Pennzoil’s “motor oil reimagined” marketing campaign is based on gas-to-liquid (GTL) base oil technology. Consumers should be aware that GTL technology is simply a process that converts natural gas, obtained by Pennzoil from Qatar, into Group III base oil. Because motor oils are formulated with GTL does not mean they outperform other synthetic formulated oils. There is no magic base oil that elevates one motor oil over all others. It’s the precise combination of quality base oils and additives that defines motor oil performance, and AMSOIL motor oils are built on this foundation.