What type of oil for 1970 VW vanagon?

For a 1970 VW Vanagon, it's recommended to use a high-quality SAE 30 motor oil for the air-cooled engine. If you live in a colder climate, you may consider using a multi-viscosity oil like 10W-30 for better cold-start performance. Always check the owner's manual for specific recommendations and ensure the oil meets API specifications suitable for older engines.