Fuel filler lid and cap

See also:

Adverse safety consequences of under-inflation
Driving at high speeds with excessively low tire pressures can cause the tires to flex severely and to rapidly become hot. A sharp in- crease in temperature could cause tread separation, and ...

Cooling system
WARNING Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray ...

Recommended clutch fluid
CAUTION Never use different brands of clutch fluid together. Also, avoid mixing DOT 3 and DOT 4 brake fluids even if they are the same brand. ...