See also:

Power steering fluid
Power steering fluid Check the fluid level in the reservoir. The fluid level should be checked using the HOT range (*1 : HOT MAX., 2 : HOT MIN.) at fluid temperatures of 122 to 1768F (50 to 808C) ...

Temperature
A temperature increase will accelerate the rate of corrosion to those parts which are not well ventilated. ...

Waxing
Regular waxing protects the paint surface and helps retain new vehicle appearance. Polishing is recommended to remove built-up wax residue and to avoid a weathered appearance before re-applying wax. ...