Most cars require between 4 to 8 quarts of engine oil, depending primarily on the engine size. Smaller engines, such as 4-cylinder ones, typically need about 4 to 5 quarts of oil, while larger engines like V6 or V8 usually require between 6 to 8 quarts. Some six-cylinder engines may even need up to 12 quarts, especially in trucks or diesel vehicles with bigger engines
. Key points:
- A 4-cylinder engine generally takes around 4 to 5 quarts.
- A 6-cylinder engine usually needs about 5 to 6 quarts.
- Larger engines (V6, V8, diesel) can require 6 to 8 quarts or more.
- Oil filter replacement adds a small amount (roughly 0.25 to 0.5 quarts) to the total oil capacity
It's important to use the exact amount recommended by your vehicle's owner manual to avoid engine damage from overfilling or underfilling. Overfilling can cause oil aeration, increased pressure, and damage to seals, while too little oil risks insufficient lubrication and overheating
. For precise oil quantity, always refer to the owner’s manual or manufacturer specifications, as oil capacity varies by make, model, and engine type.