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When a car has been sitting for hours, especially overnight, the engine oil has settled into the oil pan. Once the car starts, the oil pump begins circulating it, but it takes roughly 30 to 40 seconds for the lubricant to reach every critical component.
Shifting into gear immediately means that pistons, cylinders, and bearings start moving at high speed before they are fully protected by oil.
The Hidden Damage: Friction and Wear
Mechanics often see this firsthand. For example, an engine belonging to a driver who always drove off immediately after starting had severely worn main bearings, requiring expensive repairs like precision grinding and part replacement. This shows the damage is real, costly, and completely avoidable.
Simple Steps to Protect Your Engine
The solution is straightforward: a little patience goes a long way.
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