No changes to the engine line-up for the refresh of the 2015 Mazda BT-50.

The five-cylinder turbo-diesel that produces 147kW of power at 3,000rpm and peak torque of 470Nm from 1,750-2,500rpm. We sampled the engine with both the 6-speed manual and 6-speed automatic transmissions.

The engine has a claimed fuel economy of 9.2l/100kms, on our run from Melbourne airport to Blackwood via Mt Macedon we achieved 9.3l/100km.

The five-cylinder engine from Mazda runs an alloy cylinder head and common-rail high-pressure direct injection.

Off road the engine performed flawless with the flat torque curve not delivering any surprises as we bounced down narrow tracks in the Wombat state forest.