Pennzoil experts ensure that Pennzoil products provide engine protection and legal compliance.

Oil Experts, Tests & Technical Compliance

Welcome to our central hub of technical authority, where we document the scientific benchmarks and rigorous testing behind every bottle of oil. We detail the precision engineering used to exceed the world's most stringent OEM specificaitons for engine cleanliness and longevity. Long may we drive.

Expert Articles On The Latest Techical Advancements

Stay in the know with expert-led research and testing, exclusive interviews, updates on the new ILSAC GF--7 standard, industry peformance requirements of API SN Plus, and more from Pennzoil^®.

What It Means To Be GF-7 Compliant

Get the most recent information on GF-7

The Safety Badge For Motor Oil: API SN PLUS

What You Need to Know About API SN PLUS

A Closer Look At How Motor Oil Standards Are Developed

Q&A with API Senior Manager Jeff Harmening

Tackling Tough Questions from Other Motor Oil Experts

Pennzoil and Bob Is The Oil Guy Q&A

Key Takeaways For Preventative Maintenance

Dive into the data that drives unbeatable engine protection from Pennzoil® and other experts.

Advanced GF-7 Standards
Critical LSPI Protection
Industry-Leading Compliance
Technical Validation
Expert Trails and Tests