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TLDR: An engine-block heater is a smart, cheap investment if you want to warm up your car's fluids before actually starting your engine. You Might Also Like 70 Impressive Tiny Houses That Maximize ...
"Older vehicles with carburetors usually need to warm until up to operating temperature," said Sinclair. But many vehicles that use this technology are starting to move into the classic car category.
It may only get worse as the cold weather wears on. Best tips to winterize your car to prepare for the cold road ahead. ... Animals. Business. Food.
A cold start is an attempt to start a vehicle's engine when ambient temperatures are much lower than its normal operating temperature. [1] A cold start can be difficult for an engine due to higher viscosity of oil and fuel in cold temperatures.
Conveniently this was also the hottest accessible part of the cooling circuit, giving a fast response when warming up. Cooling circuits have a small bypass path even when the thermostat is closed, usually by a small hole in the thermostat. This allows enough flow of cooling water to heat the thermostat when warming up.
Inefficient catalytic converter under cold conditions: Catalytic converters are very inefficient until warmed up to their operating temperature. This time has been much reduced by moving the converter closer to the exhaust manifold and even more so placing a small yet quick-to-heat-up converter directly at the exhaust manifold.
Allowing an engine to warm up before driving is no longer needed. Today's engines are designed with much tighter tolerances and use lubricants that flow (in most cases) like water, per Shelton ...
Top: Lateral view; the red circles mark the front air dam/splitter and rear diffuser. Bottom: Rear. A diffuser, in an automotive context, is a shaped section of the car rear which improves the car's aerodynamic properties by enhancing the transition between the high-velocity airflow underneath the car and the much slower freestream airflow of the ambient atmosphere.