Choosing the right engine oil for your Volkswagen Passat is one of the most crucial steps in ensuring your vehicle’s longevity, performance, and reliability. With the Passat’s long production history and a variety of engine options, oil requirements have evolved significantly over the years. The most important factor is not just the oil’s viscosity (such as 5W-40 or 0W-20), but whether it meets the specific Volkswagen (VW) approval for your engine. This comprehensive guide breaks down the recommended oil types for different Passat model years and engines, explains why VW approval matters, and provides actionable tips for confirming the correct oil for your car.

While viscosity (the “5W-40” or “0W-20” part) is important for cold starts and high-temperature protection, the VW approval is what ensures the oil contains the correct additive package and performance standards your engine needs. Full synthetic oil is almost always required for modern Passats—especially turbocharged and direct-injection engines. Using oil without the correct VW approval can lead to deposits, increased wear, and potential warranty issues.

Check two places:

1) The oil cap under the hood usually lists the recommended viscosity.

2) Your owner’s manual shows both viscosity and the required VW specification (e.g., 502 00, 504 00, 507 00, 508 00). Only use oil that explicitly lists the correct VW approval on the label.

For most Passat models using full synthetic oil, Volkswagen recommends changing the oil every 7,500 to 10,000 miles. If you drive in severe conditions—frequent short trips, very hot/cold climates, or heavy stop-and-go traffic—consider shorter intervals (around 5,000 miles). Regular changes with the correct VW-approved oil are the best way to keep your Passat running smoothly and protect your investment.

If you want a quick rule that works for many gasoline Passats, use a 5W-40 full synthetic with VW 502 00 approval. This is a safe answer for most 2006–2018 gas models. For many newer 2019+ 2.0T U.S. Passats, the requirement is often 0W-20 with VW 508 00—so always double-check your oil cap and manual.