Using the same ecoFLEX name as its green car models, the large Vivaro and Movano vans, compact Combo and Astravan and compact Corsavan will all be fitted with ecoFLEX engines.
The diesel engines will feature Start/Stop technology to improve fuel economy and bring CO2 emissions down across the range.
This will result in lower road tax and benefit in kind taxes for business and fleet operators, says Vauxhall.
Steve Bryant, Brand Manager, Vauxhall Commercial Vehicles, said: "Vauxhall is the first manufacturer to offer an ‘eco’ product for each model in its range. Green credentials are becoming a higher priority for customers looking to reduce the carbon footprint of their vehicles."
The ecoFLEX badge will highlight the lowest CO2 model in each of Vauxhall’s ranges. For example, a Movano ecoFLEX 2.3 CDTI model will now offer 202g/km – one of the lowest CO2 emissions in its class.
It is a similar story for the Vivaro. The Luton-built van delivers CO2 emissions of 185g/km from two derivatives of the 2.0-litre CDTI engine.
At the other end of the scale, the compact Corsavan, based on the Corsa supermini, will offer CO2 emissions of 105g/km when fitted with the 1.3-litre CDTI engine with Start/Stop.
The ecoFLEX range will go up against Ford’s own eco signature, the ECOnetic vans. The Ford Transit, the UK’s best-selling van, delivers CO2 emissions of 189g/km under the ECOnetic signature.
Citroen also offers a range of low-CO2 vans and was recently awarded Green Van Manufacturer of the Year by Fleet Van.
However, Vauxhall is the first manufacturer to offer specially badged eco versions of all vans in its range for UK customers.
The green range of vans will be available from February from Vauxhall dealerships.