Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
10 Best fuel system additives of 2026
Save up to 20% off
Best Choice1
Archoil9.6Exceptional
Archoil Diesel Fuel System Kit - AR6400-D (12 oz) + AR6500 (40 oz) - Complete Restoration For All Diesel Engines, Injector Cleaner, Lubricity Improver, DPF & Turbo Deposit Control, Cetane Booster
-
manufacturer part number: AR-FSK
-
item weight: 3.65 pounds
-
customer reviews:4.6 4.6 out of 5 stars 648 ratings 4.6 out of 5 stars
-
package dimensions: 14.92 x 7.68 x 4.61 inches
-
asin:B087JSLFNC
-
-
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
Careful review Our team ensures quality, value, and fit based on real user feedback
Trusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impact
Thousands of users trust our site daily- Based on millions of stores and reviews
- Shoppers influence our rankings
Value for Money2
Archoil9.5Excellent
Archoil AR6500 Diesel Treatment (40 oz) Treats 400 Gallons, Diesel Fuel Additive - Lubricity Improver, Injector Cleaner, DPF & Turbo Deposit Control, Cetane Booster
-
manufacturer part number:AR6500-40
-
item weight:2.9 pounds
-
customer reviews:4.7 4.7 out of 5 stars 2,697 ratings 4.7 out of 5 stars
-
package dimensions:11.97 x 7.64 x 3.7 inches
-
asin:B09KS9JMDP
-
3
Gumout9.4Excellent
Gumout 510014 Regane Complete Fuel System Cleaner, 6 oz. (Pack of 6) (510014W-6PK)
-
product dimensions: 5.56 x 3.69 x 9 inches
-
manufacturer part number: 510014W-6PK
-
country of origin: USA
-
item weight: 2.7 pounds
-
customer reviews:4.6 4.6 out of 5 stars 839 ratings 4.6 out of 5 stars
-
4
Hot Shot's Secret9.1Excellent
Hot Shot’s Secret Everyday Diesel Treatment EDT 16 oz Squeeze – Treats 400 Gallons – 6-in-1 Diesel Fuel Additive, Injector and Fuel System Cleaner, Boosts Cetane
-
manufacturer part number: HSSEDT16ZS
-
item weight: 1 pounds
-
customer reviews:4.8 4.8 out of 5 stars 7,037 ratings 4.8 out of 5 stars
-
package dimensions:N/A
-
asin:B00E64I7SI
-
5
Red Line8.8Very Good
Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (2 Pack)
-
product dimensions:N/A
-
manufacturer part number:60103
-
country of origin:N/A
-
item weight:1.96 pounds
-
customer reviews:4.7 4.7 out of 5 stars 7,854 ratings 4.7 out of 5 stars
-
-
See Today’s Deals & Prices
6
Lucas Oil8.6Very Good
Lucas Oil 10013 Fuel Treatment - 1 Gallon
-
Function:Cleans and lubricates fuel system
-
Compatibility:Gasoline and diesel engines
-
Compliance:Complies with federal low sulfur content requirements
-
Application:Fuel Treatment
-
Volume:1 Gallon
-
7
Liqui Moly8.5Good
LIQUI MOLY - DIJectron Additive - Gasoline Direct Injection (GDI) Cleaner (22076)
-
8
Chevron8.3Good
Chevron 67740-CASE Techron Concentrate Plus Fuel System Cleaner - 12 oz. (Pack of 6)
20% Off
-
9
Royal Purple8.2Good
Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce
-
product dimensions: 2.63 x 2.63 x 9.73 inches
-
manufacturer part number: 11722
-
country of origin: USA
-
item weight: 1.2 pounds
-
customer reviews:4.6 4.6 out of 5 stars 2,331 ratings 4.6 out of 5 stars
-
10
STAR BRITE7.9Good
STAR BRITE Star Tron Enzyme Fuel Treatment - Concentrated Formula 32 Fl. Oz. – Treats up to 512 Gallons - Fuel Stabilizer & Treatment, Gasoline Stabilizer, Star Tron Marine Enzyme Fuel Treatment
-
