More Muscle For Toyota Hilux

Toyota has ramped up the pulling power of its Hilux pick-up truck with a new 2.8-liter diesel engine.

It powers new top-of-the-range Invincible X and Invincible Double Cab models and is available with a choice of automatic or manual transmission, while entry-level models will continue using the 2.4-liter existing powerplant. The larger turbodiesel motor boasts double-overhead cams, 16-valve head with a displacement of 2,755cc.

The unit generates a claimed 201bhp at 3,400rpm with maximum torque of 368ft-lbs available between 1,600rpm and 2,800rpm when married to the six-speed automatic transmission. With manual transmission, the figure is 309ft-lbs, delivered between 1,400rpm and 3,400rpm.

Toyota says this delivers a significant performance boost compared to Hilux’s established 2.4-liter unit, with 0-62mph acceleration reduced by 2.1 seconds to 10.7 seconds using the automatic version. Despite more cubes and power, the automaker claims a reduction in fuel economy is modest with its data stating economy on the WLTP combined cycle data shows up to 30mpg (25mpg US) and 259g/km CO2 emissions with automatic transmission while manual transmission claims up to 33.2mpg (27.48mpg US) and 236g/km CO2 emissions.

Innovations on the new engine include an optimized combustion chamber shape, pistons and piston rings, a diamond-like carbon coating on the piston rings and slowing of the combustion gas flow to reduce cooling losses. There is also a two-stage oil pump that can change the oil pressure as required, reducing the pump driving force when the engine is cold or operating under light loads and the friction caused by early piston warm-up.

The exhaust gas recirculation section of the intake manifold is designed to suppress variation in the gas and intake efficiency has been improved by dispensing with the swirl control valve. Further measures have adjusted catalyst capacity and performance to ensure compliance with Euro 6d emissions regulations. Toyota claims the engine is also quieter with less vibration thanks to detailed adjustment to the shape of the intake manifold and the catalytic converter’s insulator.

— Paul Myles is a seasoned automotive journalist based in London. Follow him on Twitter @Paulmyles_

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