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10 bestDiesel Engine Fuel Additivesof July 2025

112M consumers helped this year.

1

Hot Shot's Secret - P040464Z Diesel Extreme Clean and Boost - 64 fl. oz.
Hot Shot's Secret - P040464Z Diesel Extreme Clean and Boost - 64 fl. oz.

Hot Shot's Secret

9.9

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2

Lucas 10013 Fuel Treatment - 1 Gallon
Lucas 10013 Fuel Treatment - 1 Gallon

Lucas Oil

9.8

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3

Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS)
Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS)

Hot Shot's Secret

9.8

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10% off

4

Opti-Lube XPD Diesel Fuel Improver: 1 Gallon Without Accessories Treats up to 512 Gallons
Opti-Lube XPD Diesel Fuel Improver: 1 Gallon Without Accessories Treats up to 512 Gallons

Opti-Lube

9.5

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10% off

5

STANADYNE DIESEL PERFORMANCE FORMULA - 64 OZ.
STANADYNE DIESEL PERFORMANCE FORMULA - 64 OZ.

Stanadyne

9.3

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Hot Shot's Secret SSFP Signature Series Fuel Pack 32 Ounce 2 Pack, Amber

Hot Shot's Secret SSFP Signature Series Fuel Pack 32 Ounce 2 Pack, Amber

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Lucas Oil 10080 Upper Cylinder Lube/Fuel Treatment - 5 Gallon Pail

Lucas Oil 10080 Upper Cylinder Lube/Fuel Treatment - 5 Gallon Pail

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Liqui Moly 2002 Super Diesel Additive - 300 ml

Liqui Moly 2002 Super Diesel Additive - 300 ml

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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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11% off

6

Fuel Treatment/1x1/Quart
Fuel Treatment/1x1/Quart

Lucas Oil

9.0

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11% off

7

STANADYNE Diesel Lubricity Formula - 64 OZ.
STANADYNE Diesel Lubricity Formula - 64 OZ.

Stanadyne

8.7

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8

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

Liqui Moly

8.5

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9

Liqui Moly 2005 Diesel Purge - 500 ml
Liqui Moly 2005 Diesel Purge - 500 ml

Liqui Moly

8.2

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10

Lucas 10020 Fuel Treatment - 5.25 oz
Lucas 10020 Fuel Treatment - 5.25 oz

Lucas Oil

7.9

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