Engine torque: Likewise, when towing, you
need plenty of engine torque to accelerate
quickly. When you compare the performance
of different engines, you will see that diesel
engines have more ‘low-down’ (rpm) torque
available than petrol engines. This permits a
faster acceleration from low speeds, with
fewer gear-changes required.
It is suggested that the ratio of Newton
metres to GCM Rating (tonne) should be more
than 65Nm per tonne. For example, with a
GCM rating of six tonnes, the engine should
have (maximum) torque of at least 390Nm.
Fuel: While LPG has many financial, technical
and environmental advantages, it is not
suitable for extended outback travel. The choice
of fuel is therefore really between petrol and
diesel. Considerations include the costs and
availability in different regions of the country,
any extra cost of the vehicle, and differences
between servicing periods and expenses.
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