oil additives MAZDA MODEL 2 2017 Owners Manual (in English)

3–55
Before Driving
Driving Tips
Turbocharger Information (SKYACTIV-D 1.5)
CAUTION
  After driving at freeway speeds or up a long hill, idle the engine at least 30 seconds
before stopping it. Otherwise, the turbocharger could be damaged. However, when
i-stop operates, idling is unnecessary.
  Racing or over-revving the engine, particularly after it's just been started, can damage
the turbocharger.
  To protect the engine from damage, the engine is designed so that it cannot be raced
just after starting it in extremely cold weather.
The turbocharger greatly enhances engine power. Its advanced design provides improved
operation and requires minimum maintenance.

To get the most from it, observe the following.

1. Change engine oil and ¿ lter according to Scheduled Maintenance (page 6-3 ).
2. Use only recommended engine oil (page 6-23 ). Extra additives are NOT
recommended.