What's the 2005 Volkswagen Beetle oil type?

Your 2005 Volkswagen Beetle is going to want to be filled up with some SAE 5W-40 synthetic oil. You're free to vary the viscosity slightly, as it won't hurt Your vehicle, thought it's usually best to stick with what the manufacturer has placed in there. Depending on the trim level (and thus, engine), You're looking at needing between 5 to 8 quarts to fill it at a change. It's important to remember to get Your oil changed frequently to maximize the life of Your vehicle. If You're using the recommended synthetic blend, You'll want to get it changed out about every 12 months to get rid of the contaminants and other artifacts that can be detrimental to it keeping all Your parts properly lubed.