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Additives in Oils and Fluids

Uses item details. Price when purchased online

100+ bought since yesterday BlueDEF Diesel Exhaust Fluid, 2.5 gal

100+ bought since yesterday
BlueDEF Diesel Exhaust Fluid, 2.5 gal
Available in additional 4 options
$17975.6 ¢/fl ozOptions from $17.97 – $71.88
BlueDEF Diesel Exhaust Fluid, 2.5 gal
4.7 out of 5 Stars. 2771 reviews
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Overall pick Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz

Overall pick
Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz
Available in additional 5 options
Now$848$9.9953.0 ¢/fl ozYou save$1.51Options from $8.48 – $203.52
Sea Foam SF16 Motor Treatment Automotive Additive, 16 oz
4.8 out of 5 Stars. 6252 reviews
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100+ bought since yesterday Chevron Techron Complete Fuel System Cleaner, 10 oz

100+ bought since yesterday
Chevron Techron Complete Fuel System Cleaner, 10 oz
$83883.8 ¢/fl oz
Chevron Techron Complete Fuel System Cleaner, 10 oz
4.8 out of 5 Stars. 1784 reviews
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Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive

Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive
Available in additional 3 options
$356827.9 ¢/fl ozOptions from $35.68 – $214.08
Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive
4.8 out of 5 Stars. 694 reviews
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Diesel Kleen + Cetane Boost 64-oz 6/1 per Case

Diesel Kleen + Cetane Boost 64-oz 6/1 per Case
Sponsored
Now$2125$58.9733.2 ¢/fl ozYou save$37.72Options from $21.25 – $127.50
Diesel Kleen + Cetane Boost 64-oz 6/1 per Case
4.7 out of 5 Stars. 359 reviews
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Valvoline Restore & Protect Fuel System Cleaner - 12 Fl oz, 25204

Valvoline Restore & Protect Fuel System Cleaner - 12 Fl oz, 25204
Sponsored
$119799.8 ¢/oz
Valvoline Restore & Protect Fuel System Cleaner - 12 Fl oz, 25204
5 out of 5 Stars. 4 reviews
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100+ bought since yesterday Chevron Techron Complete Fuel System Cleaner, 10 oz

100+ bought since yesterday
Chevron Techron Complete Fuel System Cleaner, 10 oz
Sponsored
$83883.8 ¢/fl oz
Chevron Techron Complete Fuel System Cleaner, 10 oz
4.8 out of 5 Stars. 1784 reviews
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Chevron Techron High Mileage Fuel System Cleaner, 12 oz

Chevron Techron High Mileage Fuel System Cleaner, 12 oz
Sponsored
$103886.5 ¢/fl ozOptions from $10.38 – $249.12
Chevron Techron High Mileage Fuel System Cleaner, 12 oz
4.7 out of 5 Stars. 446 reviews
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100+ bought since yesterday Super Tech Multi-Mix 40:1/50:1 2-Cycle Premixed Small Engine Fuel 32 oz container

100+ bought since yesterday
Super Tech Multi-Mix 40:1/50:1 2-Cycle Premixed Small Engine Fuel 32 oz container
Available in additional 2 options
$58818.4 ¢/fl ozOptions from $5.88 – $11.76
Super Tech Multi-Mix 40:1/50:1 2-Cycle Premixed Small Engine Fuel 32 oz container
4.8 out of 5 Stars. 1173 reviews
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Fuel Power 00100 Diesel & Gas Fuel Treatment 8 oz. (Pack of 6)

Fuel Power 00100 Diesel & Gas Fuel Treatment  8 oz. (Pack of 6)
$5800
Fuel Power 00100 Diesel & Gas Fuel Treatment 8 oz. (Pack of 6)
5 out of 5 Stars. 1 reviews
Free shipping, arrives in 3+ days

Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz

Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
Sponsored
$1954$1.22/fl ozOptions from $19.54 – $468.96
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
4.2 out of 5 Stars. 817 reviews
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Best seller Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 fl oz

Best seller
Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 fl oz
Sponsored
$169985.0 ¢/fl ozOptions from $16.99 – $279.36
Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 fl oz
4.6 out of 5 Stars. 929 reviews
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Best seller Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz

Best seller
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz
Available in additional 6 options
$2794$1.75/ozOptions from $27.94 – $130.27
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz
4.4 out of 5 Stars. 250 reviews
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Best seller Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz

Best seller
Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
Available in additional 5 options
$144445.1 ¢/fl ozOptions from $14.44 – $346.56
Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
4.8 out of 5 Stars. 1104 reviews
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Diesel Kleen + Cetane Boost 64-oz 6/1 per Case

Diesel Kleen + Cetane Boost 64-oz 6/1 per Case
Available in additional 3 options
Now$2125$58.9733.2 ¢/fl ozYou save$37.72Options from $21.25 – $127.50
Diesel Kleen + Cetane Boost 64-oz 6/1 per Case
4.7 out of 5 Stars. 359 reviews
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Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.

Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
Available in additional 4 options
$65820.6 ¢/fl ozOptions from $6.58 – $78.96
Marvel Mystery Oil - Oil Enhancer and Fuel Treatment, 32 oz.
4.8 out of 5 Stars. 1167 reviews
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Lucas Oil 10026 Fuel Treatments, Octane Booster Bottle, 15 Ounce Bottle 0.95 Pound Gas Fuel Type

Lucas Oil 10026 Fuel Treatments, Octane Booster Bottle, 15 Ounce Bottle 0.95 Pound Gas Fuel Type
Available in additional 2 options
$88458.9 ¢/fl ozOptions from $8.84 – $212.16
Lucas Oil 10026 Fuel Treatments, Octane Booster Bottle, 15 Ounce Bottle 0.95 Pound Gas Fuel Type
4.8 out of 5 Stars. 217 reviews
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100+ bought since yesterday Lucas Oil 10020 Fuel Treatment 5.25 Ounce

100+ bought since yesterday
Lucas Oil 10020 Fuel Treatment 5.25 Ounce
Available in additional 5 options
$578$1.10/fl ozOptions from $5.78 – $138.96
Lucas Oil 10020 Fuel Treatment 5.25 Ounce
4.8 out of 5 Stars. 1791 reviews
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6 LIQUI MOLY MOTORCYCLE 4T BIKE-ADDITIVE Fuel Injection System Cleaner - 20048

6 LIQUI MOLY MOTORCYCLE 4T BIKE-ADDITIVE Fuel Injection System Cleaner - 20048
$2399
6 LIQUI MOLY MOTORCYCLE 4T BIKE-ADDITIVE Fuel Injection System Cleaner - 20048
Free shipping, arrives in 3+ days

Best seller Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 fl oz

Best seller
Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 fl oz
Available in additional 5 options
$169985.0 ¢/fl ozOptions from $16.99 – $279.36
Royal Purple Max-Clean Fuel System Cleaner & Stabilizer, 20 fl oz
4.6 out of 5 Stars. 929 reviews
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Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive

Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive
Sponsored
$356827.9 ¢/fl ozOptions from $35.68 – $214.08
Lucas Oil 10002 Heavy Duty Oil Stabilizer One Gallon Automotive Additive
4.8 out of 5 Stars. 694 reviews
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Delivery as soon as 24 minsFree shipping, arrives todayFree pickup as soon as 11am

Best seller Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz

Best seller
Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
Sponsored
$144445.1 ¢/fl ozOptions from $14.44 – $346.56
Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
4.8 out of 5 Stars. 1104 reviews
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Sea Foam High Mileage Motor Treatment

Sea Foam High Mileage Motor Treatment
Available in additional 5 options
Now$1188$13.9974.3 ¢/fl ozYou save$2.11Options from $11.88 – $142.56
Sea Foam High Mileage Motor Treatment
4.8 out of 5 Stars. 937 reviews
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Berryman Products 0110 B-12 Chemtool Carburetor & Engine Cleaner for Cars & Trucks, 10 oz.

Berryman Products 0110 B-12 Chemtool Carburetor & Engine Cleaner for Cars & Trucks, 10 oz.
Available in additional 5 options
$531Options from $5.31 – $127.44
Berryman Products 0110 B-12 Chemtool Carburetor & Engine Cleaner for Cars & Trucks, 10 oz.
3.7 out of 5 Stars. 3 reviews
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Shipping, arrives Tue, Jul 28

Super Tech Fuel Treatment 2-Piece Bundle

Super Tech Fuel Treatment 2-Piece Bundle
$435
Super Tech Fuel Treatment 2-Piece Bundle
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Berryman B-12 Chemtool Fuel System Cleaner, 15 oz

Berryman B-12 Chemtool Fuel System Cleaner, 15 oz
Available in additional 5 options
$49733.1 ¢/ozOptions from $4.97 – $119.28
Berryman B-12 Chemtool Fuel System Cleaner, 15 oz
4.8 out of 5 Stars. 1519 reviews
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Best seller (2 pack) Super Tech Carburetor and Air Intake Cleaner, 12.5 oz

Best seller
(2 pack) Super Tech Carburetor and Air Intake Cleaner, 12.5 oz
Available in additional 5 options
$59423.8 ¢/ozOptions from $5.94 – $71.28
(2 pack) Super Tech Carburetor and Air Intake Cleaner, 12.5 oz
4.6 out of 5 Stars. 839 reviews
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Shipping, arrives Tue, Jul 28

Restore 8-Cylinder Formula Engine Restorer and Lubricant - 16 fl oz

Restore 8-Cylinder Formula Engine Restorer and Lubricant - 16 fl oz
Available in additional 4 options
$118874.3 ¢/ozOptions from $11.88 – $23.76
Restore 8-Cylinder Formula Engine Restorer and Lubricant - 16 fl oz
4.7 out of 5 Stars. 192 reviews
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Techron Concentrate Plus Complete Fuel System Cleaner 20oz bottle

Techron Concentrate Plus Complete Fuel System Cleaner 20oz bottle
Available in additional 5 options
Now$1699$20.0085.0 ¢/fl ozYou save$3.01Options from $16.99 – $203.88
Techron Concentrate Plus Complete Fuel System Cleaner 20oz bottle
4.6 out of 5 Stars. 176 reviews
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Only 1 left

Engine Treatment 2-Piece Bundle

Engine Treatment 2-Piece Bundle
$861
Engine Treatment 2-Piece Bundle
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Gumout Regane High Mileage Fuel System Cleaner Additive, 6OZ - 510023W

Gumout Regane High Mileage Fuel System Cleaner Additive, 6OZ - 510023W
Sponsored
$748$1.25/fl ozOptions from $7.48 – $179.52
Gumout Regane High Mileage Fuel System Cleaner Additive, 6OZ - 510023W
4.7 out of 5 Stars. 191 reviews
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Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles

Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles
Sponsored
$7990
Archoil AR6500 Diesel Treatment (40 oz) Two Pack - Treats 800 Gallons - Additive for All Diesel Vehicles
4.8 out of 5 Stars. 1019 reviews
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Rislone 4102 Engine Treatment Automotive Additive, 16.9 oz

Rislone 4102 Engine Treatment Automotive Additive, 16.9 oz
Available in additional 5 options
$68840.7 ¢/fl ozOptions from $6.88 – $152.64
Rislone 4102 Engine Treatment Automotive Additive, 16.9 oz
4.8 out of 5 Stars. 598 reviews
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STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz

STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz
Available in additional 6 options
$69846.5 ¢/fl ozOptions from $6.98 – $167.52
STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz
4.6 out of 5 Stars. 512 reviews
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Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce

Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce
$1799
Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce
4.5 out of 5 Stars. 164 reviews
Free shipping, arrives in 3+ days

Super Tech Fuel Injector Cleaner Automotive Additive, 6 fl oz

Super Tech Fuel Injector Cleaner Automotive Additive, 6 fl oz
Available in additional 5 options
Now$218$2.6736.3 ¢/fl ozYou save$0.49Options from $2.18 – $52.32
Super Tech Fuel Injector Cleaner Automotive Additive, 6 fl oz
4.6 out of 5 Stars. 339 reviews
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Chevron Techron High Mileage Fuel System Cleaner, 12 oz

Chevron Techron High Mileage Fuel System Cleaner, 12 oz
Available in additional 6 options
$103886.5 ¢/fl ozOptions from $10.38 – $249.12
Chevron Techron High Mileage Fuel System Cleaner, 12 oz
4.7 out of 5 Stars. 446 reviews
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Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz

Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz
Available in additional 6 options
$63657.8 ¢/fl ozOptions from $6.36 – $152.64
Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz
4.4 out of 5 Stars. 683 reviews
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100+ bought since yesterday Super Tech Engine Starting Fluid - 11 fl oz (1 Count)

100+ bought since yesterday
Super Tech Engine Starting Fluid - 11 fl oz (1 Count)
Available in additional 5 options
$39736.1 ¢/ozOptions from $3.97 – $95.28
Super Tech Engine Starting Fluid - 11 fl oz (1 Count)
4.7 out of 5 Stars. 799 reviews
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Gumout Regane High Mileage Fuel System Cleaner Additive, 6OZ - 510023W

Gumout Regane High Mileage Fuel System Cleaner Additive, 6OZ - 510023W
Available in additional 5 options
$748$1.25/fl ozOptions from $7.48 – $179.52
Gumout Regane High Mileage Fuel System Cleaner Additive, 6OZ - 510023W
4.7 out of 5 Stars. 191 reviews
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Super Tech Super Concentrated Fuel Injector and Carburetor Cleaner, 6 fl Oz, 1 Count

Super Tech Super Concentrated Fuel Injector and Carburetor Cleaner, 6 fl Oz, 1 Count
Available in additional 5 options
$19833.0 ¢/fl ozOptions from $1.98 – $47.52
Super Tech Super Concentrated Fuel Injector and Carburetor Cleaner, 6 fl Oz, 1 Count
4.6 out of 5 Stars. 327 reviews
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Lucas Oil 10512 Deep Clean Fuel System Cleaner Performance Additive 16 Ounce

Lucas Oil 10512 Deep Clean Fuel System Cleaner Performance Additive 16 Ounce
Available in additional 6 options
$104965.6 ¢/fl ozOptions from $10.49 – $215.76
Lucas Oil 10512 Deep Clean Fuel System Cleaner Performance Additive 16 Ounce
4.7 out of 5 Stars. 316 reviews
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Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz

Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
Available in additional 5 options
$1954$1.22/fl ozOptions from $19.54 – $468.96
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
4.2 out of 5 Stars. 817 reviews
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Techron Concentrate Plus 12oz

Techron Concentrate Plus 12oz
$2253
Techron Concentrate Plus 12oz
4.5 out of 5 Stars. 63 reviews
Free shipping, arrives in 3+ days

Super Tech Universal Motor Treatment for Gas, Diesel, and Oil, Truck and Car 16 fl oz

Super Tech Universal Motor Treatment for Gas, Diesel, and Oil, Truck and Car 16 fl oz
Available in additional 5 options
$46429.0 ¢/fl ozOptions from $4.64 – $111.36
Super Tech Universal Motor Treatment for Gas, Diesel, and Oil, Truck and Car 16 fl oz
4.6 out of 5 Stars. 339 reviews
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STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz

STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
Available in additional 4 options
$89259.5 ¢/fl ozOptions from $8.92 – $107.04
STP Synthetic Oil Treatment Engine Oil Additive, 15 fl oz
4.8 out of 5 Stars. 165 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

Marvel Mystery Oil - Automotive Additive Oil Enhancer and Fuel Treatment , 64 oz, Works with Vehicles with Gasoline and Diesel Engines
Available in additional 4 options
$129720.3 ¢/fl ozOptions from $12.97 – $155.64
Marvel Mystery Oil - Automotive Additive Oil Enhancer and Fuel Treatment , 64 oz, Works with Vehicles with Gasoline and Diesel Engines
4.7 out of 5 Stars. 148 reviews
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Niteo Products Motor Medic Engine Flush Additive, 32 fl oz – Cleans Cars, Trucks, SUVs

Niteo Products Motor Medic Engine Flush Additive, 32 fl oz – Cleans Cars, Trucks, SUVs
Available in additional 4 options
$67821.2 ¢/fl ozOptions from $6.78 – $81.36
Niteo Products Motor Medic Engine Flush Additive, 32 fl oz – Cleans Cars, Trucks, SUVs
4.7 out of 5 Stars. 232 reviews
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Sea Foam Fuel Injector Cleaner

Sea Foam Fuel Injector Cleaner
Available in additional 5 options
Now$524$6.7999.8 ¢/fl ozYou save$1.55Options from $5.24 – $125.76
Sea Foam Fuel Injector Cleaner
4.8 out of 5 Stars. 620 reviews
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Valvoline Restore & Protect Fuel System Cleaner - 12 Fl oz, 25204

Valvoline Restore & Protect Fuel System Cleaner - 12 Fl oz, 25204
$119799.8 ¢/oz
Valvoline Restore & Protect Fuel System Cleaner - 12 Fl oz, 25204
5 out of 5 Stars. 4 reviews
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About Additives in Oils and Fluids - Walmart.com

Automotive additives help you match the right formula to your vehicle’s fuel, oil, transmission, or coolant system. You can compare additive type, engine compatibility, mileage fit, and treatment purpose before you choose.

How to choose automotive additives by additive type

You should start with the system you want to support, because each formula fits a different part of your vehicle. You’ll usually compare fuel additives, oil additives, transmission additives, and coolant additives in this category.

Fuel additives and fuel system cleaner options fit your gasoline or diesel tank during routine fill-ups. You can choose oil additives for your crankcase and select transmission additives based on your transmission fluid type.

Coolant additives fit your cooling system and help you maintain temperature stability, corrosion control, and system cleanliness. You’ll want to match the formula to the fluid reservoir listed on your bottle label.

  • You can narrow choices by fuel, oil, transmission, or coolant use.
  • You can compare formulas for high mileage or standard vehicles.
  • You can select treatments aimed at cleanliness, friction reduction, or leak stopping.
  • You can check whether the formula fits gasoline, diesel, or hybrid applications.

Choosing engine additives and compatibility details

You should check your engine type before you choose engine additives, because gas and diesel formulas aren’t always interchangeable. You’ll also want to confirm whether your vehicle uses a turbocharged setup or hybrid system.

Gasoline formulas often feature labels for spark-ignition engines, while diesel formulas target compression-ignition needs. You can look for wording that clearly matches your fuel type and application method.

Hybrid vehicles may still use gasoline engines, but you should verify the product label before adding any treatment. You can also check whether the formula mentions start-stop driving or mixed driving patterns.

You may also compare packaging for API-related language or manufacturer approval references when warranty compliance matters to you. You should always confirm your owner’s manual requirements before using any additive in a covered vehicle.

What to look for in oil and fuel additives

You can compare oil and fuel additives by the issue you want to address in everyday driving. You may be looking for engine cleanliness, friction reduction, fuel economy support, or leak stopping.

If your vehicle feels rough at idle or less responsive, you may prefer a fuel system cleaner or injector-focused formula. If your older engine uses oil between changes, you may look for high mileage oil treatments.

For transmission additives, you’ll want to check fluid compatibility and the intended use on the label. Some formulas target smoother shifting, while others focus on seal conditioning or fluid performance support.

You should also compare treatment ratio and application frequency before you buy. You may see directions listed by ounces per gallon, ounces per quart, or one bottle per service interval.

Higher treatment ratios can matter when you maintain trucks, multiple vehicles, or larger fluid capacities. You’ll want directions that match your maintenance routine, because some formulas are one-time treatments and others are repeat-use options.

Matching automotive additives to mileage and driving needs

You can use vehicle mileage as a practical filter when you compare automotive additives. High mileage formulas are usually labeled for older engines, while standard formulas fit regular maintenance plans.

If your vehicle has many road miles, you may focus on formulas aimed at seal conditioning, deposit control, or friction reduction. You can pair that search with oil additives or transmission additives, depending on the system involved.

For daily commuting, you may prefer fuel additives that fit consistent fill-up habits and straightforward dosing. If you tow, drive long highway distances, or run a diesel truck, you may compare larger bottles and diesel-specific treatments.

You can also measure convenience by bottle size, pour spout design, and whether the formula is a single application. Those details help you handle routine maintenance with less guesswork at the garage or driveway.

How to compare application details before you choose

You should read the label for fluid capacity guidance, because treatment amounts can vary widely across formulas. You’ll often find directions tied to gallons of fuel, quarts of oil, or full transmission service intervals.

You can use some engine additives for preventive maintenance, or choose others for specific performance concerns. You can compare whether you need a seasonal treatment, an every-fill option, or a product for scheduled service.

You may also look for clear instructions about when to add the formula during your maintenance routine. That makes it easier for you to match the product to an oil change, fuel fill-up, or fluid replacement.

When you compare additive type, compatibility, mileage fit, and treatment directions, you can choose with more confidence. You’ll end up with automotive additives that align with your vehicle, your maintenance schedule, and your driving habits.