's Leaks OS-1 Oil Seal Engine Oil Burning And Leak Repair, 16.9 Oz.
Amazon.com
$22.99
Lucas Oil Products Engine Break-In Oil Additive/TB Zinc-Plus, 16 Oz., 10063
Advance Auto Parts
$22.99
Lucas Oil Products Engine Break-In Oil Additive/TB Zinc-Plus, 16 Oz., 10063
Advance Auto Parts
$7.29
$7.69
MOTOR MEDIC Oil Additive, 14 Oz. Size, Yellow, M1815
Zoro.com
1
$7.29
$7.69
MOTOR MEDIC Oil Additive, 14 Oz. Size, Yellow, M1815
Zoro.com
1
$7.99
Marvel Mystery Oil MM12R Oil Enhancer & Fuel Treatment (16Oz.)
Advance Auto Parts
2K+
$7.99
Marvel Mystery Oil MM12R Oil Enhancer & Fuel Treatment (16Oz.)
Advance Auto Parts
2K+
$10.99
Lucas Oil 10016-1: Lucas Complete Engine Treatment
Summit Racing
2
$10.99
Lucas Oil 10016-1: Lucas Complete Engine Treatment
Summit Racing
2
$15.94
$17.99
Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart
Amazon.com
2K+
11% off
$15.94
$17.99
Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart
Amazon.com
2K+