Valvoline and NAPA are two different brands of motor oil. They are not the same.
Valvoline is a petroleum-based motor oil that has been around since 1866. It is made from natural gas and crude oil. Valvoline is one of the most popular motor oils on the market and is used by many carmakers, including Ford, GMC, and Chrysler.
NAPA is also a petroleum-based motor oil, but it is synthetic. NAPA was developed in the 1970s as an alternative to traditional motor oils. It is made from synthetic base stocks and additives. NAPA is less popular than Valvoline, but it does have some fans because it tends to last longer and perform better in high-temperature conditions.