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Products to suit ALL Diesel Engines

Is your engine smoking, spluttering, having trouble starting or just down on power? Do you have sludge or other contaminants building up in your fuel tank?

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Reliability and performance for cars, trucks, marine, plant, farming & all other diesel engine applications

Do Diesel Fuel Additives Work?

Yes! OneShot Diesel Additives do work for ANY diesel engine. But why?


OneShot diesel fuel additives are the best in their class and have been developed to address many known issues resulting from EU driven changes to diesel (white, red / marine and gas oil) composition.

Reduced sulphur and higher biodiesel levels have lead to reduced lubrication of important engine components, and increased water condensation and pick up.


This has a potential four fold effect:

  1. Power loss and increased particulates/ smoke from incomplete combustion.
  2. Increased probability of contamination by “Diesel Bug” leading to:
    Diesel and Diesel Bug sludge in bottlea) Clogged Filters
    b) Engine / injector damage
    c) Fuel degradation requiring full replacement / cleaning and / or polishing
  3. Increased sludge and tank varnish formation and deposits.
  4. Increased propensity for diesel wax formation in winter.

Using OneShot diesel products will address all of the issues above and improve performance whilst offering the best protection for ANY engine!  

Diesel Additives ... Protection and Performance For Every Season


Save £££’s with OneShot Seasonal Maintenance Programs.  For advice, or for more information about your diesel fuel, engine or storage tank, please Contact Us.



On Road Diesel Pro:
  "Having suffered engine cut out problems for months, along with changing various parts, I decided to take a careful look at fuel filtering and quality.  I used OneShot Road Diesel Pro, but in a rather stronger mix than recommended, i.e 200ml in 200ltrs of fuel.  After a complete recovery from the problems, I decided to reduce the dosing levels to those recommended.
I can only feel that this was the result of OneShot reducing the particle size, preventing large particles creating an open pressure control valve and therefore it cutting out by the sensors and then computer.
I now intend to use OneShot Road Diesel Pro in every tank fill as it has worked out to be very cost effective and there has been no return of the cutting out problems associated with my common rail engine. Thanks for sorting this problem."
John Fellows

On OneShot ECO Plus & Storage Pro:
  "I have a Cruiser on the Norfolk Broads powered by a Perkins 4108 Diesel. With all the current concerns over Bio-Diesel and the effects it's having on older engines, plus the storage of fuel over winter months, I decided to use fuel additives for the first time to help prevent "Diesel Bug".  I added two OneShot treatments to my fuel, OneShot Diesel Storage Pro and OneShot Diesel ECO Plus.  I'm delighted with the results. The engine started second turn of the key after 4 months laying idle. Previously it would have taken 4 or 5 long attempts.  I shall continue to use these products and recommend them to other boat owners. The advice and service I received from Sirius Marine was first class - Thank you."

Ray Ward - Ellingham, UK.

Latest news from OneShot
Remember, we have a product for any diesel fuel and for use in any diesel engine whether it be cars, trucks, plant machinery, or  tractors. We are not just about boats, so give us a call to discuss your needs.


You can find out more by signing up to our newsletter, where you will get the latest developments on the OneShot product range.



For further information on the 2011 fuel changes, please click here


Buy the OneShot Solutions range here

Diesel Storage Pro Additive

For use with ANY Diesel 

Buy Now - Diesel Storage Pro Additive

Diesel Anti-Wax Additive

Suitable for ALL diesel engines and ALL grades of diesel
Buy Now - Diesel Anti-Wax Additive

Diesel Bug Biocide Additive

Suitable for ALL diesel engines and ALL grades of diesel
Buy Now - Diesel Bug Biocide Additive

Plant Diesel Pro Additive

For use in Red diesel 

Buy Now - Plant Diesel Pro Additive

Diesel Power Max Additive

Suitable for ALL diesel engines and ALL grades of diesel.
Buy Now - Diesel Power Max Additive

Diesel ECO Plus Additive

Suitable for all Marine applications using Red Diesel (A2 Gas Oil)

  • Not suitable for engines compliant to Euro IV, or later, emission controlled applications . One of our other additives can be used to protect those engines.
Buy Now - Diesel ECO Plus Additive

Road Diesel Pro Additive

Suitable for all diesel engines using White Diesel/Derv EN590
Buy Now - Road Diesel Pro Additive

Diesel First Start Additive

Suitable for ALL diesel engines and ALL grades of diesel.
Buy Now - Diesel First Start Additive

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OneShot Diesel Additives