Powerful & Fuel-efficient Engine The M8540 and M9540 are equipped with a 230 cubic inch (3.8L) V3800DI-T diesel engine that employs a powerful and fuel-efficient 4-valve, centre-direct injection system. Combine this with the turbo charger and you have all the power you’ll need, especially in the low rpm range, to perform heavy-duty tasks and during operations that require outstanding traction. Because it’s a low-emissions engine, it’s great for your productivity, profit and the environment too.