Ryan Gary

Ryan Gary

With a solid foundation of 20 years in the mechanical industry and a Mechanical Engineering degree, Ryan Gary brings a deep understanding of automotive systems to Engine Oil Journal. Driven by a passion for vehicles and a commitment to providing accurate information, he created this platform to empower drivers to make informed decisions about engine oil care.

Best 20W50 Oil for Hydrostatic Transmission(Top 5 Picks 2026)

Best 20W50 Oil for Hydrostatic Transmission

A high-quality 20W-50 oil is especially useful in zero-turn mowers, lawn tractors, and heavy-duty machinery where thicker oil helps handle high temperatures and loads. Best 20W50 Oil for Hydrostatic Transmission 1. AMSOIL 20W-50 Synthetic Hydrostatic Transmission Fluid AMSOIL stands out…

Best Oil for 3.0 Duramax(Top 5 Picks 2026)

Best Oil for 3.0 Duramax

Choosing the best oil for the 3.0 Duramax diesel engine is very important for long engine life, fuel efficiency, and protection of emissions systems like the DPF and turbocharger. This modern inline-six diesel engine used in GM trucks is designed…