As cars become commonplace in households, the question of whether to add engine break-in oil to a new vehicle has long been a ...

Breaking in a car's engine properly can save you lots of headaches down the road. But how to break it in can vary widely depending on what you're driving.

Although most engine oil and gasoline varieties work fine on their own, sometimes they could use a little help with an additive.

Reciprocating Engine Oil 101 Oil types fall into three main types— straight mineral, ashless-dispersant, and synthetic— and all need to be changed regularly.

Wankel rotary engines, typically but not exclusively found in Mazdas, certainly lean on the "quirkier" side of modern powertrain systems, made quirkier because most rotary-powered cars on the road ...