These products are appropriate for your industry

FQS 1.5 Microbicide®

FQS 1.5 Microbicide® is an EPA approved antimicrobial agent used in the control of bacteria and fungi in fuel systems that store liquid hydrocarbon fuels and oils such as: crude oils, petrochemical feed stocks, liquefied petroleum gasses, gasoline, diesel fuel oils, aviation fuels, kerosene, coal slurries, renewable fuel blend stock and renewable fuel blends.


FQS 1.5 Microbicide® has the same active ingredients as *Kathon FP 1.5 Microbicide.  It also has the same speed of kill, proven treat rate of 1:10,000, persistence and pricing.


FAST ACTING – FQS 1.5 Microbicide® has shown to decrease microbial activity in as quickly as 5 hours after initial treatment.


TREAT RATE: Typical effective treat rate is 100 ppm or 1 gallon FQS 1.5 Microbicide® to 10,000 gallons fuel product.  Fuel systems with severe microbial contamination can undergo treatments of up to 400 ppm.



EPA Registration No. 65597-1

On QPL for MIL-S-53021
FQS 1.5 Microbicide® is currently pending aviation approvals


Product Order Number:

FQS-7010-14TP Quart Container

FQS-7010-01TP 1-Gallon Container

FQS-7010-05 5-Gallon Pail

FQS-7010-30 30-Gallon Drum (30 gals)

FQS-7010-55 55-Gallon Drum (55 gals)


Military Customers: Purchase on GSA Contract: GSA-07F-5938R

GSA 7000-14TP Quart Container NSN: 6840-00-300-6373

GSA 7000-01TP 1-Gallon Container NSN: 6840-01-358-7218

GSA 7000-05 5-Gallon Pail NSN: 6840-01-173-6940

GSA 7000-30 30-Gallon Drum (30 gals) NSN: n/a/ GSA 7000-55

55-Gallon Drum (55 gals) NSN: 6840-01-041-0098



LTSA-35A Fuel Stabilizer—MILSPEC

LTSA-35A is a multifunctional stabilizer additive package that contains an antioxidant, corrosion inhibitor, dispersant, and metal deactivator for intermediate and long-term storage of diesel fuel and biodiesel blends up to B5. The corrosion inhibitor is also effective in both oil and water wetted phases. LTSA-35A is the only chemistry type approved under QPL-53021. When used as directed the sulfur content is well below the US EPA ULSD Sulfur requirements. Product Number: FQS-401


LTSA-35A is a multifunctional stabilizer additive that provides functional and performance protection to burner and diesel fuels including biodiesel blends up to B5 through the use of antioxidants to inhibit fuel oxidation processes which can lead to darkening of the fuel and sediment formation; metal deactivators that can lead to metal catalyzed oxidation degradation of the fuel; dispersants that retards the agglomeration of fuel degradation products such as gums and particulates that are responsible for filter plugging, and a corrosion inhibitor that is effective in both oil and water wetted phases. LTSA-35A contains the chemistry type approved for use by all departments and agencies under the Department of Defense that require intermediate (6-24 months) and long term (24-60 months) stabilization of middle distillates and is approved on the QPL (qualified products list) for MIL-S-53021. LTSA-35A has also found wide spread application in a number of non-military and commercial applications that store fuel such as utilities, standby diesel generators, and home heating oil that also use burner and diesel fuels including biodiesel blends up to B5. When used as directed, LTSA-35A does not endanger the sulfur limits of ULSD fuels.


LTSA-35A is a multifunctional diesel fuel stabilizer additive package On QPL for MIL-S-53021A Treats at 1 gallon LTSA-35A to 5,000 gallons of fuel.


Product Order Number:

FQS-401-35A 1-Gallon Container

FQS-405-35A 5-Gallon Pail FQS-455-35A 55-Gallon Drum


Military Customers:

Purchase on GSA Contract: GS-07F-5938R

GSA-401-35A 1-Gallon Container NSN: n/a

GSA-405-35A 5-gallon Pail NSN: 6850-01-167-4789

GSA-455-35A 55-Gallon Drum NSN: 6850-01-167-4788


Bug Alert® Test Kit

Effective control of microbial contamination through biocide use is only possible when routine monitoring of fungi and bacteria levels are performed. The Bug Alert® test kit make routine determinations of fungal and bacteria populations quick and easy. The Bug Alert® test kit contains flexible plastic strips to which nutrient-containing filter paper is attached. The kit is complete and ready to use. No special equipment or training is necessary. Test results can be read Aerobic Bacteria (AB) 24-36 hrs and Yeast & Mold (YM) 72 hrs.


The YM stands for Yeast and Molds (fungi), these are closely related organisms and generally require the same conditions for growth. Results may be read as early as 72 hours and may take an additional 3 days. The AB stands for Aerobic Bacteria, those organisms which require oxygen. Most bacteria that contaminates the industrial environment are in this category and will grow on the AB test strip. The kit contains dehydrated pads and requires no refrigeration.


If the test strips are positive for bugs, call FQS to consult possible treatment options. If the test strips are negative, the next step would be to check for SRB (Sulfate Reducing Bacteria) anaerobic bacteria to determine if this might be the problem. A bottom fuel sample is required for microbiological testing.


Kits are complete and ready to use.


No special training needed.


Test results can be read as early as 72 hours.


The Bug Alert® Test Kit is a good “go” - “no go” microbial fuel test .


Product Number: FQS-005

The HY-LiTE® Rapid Microbial Test for Fuel Systems can be used for testing of: Jet A, Jet A1, Jet B, JP8, JP8+100, F34/F35, gasoline, diesel, biodiesel B100 and biodiesel blends, marine diesel and ethanol blends.


  • Complies with ASTM D7463 ATP Test Method.

  • Simple to perform with results in 10 minutes or less.

  • The test will detect the presence of metabolically active microorganisms.

  • The test results are not affected by the presence of di-EGME (FSII) or approved levels of biocides (100 ppm FQS 1.5 Microbicide or 270 ppm Biobor JF).


Merck KGaA Warranty Statement: May 19, 2010

“HY-LiTE® 2 / BioScan® is only validated for use with the Merck range of pens and consumables. This includes the FQS Fuel Test Pen.”

Product Order Number: FQS-046 HY-LiTE® Instrument FQS-047 HY-LiTE® Microbial Fuel Test Kit FQS-053 ATP Free Swabs FQS-045 Paper Refills for Printer FQS-044 E10 - Test Kit





MicrobMonitor2® TEST KIT

MicrobMonitor2® Test Kit is IATA approved and recognized by major airframe manufacturers for aviation fuel and is easy to use. You can test the water or fuel phase of aviation fuel. The kit consists of a test bottle containing a nutrient gel that promotes the growth of bacteria and yeast/molds. Once a sample has been added to the bottle, the container is incubated as instructed, dark place for 1 to 4 days for bacteria and 3 additional days for yeast & mold. The microbes actually grow in and on the gel. They will show up as red or purplish red dots in the sample bottle indicating a positive result. If you require a quantitative number there is a color chart to compare the results against.


Generally any positive growth requires action. Call FQS to consult on possible treatment options.


The MicrobMonitor2® can be used to test both the fuel/oil phase and the water phase.


IATA approved for aviation fuels


Product Number: FQS-035

Fuel Sampling Kit

Different tests and/or analysis require samples taken from specific points and levels in a tank or fuel storage system (i.e. dead bottom, middle). To aid in this task, FQS offers a Fuel Sampling Kit equipped with all the necessary supplies needed to properly collect a fuel sample for testing. We can customize the kit to meet your specific sampling needs. Fuel Samplers (formerly known as Bacon Bombs) range from 4 ounces up to 32 ounces. Ensure that you collect the proper amount of fuel and that the sample is drawn from the proper location of the fuel system. Insufficient fuel sample or sample taken from the wrong location may affect the analysis results.


This kit, in combination with our field test kits gives you everything you need to pull a tank sample and test for microbial growth at your location. If test results are positive for bugs, Contact FQS to consult on possible treatment options.


Kit contains necessary supplies to properly collect a fuel sample for testing.


Kit can be customized to meet your sampling needs.


Fuel samplers can be purchased individually and range from 4 ounces to 32 ounces.

Product Number: FQS-007


FQS-3000 improves cold weather performance and fuel economy while reducing maintenance and increasing equipment life.At a treat ratio of one-gallon to 1,000 gallons of diesel fuel, FQS-3000 will exceed Cummins L-10 Superior Performance.


Performance features include:


  • Exceeds Cummins L-10 Superior Performance

  • Exceeds Cummins N-14

  • Keeps injectors clean

  • Improves fuel economy

  • Improves fuel lubricity

  • Improves fuel stability

  • Corrosion protection

  • Reduces cold filter plug point

  • Reduces fuel pour point


Product Number: FQS-3000



FQS 3500 - Premium Diesel Performance Additive

FQS 3500 Premium Diesel Performance Additive is specially formulated to improve the quality and performance of ULSD diesel fuel in modern High Pressure Common Rail (HPCR) engines. It is also effective in higher sulfur diesel fuels and older style diesel engines. A treat ratio of one gallon for every 2,000 gallons of diesel fuel will keep fuel injectors clean, provide fuel economy, and improve overall performance. A treat ratio of one gallon for every 1,000 gallons of diesel fuel will rapidly clean up fuel injectors, provide superior overall performance, and improve fuel economy up to 7%.


Performance Features:

  • Keeps injectors clean at low treat rate of 1:2,000

  • Rapidly cleans-up dirty injectors including internal deposits at treat rate of 1:1,000

  • Improves fuel economy up to 7%

  • Restores lost power due to dirty injectors Improves fuel lubricity Improves fuel stability

  • Reduces filter plugging by asphaltenes, degradation products and fuel contaminants

  • Provides improved corrosion protection to fuel Will not adversely effect water separation of fuel



One gallon to 2,000 gallons of diesel fuel for improved performance.

One gallon to 1,000 gallons of diesel fuel for superior performance.



Container Size: 1-quart, 1-Gallon, 2-Gallon Pail

US Gals. Per Unit 0.25 gal, 1 gal, 5 gals


Product Number: FQS 3500