Being a car owner and being a responsible car owner are two very different things. The former is a person who simply owns a car, while the latter is someone who loves their vehicle. If you’re among the latter, you probably already know how important it is to maintain your car regularly, check its vitals, and visit your mechanic at least once a year. This is true for all vehicles, regardless of their age and price range, but it’s even more important if you’re driving a car with a diesel engine.