What is Gas Oil Extra?

What is Gas Oil Extra?

Gas Oil Extra is an inexpensive gas oil (BS2869:A2) upgrade product formulated to allow modern diesel engines calibrated on EN590 DERV to run on red diesel. It also compensates for some of the deleterious effects of a higher FAME (Fatty Acid Methyl Ester) content e.g. tendency for water pick-up. The product will also enhance the performance of older diesel vehicles. Red diesel Plant machinery

Gas Oil Extra Features

Increased cetane number (Ignition properties)

  • Easier starting
  • Increased pulling power
  • Smoother power delivery
  • Reduced visible emissions (smoke)
  • Improved combustion efficiency
  • Aligns with modern engine calibrations

Increased fuel lubricity

  • Compensates for sulphur reduction
  • Protects against premature wear in fuel pumps and fuel injectors
  • Reduces friction

Enhanced water resistance

  • Prevents emulsions forming and resultant filter blockages
  • Keeps water out of the fuel"


  • Gas Oil Extra is added to fuel at the rate of 1 litre of additive to 3,000 litres of fuel. The additive will counter any negative effects resulting from the introduction of the latest gas oil specifications, notably the reduction in sulphur content and the increase in the allowable FAME (biodiesel) content. Typical applications are agricultural and horticultural machinery, construction equipment, airport vehicles and fork lift trucks.
  • The product is formulated from recognised fuel additive components and should not void an engine manufacturer’s warranty. In fact, very many engine manufacturers now recommend the use of upgrade additives when red/green diesel is used.

 When to use

  • Vehicle lacks power, misfires or 'runs rough'
  • Engine manufacturer recommends the use of an additive
  • Excessive smoke is observed
  • The FAME content of the fuel is known to have increased
  • Fuel is being used in a tier III or later vehicle (typically post 2005)