Kenny and Marc camped near lake Titisee in the Black Forest last night. The scenery was stunning and it attracts lots of tourists.

They set out this morning in search of fuel. In Germany, rapeseed oil is available from over 100 filling stations, but unless you know which ones they are, you could spend ages searching for them. Fortunately, this website shows you where they all are on a map: http://www.rerorust.com/db/

Using vegetable oil from other sources involves registering as an oil producer - something that isn't practical for tourists who are just passing through. Germany has been using vegetable oil as fuel for many years and it is treated as a mature technology. They have a DIN standard for rapeseed oil, and anything that doesn't meet the standard is taxed.

After filling up, they headed for Austria and spent the night in Salzburg.