Before the arguments start.
The manual states: SAE 5W-40, API SL / JASO MA2
No other temp ranges or other grades are mentioned. API SL is the latest and current spec.
So 5W-40 API SL it is, no quibbles
The manual states: SAE 5W-40, API SL / JASO MA2
No other temp ranges or other grades are mentioned. API SL is the latest and current spec.
So 5W-40 API SL it is, no quibbles

Any tips on how to check the oil level on the WC 
Maybe they're expecting it to use less oil