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Fuel Additives
Great for helping get more mileage out of a tank of gas, fuel additives also accelerate combustion, giving your vehicle a more powerful and overall smoother performance.
(109 items in Fuel Additives) 
Fastenal Part No. (SKU) 5127807
12oz Bottle Zecol™ Carburetor & Fuel Injector Cleaner
Zecol™
UOM case of 12 Price
Online Price:
$40.56 / case of 12
Unit Price:
$3.38 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0617836
8oz Bottle Gas RX™ Gasoline Treatment
RX™
UOM case of 24 Price
Online Price:
$183.12 / case of 24
Unit Price:
$7.63 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 5127809
12oz Bottle Zecol™ Gasoline Treatment
Zecol™
UOM case of 12 Price
Online Price:
$41.64 / case of 12
Unit Price:
$3.47 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0617807
1gal Bottle EnerFuel™ Diesel Fuel Treatment
EnerFuel™
UOM case of 4 Price
Online Price:
$291.96 / case of 4
Unit Price:
$72.99 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0617834
5gal Bottle Complete Fuel Treatment™
Fuel Treatment™
UOM each Price
Online Price:
$352.04 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 5127803
12oz Bottle Zecol™ Total System Engine Tune-Up
Zecol™
UOM case of 12 Price
Online Price:
$60.72 / case of 12
Unit Price:
$5.06 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0607106
12 oz Bottle GUARANTEED TO PASS Emissions Test Formula
CRC INDUSTRIES, INC.
UOM case of 12 Price
Online Price:
$261.72 / case of 12
Unit Price:
$21.81 / each
Availability Ships from Manuf. Qty
Fastenal Part No. (SKU) 0617822
5gal Bottle Inject-R-Clean™ Fuel Injector Cleaner
Inject-R-Clean™
UOM each Price
Online Price:
$224.10 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0617846
5gal Bottle Octa Plus™ Gasoline Treatment
Octa Plus™
UOM each Price
Online Price:
$501.41 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 5100699
12 oz 6XT Diesel Fuel Treatment
NITEO PRODUCTS LLC
UOM case of 12 Price
Online Price:
$107.64 / case of 12
Unit Price:
$8.97 / each
Availability Ships from Manuf. Qty
Fastenal Part No. (SKU) 0617806
32oz Bottle EnerFuel™ Diesel Fuel Treatment
EnerFuel™
UOM case of 12 Price
Online Price:
$225.60 / case of 12
Unit Price:
$18.80 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 5111902
32 oz Bottle CleanBoost® Maxx™ Super Concentrate Fuel Supplement
CleanBoost®
UOM each Price
Online Price:
$43.77 / each
Availability Contact Branch Qty