Car: 2005 Chrysler 300C
Join Date: Aug 2004
Location: San Diego, CA
Thanked 6 Times in 4 Posts
Regarding when to start using synthetic oil, I read on ROYAL PURPLES' web site that they recommend not using their oil until at least 2000 miles:
"Royal Purple® currently offers many viscosity grades of API Licensed Motor Oils. (See the Royal Purple® Motor Oil Product Page or visit the API Engine Oil Licensing and Certification Website for more information). To allow for proper breakin of the engine, Royal Purple® recommends waiting until the manufacturer's first scheduled oil change or a minimum of 2,000 miles in new gasoline engines. Allow 8,000 to 10,000 miles before using Royal Purple® in diesel engines."
Others say there is no difference and you can use synthetics from the start.
Which is it?