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10 bestDef Diesel Fuel Additiveof December 2025

112M consumers helped this year.

1

Archoil Ultimate Diesel Kit - AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40.6oz) + AR6400-D Diesel Fuel System Cleaner (12oz)
Archoil Ultimate Diesel Kit - AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40.6oz) + AR6400-D Diesel Fuel System Cleaner (12oz)

Archoil

9.8

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2

Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6oz) + AR6400-D Diesel Fuel System Cleaner…
Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40.6oz) + AR6400-D Diesel Fuel System Cleaner…

Archoil

9.6

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3

Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems…
Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems…

Archoil

9.3

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13% off

4

Archoil AR6500 Diesel Treatment (Two Pack) - Treats 800 Gallons - Additive for All Diesel Vehicles
Archoil AR6500 Diesel Treatment (Two Pack) - Treats 800 Gallons - Additive for All Diesel Vehicles

Archoil

9.1

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5

Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles
Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles

Archoil

8.8

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BlueDEF DEF002 Diesel Exhaust Fluid - 2.5 Gallon Jug

BlueDEF DEF002 Diesel Exhaust Fluid - 2.5 Gallon Jug

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Liqui Moly Pro-Line Diesel Cleaner, blue, red, 500ml (2032)

Liqui Moly Pro-Line Diesel Cleaner, blue, red, 500ml (2032)

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Star brite 093116C Star Tron Enzyme Fuel Treatment-Super Concentrated Diesel Formula-473ml

Star brite 093116C Star Tron Enzyme Fuel Treatment-Super Concentrated Diesel Formula-473ml

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Stanadyne Performance Formula Diesel Fuel Additive case of 24 x 8 oz.

Stanadyne Performance Formula Diesel Fuel Additive case of 24 x 8 oz.

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6

Archoil AR6400-D Diesel Fuel System Cleaner - Cleans Injectors, Turbo, DPF & EGR…
Archoil AR6400-D Diesel Fuel System Cleaner - Cleans Injectors, Turbo, DPF & EGR…

Archoil

8.5

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7

OTC 5025 Diesel Exhaust Fluid (DEF) Refractometer
OTC 5025 Diesel Exhaust Fluid (DEF) Refractometer

OTC

8.2

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8

B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100)
B3C Fuel Solutions DEF 7-040-9 Diesel-Exhaust-Fluid Contamination Test Strips (Pack of 100)

B3C Fuel Solutions

7.9

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9

Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566
Stanadyne Performance Formula Diesel Fuel Additive 2 Pack of 1/2 Gallon Jugs - Part # 38566

Stanadyne

7.6

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10

Blue Def DEF002-4PK Diesel Exhaust Fluid, 2.5 Gallon, 4 Pack
Blue Def DEF002-4PK Diesel Exhaust Fluid, 2.5 Gallon, 4 Pack

Blue Def

7.3

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