Prins Autogas Dieselblend 2.0 system chosen for 38 John Lewis Partnership trucks to achieve carbon footprint reduction targets


  • Prins Dual Fuel Dieselblend 2.0 system chosen for JLP HGV distribution fleet for its strategy to reduce CO2e emissions with the potential to achieve a 36% reduction using bio-methane

  • Three month trial resulted in order for Prins Autogas Dual Fuel Dieselblend 2.0 CNG system for 38 DAF CF trucks on JLP distribution fleet

  • Prins Dieselblend 2.0 system converts diesel engines to dual fuel engines by replacing an optimum amount of diesel with CNG (LNG or LPG)

  • Prins Autogas UK achieved the JLP brief of less than 8% Eslip (Efficiency Slip) for diesel engines in its DAF CF fleet


Prins Autogas UK is helping the John Lewis Partnership (JLP) achieve a reduction in the carbon footprint of the distribution fleet for its John Lewis and Waitrose retail businesses by converting 38 of its DAF CF HGVs to dual fuel vehicles using the Prins Dieselblend 2.0 CNG system.

As a worldwide market leader in alternative fuel systems, Prins Autogassytemen B.V. Eindhoven was able to use its specialist knowledge to achieve JLP’s strict efficiency targets to reduce CO2e (Carbon Dioxide equivalent) emissions, and also that its Dieselblend 2.0 system had to have less than eight per cent Eslip (Efficiency Slip) when fitted to the diesel engines of its DAF CF distribution fleet.

The Prins Dieselblend 2.0 system is suitable for all diesel engines and works by using a fully computer controlled injection system to efficiently replace an optimum amount of diesel with gas (either CNG or LPG). It communicates directly with the vehicle’s ECU (via CAN-bus) and complies with strict regulations and all certifications required.

With the Prins Dieselblend 2.0 system fitted, the JLP DAF CF’s are each expected to have a range of between 600 to 700 miles using the gas tanks, and once this supply is used up, the engine automatically and smoothly switches to using 100 per cent diesel for around another 200 miles.

With an annual mileage in excess of 100,000 miles each, by using less diesel JLP will also be able to recover its investment in dual fuel technology as CNG is significantly cheaper than diesel.

Justin Laney from JLP said: “We have big ambitions to reduce the carbon footprint of our fleet, and the use of low carbon fuels, especially bio-methane, is fundamental to this. We see dual-fuel CNG as a good pathway to using greater quantities of biomethane in our heavy truck feet. The Prins conversion met our performance criteria, and we now have 38 trucks running this system, delivering to both John Lewis and Waitrose branches.

Commenting on the JLP order, Will Putter, Commercial Director, Prins Autogas UK said: “We are delighted to have been able to achieve the parameters and operating efficiencies JLP set us for its HGV fleet and to reduce its carbon footprint. The Prins Autogas Dieselblend 2.0 system has been developed to be used in a variety of vehicles and engines as a practical way to achieve emissions reductions for an existing fleet.”

Prins Autogas UK specialises in diesel HGV dual fuel conversions (LNG/CNG/LPG) and provides high quality installations for private and fleet vehicles at its own conversion centre in Southampton, Hampshire, as well as via a national network of Prins installers.

There are full details of the Prins Autogas UK systems available at, by emailing or by calling 02380 446467.