While drivingVolkswagen Touran Owners Manual. Petrol
First read and observe the introductory information
and safety warnings Petrol types
Vehicles with a petrol engine must be run on unleaded petrol in compliance with
the European standard EN 228 .
Petrol types are categorised according to their octane number, e.g. 91, 95, 98
or 99 RON ( ...
Volkswagen Touran Service Manual. Tires, Rolling Noises, General Information
Rolling noise perceived by the human ear is caused by
vibrations transmitted from the noise source to the ear via the
air.
Here we are interested in noises created by certain
characteristics of the tires as well as the effects of rolling ...