compression ratio INFINITI QX50 2023 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 ...................................... 2-20
Startup display .............................. 2-20
Trip computer ............................... 2-21
Resetting the trip computer .................2-23
Tire Pressure Information (Display
Settings) .................................... 2-23
Oil control system ........................... 2-24
Vehicle information display warnings and
indicators ................................... 2-24Security systems
............................... 2-33
Vehicle security system ......................2-33
INFINITI Vehicle Immobilizer System .........2-34
Wiper and washer switch ......................2-36
Switch operation ............................ 2-36
Rain-sensing auto wiper system (if so
equipped) ................................... 2-37
Rear switch operation ....................... 2-38
Rear window defroster, outside mirror
defroster (if so equipped), and wiper deicer
(if so equipped) switch ......................... 2-39
Headlight switch ............................... 2-40
Headlight control switch ....................2-40
LED Daytime Running Lights (DRL)
system ..................................... 2-45
Instrument brightness control ................2-46
Turn signal switch ........................... 2-46
Fog light switch (if so equipped) .............2-47
Horn .......................................... 2-47
Climate
controlled seat switches (if so
equipped) ...................................... 2-48
Heated seats (if so equipped) ...................2-49
Heated 2nd row seat switches (if so equipped) . . 2-50
Steering Assist switch ........................... 2-51

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 gaugeDisplays 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

When the buzzer sounds, be sure to check
both the vehicle and the Intelligent Key
System. For additional information, see
“INFINITI Intelligent Key” (P. 3-6)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)
• 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 information
LIC3224
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 Metric measure 84.0 mm x 90.1 mm
US measure 3.307 in x 3.547 in
when compression ratio = 14 Metric measure 84.0 mm x 88.9 mm
US measure 3.307 in x 3.500 in
Displacement when compression ratio = 8 Metric measure 1,997 cm
3
US measure121.86 cu in
when compression ratio = 14 Metric measure 1,970 cm3
US measure120.22 cu in
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) Metric measure
0.9 mm
US measure 0.035 in
Camshaft operation Timing chain
This spark ignition system complies with the Canadian standard ICES-002.
SPECIFICATIONS
Technical and consumer information10-9