How Motor Oil is Made from Natural Gas: A 3-Step Process
Motor oil can be synthesized from natural gas through a sophisticated Gas-to-Liquids (GTL) process.
Leaks, burning oil, dirty filters, warning signs and how to stay ahead of them.
Open the guide → 02🛢️Synthetic vs conventional, high-mileage, and which grade your car calls for.
Open the guide → 03🔧Step-by-step, intervals, tools, and how much oil your engine needs.
Open the guide → 04🏷️What an oil change costs, where it is cheapest, and quart-vs-jug math.
Open the guide →The grade chart
Most "what oil?" questions are really grade questions. Here is what the common ones are built for.
Newer engines, cold climates. Thinnest flow for fast starts and fuel economy.
The all-rounder. The most common spec in North America.
Performance & diesel. Holds thicker when hot — turbos and towing.
Older or high-mileage. Extra hot-viscosity cushion for worn engines.
Our standard
Oil advice is worthless if it ignores your engine's spec. Everything here anchors to what the manufacturer actually calls for.
Grades and approvals trace to owner's-manual requirements and standards like API and ILSAC.
The 3,000-mile rule and "thicker is better" get called out where they show up, with the reasoning.
If a guide and your manual disagree, the manual wins — and we say so. Read the editorial policy.
Straight talk on engine oil — grades, brands, and what your car actually needs.
Motor oil can be synthesized from natural gas through a sophisticated Gas-to-Liquids (GTL) process.
Choosing the right synthetic oil is crucial for your engine's longevity and performance. This guide breaks down what makes a synthetic oil superior, comparing top…
Discover the practicalities of mixing synthetic and synthetic blend motor oils. This guide breaks down what happens, when it's okay, and when you should avoid it to…
Understanding the difference between synthetic and fully synthetic oil is crucial for optimal engine performance and longevity.
Determining the correct oil for your riding lawn mower is crucial for its longevity and performance.
Discover the optimal interval for changing full synthetic motor oil, often around 7,500 miles, and understand why this frequency is crucial for your engine's longevity…
Discover how to reset your Jeep Cherokee's oil life monitor with a straightforward, step-by-step guide.
Wondering how long your full synthetic oil change truly lasts? Typically, you can expect it to last around 9,000 to 15,000 miles, offering superior engine protection…
Deciding where to get your car's next oil change can feel overwhelming. Valvoline offers a compelling blend of specialized service, brand trust, and efficiency that…
The HifloFiltro HF198 premium oil filter is a critical component for keeping your motorcycle's engine running smoothly and reliably.
Understanding your vehicle's powertrain warranty is crucial for unexpected repairs. This guide clarifies whether oil leaks are typically covered, the nuances involved…
Curious about what a high mileage oil change entails? It's a specialized service designed for vehicles with over 75,000 miles, offering enhanced protection against…