An operator is preparing a portable diesel generator for continuous overnight use in -35°C conditions to power job site heaters. Beyond standard fuel conditioning, what additional measure is essential to ensure reliable operation of both the generator and its fuel system until morning?

Question: An operator is preparing a portable diesel generator for continuous overnight use in -35°C conditions to power job site heaters. Beyond standard fuel conditioning, what additional measure is essential to ensure reliable operation of both the generator and its fuel system until morning?

Answer options:

• Doubling the concentration of anti-gel additive in the fuel tank.
• Applying external heat wraps to the generator's fuel lines and filter housing. ✅ Insulating the fuel tank and lines, and ensuring a continuous supply of heated fuel.
• Regularly cycling the generator on and off to prevent components from freezing.

Correct answer: Insulating the fuel tank and lines, and ensuring a continuous supply of heated fuel.

Explanation: For continuous operation in extreme cold, insulating the fuel system and providing heated fuel, often through a dedicated fuel heating system, is crucial to prevent gelling and maintain flow over extended periods.