What's the name of the long, flat metal rod with a plastic ring grip the principal function of which is to show the oil level inside the engine?

A long, flat metal rod with a plastic ring grip constitutes the dipstick. Its first function is to show the oil level inside the engine, but it also serves other purposes. For example, the dipstick provides information about the oil's condition. Additionally, it might offer you an indication of the engine's internal health.

Asked by Vasilii Kulev · Last updated 3 years ago · 31.9K views · SOURCE