compression ratio INFINITI QX50 2022 Owners Manual

2 Instruments and controls
Instrument panel.................................2-2
Meters and gauges ..............................2-4
Speedometer and odometer ...................2-4
Tachometer ..................................2-6
Engine coolant temperature gauge ............2-6
Fuel gauge ...................................2-7
Distance To Empty (DTE) .....................2-7
Variable Compression Turbo ..................2-8
Warning lights, indicator lights and audible
reminders ........................................2-9
Checking lights .............................. 2-10
Warning/Indicator lights (red) ...............2-10
Warning/Indicator lights (yellow) ............2-13
Warning/Indicator lights (other) ..............2-17
Audible reminders ........................... 2-18
Vehicle information display .....................2-19
How to use the vehicle information
display ...................................... 2-19
Startup display .............................. 2-20
Resetting the trip computer .................2-20
Tire Pressure Information
(Display Settings) ........................... 2-20
Oil control system ........................... 2-20
Vehicle information display warnings and
indicators .................................... 2-21
Security systems ............................... 2-29
Vehicle security system ......................2-29INFINITI Vehicle Immobilizer System
.........2-30
Wiper and washer switch ......................2-32
Switch operation ............................ 2-32
Rain-sensing auto wiper system
(if so equipped) ............................. 2-33
Rear switch operation ....................... 2-34
Rear window defroster, outside mirror
defroster (if so equipped), and wiper deicer
(if so equipped) switch ......................... 2-35
Headlight switch ............................... 2-36
Headlight control switch ....................2-36
LED Daytime Running Lights (DRL)
system ..................................... 2-41
Instrument brightness control ................2-42
Turn signal switch ........................... 2-42
Fog light switch (if so equipped) .............2-43
Horn .......................................... 2-44
Climate controlled seat switches
(if
so equipped) ................................ 2-44
Heated seats (if so equipped) ...................2-45
Heated 2nd row seat switches (if so equipped) . . 2-46
Steering Assist switch .......................... 2-47
Front and rear sonar system switch
(if so equipped) ................................ 2-47
Head Up Display (HUD) (if so equipped) .........2-48
HowtousetheHUD........................ 2-49

VARIABLE COMPRESSION
TURBO
Your engine is equipped with a variable com-
pression ratio system called “Variable Com-
pression Turbo”. This system can vary the
engine compression ratio continuously.
According to driving conditions, the system
applies optimum compression ratio auto-
matically to achieve both high output and
high fuel economy efficiency.This is not a physical gauge. It is a display
option in the vehicle information display that
can be selected. For additional information,
see “Vehicle information display” (P. 2-19).
1Compression ratio status display
Displays the status of compression ratio
controlled by Variable Compression
Turbo. The lowest compression ratio
(8:1) and the highest (14:1) are displayed
as “Power” and ”Eco” respectively.
2Turbo charger boost pressure gauge
Displays the turbo charger boost
pressure.
NOTE:
Under some conditions, the compression ra-
tio may not change. This is not a malfunction
of the system.
CAUTION
If the Variable Compression Turbo be-
comes faulty, the Malfunction Indicator
Light (MIL) may come on. For additional
information, see “Malfunction Indicator
Light (MIL)” (P. 2-15).
LIC3924
2-8Instruments and controls

The vehicle information display is located to
the left of the speedometer. It displays such
items as:
• Trip computer information
• Drive system warnings and settings (if soequipped)
• Cruise control system information (if so equipped)
• Intelligent Cruise Control (ICC) (if so equipped) system information
• Intelligent Key operation information
• Indicators and warnings
• Tire Pressure information
• Compass • Audio
• Fuel Economy
• Driving Aids
• Engine Oil
• Chassis Control
• Navigation (if so equipped)
• ProPILOT Assist
• Traffic Sign Recognition (if so equipped)
• Variable Compression Turbo
• Other informationHOW TO USE THE VEHICLE
INFORMATION DISPLAY
The vehicle information display can be navi-
gated using theandbuttons lo-
cated on the steering wheel.
1.
and— select/enter the vehicle
information display menu items
Vehicle settings and features can be adjusted
in the lower display. For additional informa-
tion, refer to the separate INFINITI InTouch
TMOwner’s Manual.
LIC3224LIC3944
VEHICLE INFORMATION DISPLAY
Instruments and controls2-19

ENGINE
Model2.0L 4 cylinder (KR20DDET engine model)
Type Gasoline, 4-cycle, DOHC
Cylinder arrangement 4-cylinder, inline
Bore x Stroke when compression ratio = 8 in (mm) 3.307 x 3.547 (84.0 x 90.1)
when compression ratio = 14 in (mm) 3.307 x 3.500 (84.0 x 88.9)
Displacement when compression ratio = 8 cu in (cm
3) 121.86 (1,997)
when compression ratio = 14 cu in (cm3) 120.22 (1,970)
Firing order 1–3–4–2
Idle speed
No adjustment is necessary.
CVT in N (Neutral) position
Ignition timing (degree B.T.D.C. at idle speed)
CO%atidle
Spark plug
DILKAR7N9HG
Spark plug gap (Nominal) in (mm) 0.035 (0.9)
Camshaft operation Timing chain
This spark ignition system complies with the Canadian standard ICES-002.
SPECIFICATIONS
10-8Technical and consumer information