Video: There seems to be a lot of different opinions on how often should you change your engine oil? In a hidden camera investigation, we test what you’re told at the dealership and then actually test your engine oil in a lab to see who’s right.
Video: There seems to be a lot of different opinions on how often should you change your engine oil? In a hidden camera investigation, we test what you’re told at the dealership and then actually test your engine oil in a lab to see who’s right.