1 ptsD,D1Official number: 7216
What type of engine oil should you use in diesel engines used in buses?
Explanation
Correct answer: As specified by the bus manufacturer.
The type and specification of the engine oil are always specified by the vehicle's manufacturer, in this case, the bus. Using an oil with parameters other than those recommended may lead to engine damage. Information on the correct oil can be found in the vehicle's instruction manual, and the filler cap visible in the picture only indicates the location for topping it up.