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About Additives

Fuelogic are a reseller of Exocet fuel additives, exocet® is the brand name for Fuel Additives Science Technologies (FAST).


We are fuel technology specialists who formulate, blend and market fuel additives as well as providing advice on fuel quality.


What are fuel additives? 

Fuel additives are concentrated, technically-driven products formulated to provide best in class performance for any application. We can deliver our fuel additives in various container sizes ranging from 50ml bottles to 1,000 litre IBCs and even in bulk if required.

Our commercial customers have found that using fuel additives to upgrade fuel quality and/or by enhancing equipment performance has resolved many actual and potential problems and as a result has substantially enhanced their business in all respects.

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Eliminates plugging of filters and gauges

Protects against tank and pipe corrosion

Better Fuel Efficiency

Cleans Your Engine




Exocet demulsifier is used either to prevent fuel-water emissions form forming or as a fuel dehazer - to eliminate water haze already dispersed within the fuel. 

Exocet demulsifier is added directly into bulk fuel storage and should be agitated as much as possible to maximise contact between the fuel and the additive. 

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Inhibits water carry-over with the fuel

Can help to render fuel 'clear and bright'

Separates water from fuel 

Helps to create a defined fuel-water interface


Diesel Defender

Exocet® Diesel Defender contains Dyeguard® 673KNF technology which has been notified to HMRC with a technical report of compliance to satisfy Regulation 14(3) of the Hydrocarbon Oil (marking) Regulations 2002.

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Causes no issues with identification, quantification, and classification of marked rebated fuels within mainland UK

Is notified with HMRC

Does not cause interference with statutory markers 


Diesel Defender

Billions of litres of fuel are stored all over the UK at numerous commercial sites.

This fuel has a value of millions of pounds and is extremely vulnerable to theft.


Exocet Diesel Defender is a liquid blue dye that will colour white diesel to produce a green fuel and act as a deterrent to thieves.

Tank stickers can be supplied on request to advertise that the fuel has been dyed to prevent theft


200ml treats
2,000 litres of fuel

For more information on our full range of
additives contact our helpful advisors today

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Anti Bug kill

The first sign of microbiological contamination (the 'diesel bug') is open continuous blocking of filters with a slimy substance which can range in colour from black to light brown. Anti bug kill and Exocet anti bug protect can be dosed into fuel via either batch treatment or as part of a continuous additive injection regime. 

Exocet anti bug kill is used to tackle current and immediate microbiological infestation. Exocet anti bug protect is used to inhibit microbiological activity in clean tanks. Both additives can be used in bulk fuel storage or added directly into a vehicle or machine fuel tank. 

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Broad spectrum additives covering a variety of bacteria, viruses, fungi and yeasts

Has an immediate effect and does not add to sludge or slime build-up

Clean-up rates are 24-36 hours

Has no adverse affect on waste water systems or municipal sewage treatment

Diesel Supreme

Exocet diesel supreme fulfils two functions: 

1. To act as an additive package for unadditised, termonial sourced DERV (basic EN590 diesel)

2. To upgrade retail diesel to premium grade fuel 

Exocet diesel supreme can be added either to bulk storage or directly into the vehicle tank. It should be used where consistent and optimal power delivery is required;

fuel economy needs to be optimised; diesel knock and engine noise minimised; and emissions reduction is sought. 

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Maintains injector & duel system cleanliness

Smoother power delivery & acceleration boost

Reduces emissions by improving combustion efficiency 

Enhanced engine life-expectancy & corrosion protection

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