You should be able to find the answer in your manual in the glove compartment. If you can't find the manual that comes with the car, go to a VW dealership and ask the mechanics, they should know off the top of their head. My guess would be medium grade or premium. DON'T run low octane gas until you know. If your car was designed to run on low octane, running premium isn't going to hurt it very much if at all, while running low octane in a car meant to run high octane, even for a brief period, can cause serious damage to your heads that will cost upwards of 1 to 2 thousand.
Try 87 Octane, if it does not "ping" excessively you should be OK, If it does "ping" try 89 Octane
A 2002 Volkswagen Beetle Turbo takes 91 octane gas or higher. The manufacturer's recommended octane for this car will also be listed on the inside of the gas cap.
reg unleaded
unleaded gasoline. 87 octane or the lowest grade.
Premium Unleaded 91 octane fuel.
According to the 1998 Lincoln Navigator Owner Guide : ( " regular " unleaded gasoline , 87 octane )
86 octane is all that is needed. In otherwords...regular gas!
Regular unleaded. 87 octane.
" regular " unleaded , 87 octane
" regular " unleaded , 87 octane
All are designed for regular unleaded All are designed for regular unleaded
Each car should have a recommended fuel octane in the owners manual.