Toyota Yaris: Iridium-tipped spark plugs

Your engine is fitted with iridium-tipped spark plugs.
NOTICE.
Use only iridium-tipped spark plugs.
Do not adjust gaps for engine performance or smooth driveability.
Facts about engine oil consumption
FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of lubricating and cooling the inside of
the engine, and plays a major role in maintaining the engine in proper working order.
ENGINE ...
Brake system
The tandem master cylinder brake system is a hydraulic system with two separate
sub-systems. If either sub-system should fail, the other will still work. However,
the pedal will be harder to press ...
See also:
Assist grips
An assist grip installed on the ceiling can be used to support your body while
sitting on the seat.
CAUTION
■Assist grip
Do not use the assist grip when getting in or out of the vehicle o ...
Service specifications
ENGINE
Valve clearance (engine cold), mm (in.): Intake 0.15—0.25 (0.006—0.010).
Exhaust 0.25—0.35 (0.010—0.014).
Spark plug type: DENSO SK16R11.
NGK IFR5A11.
Spark plug gap, mm(in.):
...
Handling precautions on related components
1. BRAKE SYSTEM
The brake system is one of the most important safety components. Always follow
the directions and notes given in the brake (32) section of the repair manual for
the relevant model ...