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.

Engine Oil Sludge Symptoms(10 Signs, Causes/Fixes)

Engine Oil Sludge Symptoms

Oil sludge is one of the most common causes of premature engine failure. It restricts oil flow, increases friction, and can lead to expensive repairs if left untreated. Fortunately, your vehicle usually shows several warning signs before serious damage occurs.…

Duramax Engine Oil Type(5 Best Options 2026)

Duramax Engine Oil Type

Choosing the right Duramax engine oil type helps reduce wear, improve fuel efficiency, protect against sludge, and keep the turbocharger properly lubricated. In this guide, we’ll explain the recommended oil viscosity, specifications, oil change intervals, and review five of the…

BMW X5 Engine Oil Type(5 Best Options 2026)

BMW X5 Engine Oil Type

In this guide, you’ll learn the recommended BMW X5 engine oil type, how to choose the right viscosity, oil capacity, oil change intervals, and the five best engine oils available. BMW X5 Engine Oil Type 1. BMW TwinPower Turbo SAE…

Non Detergent Engine Oil(4 Best Options 2026)

Non Detergent Engine Oil

Non detergent engine oil may seem outdated in today’s automotive world, but it still serves an important purpose in specific engines and equipment. While modern cars require detergent motor oils that keep engines clean and suspend contaminants, many vintage engines,…

Mazda CX 5 Engine Oil(6 Best Picks 2026)

Mazda CX 5 Engine Oil

In this guide, you’ll learn the recommended oil specifications, oil capacities, oil change intervals, and the six best engine oils for the Mazda CX-5 available. Mazda CX 5 Engine Oil 1. Mobil 1 Advanced Fuel Economy Full Synthetic 0W-20 Mobil…

High Zinc Engine Oil(6 Best Options for 2026)

High Zinc Engine Oil

High zinc engine oil remains one of the best choices for protecting high-performance, classic, and flat-tappet engines. While modern engine oils are formulated to meet strict emissions standards, many contain lower levels of zinc and phosphorus than older formulations. This…