New vehicles or new & rebuilt engines have changed over the years. Today's higher quality parts with closer tolerances, means you can use synthetic oils from the start. I would only recommend a quick oil change for new or rebuilt motors at around 3-5,000 miles, due to eng break in. After that follow the oil manufacturer's recommendation for service intervals, not the car manufacturer's recommendations. I use Amsoil which is safe for up to 25,000 or 1 year which ever comes first, with filter changes at around 7,500 - 10,000 miles and a top off.