I have never gotten any work done at the dealer besides a few oil changes, so I doubt they'll do it as a courtesy without more history there. If Kia does not provide a new engine, is my best ...

With so many available motor oil brands and several labels like "synthetic blend," "full synthetic," or "conventional," the process of choosing one for your car has now become somewhat tedious.

If you own a Cummins-powered vehicle, there's only one name you'll consistently hear when it comes to engine oil: Valvoline Premium Blue. The product is the only engine oil exclusively endorsed ...