On pages 8 and 9, the feature article provides a practical overview of gear-oil grading systems. It explains the differences between API performance ratings, SAE viscosity grades and military specifications, helping distributors better understand how gear oils are classified and how to select the correct product for various applications. The article emphasizes that evaluating all three classifications together provides the

This issue of the Distributor Magazine highlights key performance advantages across several product categories, led by a deep dive into Signature Series motor oil and volatility performance. Beginning on page 8, the article explains how the NOACK Volatility Test measures oil evaporation under extreme heat and why this matters in real-world driving. AMSOIL Signature Series delivers a 7.2% result versus

The issue focuses heavily on performance leadership with the launch of the next-generation Signature Series Synthetic Motor Oil (pages 8–11). After extensive testing, the new formulation delivers improved engine protection, including maintaining horsepower and torque over long drain intervals, enhanced resistance to LSPI, reduced volatility, and significantly improved piston cleanliness. Testing also showed zero sludge formation and strong durability across

The May 2026 Distributor Edition leads with more detail on the important relaunch for the motorcycle category, highlighted with the debut of AMSOIL 100% Synthetic Motorcycle Oil on page 8. This product replaces AMSOIL Synthetic Metric Motorcycle Oil and represents a significant upgrade to the entire “metric” motorcycle lineup. While product codes remain unchanged, the formulation has been fully updated