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.