Oil changes: How often do you need them? (Marketplace)
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 … source
Oil change scams: Hidden camera investigation on what really happens to your car (CBC Marketplace)
CBC Marketplace finds aggressive upselling and services paid for but not performedTo read the full story: http://www.cbc.ca/1.2418675. Originally broadcast Nov … source