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

9.9
2

Lucas 10013 Fuel Treatment - 1 Gallon
Lucas Oil

9.8
3

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

9.8
10% off
4

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

9.5
10% off
5

STANADYNE DIESEL PERFORMANCE FORMULA - 64 OZ.
Stanadyne

9.3
Other
11% off
6

Fuel Treatment/1x1/Quart
Lucas Oil

9.0
11% off
7

STANADYNE Diesel Lubricity Formula - 64 OZ.
Stanadyne

8.7
8

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

8.5
9

Liqui Moly 2005 Diesel Purge - 500 ml
Liqui Moly

8.2
10

Lucas 10020 Fuel Treatment - 5.25 oz
Lucas Oil

7.9

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