The top mistake drivers make when starting their car that could seriously damage it, according to a mechanic

Mechanics say this is one of the worst things you can do to a cold engine.

Here’s why.

Why Revving a Cold Engine Is So Harmful

When a car has been sitting, all the oil — which protects internal engine parts from friction — settles at the bottom of the engine. After you start the car, it takes a few seconds for the oil pump to circulate the lubricant throughout the system.

If you start revving the engine right away, you’re forcing metal components to spin faster before they’re properly lubricated. This can lead to:

1. Premature Engine Wear
Critical components like pistons, bearings, and cylinder walls experience extra friction when oil hasn’t fully circulated. Over time, this accelerates wear.