I've spent the last 5 hours trying to explain oil changes

My friend has a 2007 Hyundai Elantra. She hasn't changed the oil in 10,000 miles (since she bought it). I looked at the oil on the dipstick today and its essentially solid black. She goes to Pep Boys and buys the parts because her mom 'knows how to do it'. Turns out her mom was just going to top off the oil. Her mom also said, 'we don't need to change the filter, the previous owner did it before we bought it'. So tomorrow she's going to her mechanic and having them do it.

Sigh.

Also, her mom's focus just lost its engine because she didn't change the oil.

Sigh Sigh.

Have some Aston porn.