Ryan Gary

Ryan Gary

Ryan Gary is an automotive enthusiast with over 15 years of hands-on experience in the mechanical industry. His passion for engines, vehicle maintenance, and lubrication inspired him to create Engine Oil Journal, a trusted resource dedicated to helping drivers, DIY mechanics, and automotive enthusiasts make informed decisions about engine oils, transmission fluids, and vehicle maintenance. Through well-researched, practical content, Ryan aims to simplify complex automotive topics and help readers keep their vehicles running at their best.

8 Cylinder Engine Firing Order (For All Car Models)

8 Cylinder Engine Firing Order

The firing order is carefully engineered to balance engine operation, minimize vibration, maximize power, and reduce crankshaft stress. While all V8 engines have eight cylinders, their firing orders differ depending on the manufacturer and engine family. Using the correct firing…

SAE Engine Oil Viscosity Chart(For All Grades)

SAE Engine Oil Viscosity Chart

Engine oil viscosity is one of the most important factors in protecting your engine. The Society of Automotive Engineers (SAE) developed a standardized viscosity grading system that helps drivers choose the correct oil based on temperature and operating conditions. In…