10 bestDiesel Engine Fuel Additivesof May 2026
112M consumers helped this year.
1
Hot Shot's Secret - P040464Z Diesel Extreme Clean and Boost - 64 fl. oz.
Hot Shot's Secret
10.0
2
Lucas 10013 Fuel Treatment - 1 Gallon
Lucas Oil
10.0
3
Lucas Oil 10080 Upper Cylinder Lube/Fuel Treatment - 5 Gallon Pail
Lucas Oil
9.9
14% off
4
Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS)
Hot Shot's Secret
9.9
5
Opti-Lube XPD Diesel Fuel Improver: 1 Gallon Without Accessories Treats up to 512 Gallons
Opti-Lube
9.7
OtherUp to 46% off
Lucas 10020 Fuel Treatment - 5.25 oz
4 Bottles of Stanadyne 38564 Performance Formula 8 oz Diesel Fuel Additive by Stanadyne
Hot Shot's Secret SSFP Signature Series Fuel Pack 32 Ounce 2 Pack, Amber
Opti-Lube Summer+ Formula Diesel Fuel Additive: 1 Gallon with Accessories (1 Hand Pump & 2- Empty 4oz Bottles) Treats up to 2,560 Gallons
6
STANADYNE DIESEL PERFORMANCE FORMULA - 64 OZ.
Stanadyne
9.5
7
Stanadyne Performance Formula Diesel Fuel Additive case of 24 x 8 oz.
9.3
5% off
8
Fuel Treatment/1x1/Quart
Lucas Oil
9.0
9
STANADYNE Diesel Lubricity Formula - 64 OZ.
Stanadyne
8.7
10
Liqui Moly (2032) Pro-Line Diesel Cleaner, blue, red, 500ml
Liqui Moly
8.4
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