Purpose, Function
The cylinder block forms the cylinder and crankcase.
Construction
The cylinder block consists of the upper cylinder block and lower cylinder block.
The cylinder block is an open deck type with excellent cooling performance.
The lightweight cylinder block is made of aluminum alloy with excellent heat dispersion.
With the adoption of the lower cylinder block, the coupling rigidity of the transaxle and support rigidity of the crankshaft have been improved reducing engine vibration.
The oil separator function is set to the upper cylinder block, enhancing ventilation of the blow-by gas.

Engine Assembly
Engine Front CoverDynamic Stability Control (DSC)
Outline
Electrical brake assist control has been adopted, improving safety.
The DSC HU/CM, integrating both the hydraulic unit (HU) and control module
(CM), has been adopted, resulting in a size and weight reduction.
An enhanced malfunction diagnosis system, used with the M ...
Fuel and Engine Exhaust Precautions
Fuel Requirements
Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.
Your Mazda will perform best with fuel listed in the table.
Fuel with a rating lower than 87 octane (91 RON) could ...
Lumber Support Motor Inspection
WARNING:
Handling a side air bag improperly can accidentally operate (deploy) the
air bag, which may seriously injure you. Read the service warnings/cautions
in the Workshop Manual before handling the front seat (side air bag integrated)..
1. Disconnect the negative battery cable ...