best way to preheating engine?

Asked by Guru6MK3M Apr 06, 2020 at 01:38 AM

Question type: Maintenance & Repair

I've heard that low-speed driving is better than preheating a car from a
standstill. I heard that the reason is the amount of oxygen. Then, if you blow the
wind with a fan in front like when driving, can you see the same effect?

1 Answer

F_O_R answered 4 years ago

The reason you drive slow rather than idling the car is to save gas. The thermostat keeps the coolant from circulating through the radiator when the engine is cold.

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