See also:

When checking or servicing in the engine compartment while the engine is running
WARNING A running engine can be dangerous. Keep your fingers, hands, clothing, hair and tools away from the cooling fan, belts and any other moving engine parts. Removing rings, watches and ties ...

Fuel
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Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table. ...