A top mechanic has identified the one major issue that is plaguing second-hand used cars built in the last eight years.

Forgetting to pour one thing inside your vehicle could backfire and lead to major damage of key components this summer.

Drivers could be slapped with a hefty £80 fine for making a simple error behind the wheel of their vehicle this June.

Motorists have been told to never forget to check this one car component before finalising a used car sale.