<https://www.royalpurple.com/ufaqs/can-your-motor-oil-be-used-in-older-engines/>
<http://schema.org/description>
"Yes. Mileage and/or age is not a factor when used in a mechanically sound engine. In high-mileage applications, we do recommend running a minimum of two"
<https://www.royalpurple.com/ufaqs/can-your-motor-oil-be-used-in-older-engines/>