Hi Harry. There are two ways to add Sea Foam to your Volkswagon, to fuel and to oil. When adding to fuel, I like to add a can when the tank is low and drive at least 20 miles to optimize the higher cleaning concentration. This will work to clean and lubricate fuel injectors and upper engine areas. For use in oil, add half a can 100 to 300 miles before each oil change. When added to oil, Sea Foam works to reliquefy harmful oil residues and deposits, helping to keep the crankcase clean and to improve oil flow.
Hi Harry. There are two ways to add Sea Foam to your Volkswagon, to fuel and to oil. When adding to fuel, I like to add a can when the tank is low and drive at least 20 miles to optimize the higher cleaning concentration. This will work to clean and lubricate fuel injectors and upper engine areas. For use in oil, add half a can 100 to 300 miles before each oil change. When added to oil, Sea Foam works to reliquefy harmful oil residues and deposits, helping to keep the crankcase clean and to improve oil flow.