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.

Subaru Outback Engine Oil(Top 5 Best Picks 2026)

Subaru Outback Engine Oil

Choosing the right engine oil for your Subaru Outback is one of the most important steps in maintaining engine performance, fuel efficiency, and long-term reliability. This guide explains Subaru Outback oil requirements and highlights five of the best engine oils…

Marine Engine Oil Filter Cross Reference(For All Models)

Marine Engine Oil Filter Cross Reference

Choosing the correct oil filter and knowing reliable cross‑reference equivalents helps ensure proper oil flow, pressure, and engine longevity. This guide explains how marine oil filter cross-referencing works and provides a comprehensive, easy‑to‑use table covering common marine engine brands and…

ATF CVT Transmission Fluid(+ Top 3 best Picks)

ATF CVT Transmission Fluid

Using the correct ATF CVT transmission fluid is essential for performance, durability, and avoiding costly repairs. This guide explains what ATF CVT fluid is, how it differs from conventional ATF, and why choosing the right one matters so much. ATF…

Subaru Engine Swap Compatibility Chart(For All Models)

Subaru Engine Swap Compatibility Chart

Subaru’s EJ, FA, and FB engines share many similarities across models and years, which makes certain swaps straightforward, while others require wiring, ECU, and transmission modifications. This guide breaks down Subaru engine swap compatibility, offers a complete swap chart, and…

LS Engine Identification Chart(For All LS Models)

LS Engine Identification Chart

LS engines are used in everything from factory vehicles to high-performance custom builds. This guide provides a detailed LS engine identification chart, key tips, and frequently asked questions to help you identify your engine correctly. LS Engine Identification Chart LS…

Estes Rocket Engine Chart(For All Rocket Sizes)

Estes Rocket Engine Chart

Estes, the most popular brand in model rocketry, offers a wide range of engines, each designed for specific rocket sizes, weights, and performance levels. This guide breaks down the Estes engine coding system, thrust classes, and recommended uses, and provides…