1. Road conditions.
- A) Operation on bumpy, muddy or snow-covered roads.
- b) Operation on dusty roads.
- V) Operation on roads sprinkled with salt against icing.
2. Driving conditions.
- A) Towing a trailer or using the roof rack of a car.
- b) Repetitive short trips of less than 10 km when outside temperatures are below freezing.
- V) Excessive idling and/or driving at low speed for long distances.
- G) Regular high speed driving (80% or more of the vehicle's maximum speed for more than 2 hours).