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Infiniti Service Advisor Study Guide

Every model, powertrain, and maintenance interval — organized for quick reference.

Quick Facts

15

Total Models

5

Current

10

Discontinued

4

CVT Models

6

Turbo Models

3

Hybrid/EV

Transmission Types in Lineup

7-Speed AutomaticCVT (Continuously Variable)7-Speed Dual-Clutch (DCT)5-Speed Automatic

Key Things to Know

  • •Most current models use VR30DDTT V6 twin-turbo (Q50, Q60, QX50 is the exception).
  • •QX50/QX55 use VC-Turbo (variable compression) with a CVT — unique powertrain combo.
  • •Q50/Q60 available with 7AT RWD. AWD models add a front differential service interval.

All Infiniti Models

15models — sorted alphabetically. Every year range and powertrain variant is listed.

EX35 / EX37

Discontinued
AWD
2008–2013
AWD
○ Researched
Engine

VQ35HR (EX35) | VQ37VHR (EX37)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

FX35 / FX37 / FX50

Discontinued
AWD
2009–2013
AWD
○ Researched
Engine

VQ35HR (FX35) | VQ37VHR (FX37) | VK50VE (FX50)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

G35

Discontinued
AWD
2003–2008
AWD
○ Researched
Engine

VQ35DE 3.5L V6 NA (2003-2006) | VQ35HR 3.5L V6 (2007-2008)

Fuel

gasoline

Transmission

5-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

Trim-Specific Transmissions

2003–2008

Manual: 6-Speed Manual

G37

Discontinued
AWD
2008–2013
AWD
○ Researched
Engine

VQ37VHR 3.7L V6 NA

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

Trim-Specific Transmissions

2008–2013

Manual (coupe IPL/Sport): 6-Speed Manual

JX35

Discontinued
CVTAWD
2013
CVTAWD
○ Researched
Engine

VQ35DE 3.5L V6 NA

Fuel

gasoline

Transmission

CVT (Continuously Variable)

Drivetrain

FWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

M37 / M56

Discontinued
AWDGDI
2011–2013
AWDGDI
○ Researched
Engine

VQ37VHR (M37) | VK56VD (M56)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

Q50

Current
AWDHybridTurboGDI
2016–present
TurboAWDGDI
○ Researched
Engine

VR30DDTT 3.0L V6 Twin-Turbo (300hp standard, 400hp Red Sport)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

60K miles

Drive Belt

90K miles

2014–2015
AWD
○ Researched
Engine

VQ37VHR 3.7L V6 NA

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

2014–2019

Q50 Hybrid trim only

HybridAWD
○ Researched
Engine

VQ35HR Hybrid (3.5L + electric)

Fuel

gasoline + electric

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

Q60

Discontinued
TurboAWDGDI
2017–2022
TurboAWDGDI
○ Researched
Engine

VR30DDTT 3.0L V6 Twin-Turbo (300hp / 400hp Red Sport) | VQ37VHR (2017 base)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

60K miles

Drive Belt

90K miles

Q70

Discontinued
HybridAWD
2014–2019
HybridAWD
○ Researched
Engine

VQ37VHR 3.7L V6 | VK56VD 5.6L V8 (Q70 5.6) | VQ35HR Hybrid (Q70 Hybrid 2014-2015)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

QX30

Discontinued
TurboAWDGDIDCT
2017–2019
TurboAWDGDIDCT
○ Researched
Engine

2L — M270 (Mercedes 2.0L Turbo)

Fuel

gasoline

Transmission

7-Speed Dual-Clutch (DCT)

Mercedes 7G-DCT dual-clutch — NOT Nissan 7AT. Different fluid, different service.

Drivetrain

FWD, AWD

Spark Plugs

40K miles

Drive Belt

90K miles

QX50

Current
AWDTurboCVTGDI
2019–present
TurboCVTAWDGDI
○ Researched
Engine

2L — KR20DDET 2.0L VC-Turbo

Fuel

gasoline

Transmission

CVT (Continuously Variable)

Drivetrain

FWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

2014–2017

QX50 1st gen = rebadged EX37 (longitudinal RWD platform).

AWD
○ Researched
Engine

VQ37VHR 3.7L V6 NA

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

QX55

Current
TurboCVTAWDGDI
2022–present
TurboCVTAWDGDI
○ Researched
Engine

2L — KR20DDET 2.0L VC-Turbo

Fuel

gasoline

Transmission

CVT (Continuously Variable)

Drivetrain

AWD

Spark Plugs

105K miles

Drive Belt

90K miles

QX60

Current
CVTAWDHybridGDI
2022–present
AWDGDI
○ Researched
Engine

VQ35DD 3.5L V6 DI

Fuel

gasoline

Transmission

9AT_mb

Mercedes-Benz 9G-TRONIC sourced. Uses Mercedes ATF spec (236.15 or equivalent). Different op code than Nissan-sourced 9AT.

Drivetrain

FWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

2014–2020
CVTAWD
○ Researched
Engine

VQ35DE 3.5L V6 NA

Fuel

gasoline

Transmission

CVT (Continuously Variable)

Drivetrain

FWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

2014–2017

QX60 Hybrid trim only — rare in service (low US sales).

CVTHybridAWD
○ Researched
Engine

QR25DER Hybrid (2.5L supercharged + electric)

Fuel

gasoline + electric

Transmission

CVT (Continuously Variable)

Drivetrain

FWD, AWD

Spark Plugs

60K miles

Drive Belt

90K miles

QX70

Discontinued
AWD
2014–2017
AWD
○ Researched
Engine

VQ37VHR 3.7L V6 | VK50VE 5.0L V8 (QX70 5.0)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, AWD

Spark Plugs

105K miles

Drive Belt

90K miles

QX80

Current
4WDGDITurbo
2025–present
Turbo4WDGDI
○ Researched
Engine

3.5L — VR35DDTT 3.5L V6 Twin-Turbo (450hp)

Fuel

gasoline

Transmission

9AT_nissan

Drivetrain

RWD, 4WD

Spark Plugs

60K miles

Drive Belt

90K miles

2011–2024
4WDGDI
○ Researched
Engine

5.6L — VK56VD 5.6L V8 (Endurance)

Fuel

gasoline

Transmission

7-Speed Automatic

Drivetrain

RWD, 4WD

Spark Plugs

105K miles

Drive Belt

90K miles

Frequently Asked Questions

How many Infiniti models are currently in production?
Infiniti currently has 5 models in production, plus 10 discontinued models covered in this guide. There are also 3 hybrid or plug-in hybrid models.
What transmission types does Infiniti use?
Across the Infiniti lineup, transmission types include: 7-Speed Automatic, 5-Speed Automatic, CVT (Continuously Variable), 7-Speed Dual-Clutch (DCT). Each model section above lists the exact transmission for every year range and trim. 4 models in the lineup use a CVT or CVT variant.
What are the key service differences across the Infiniti lineup?
The biggest service differences come down to powertrain type. Turbocharged models typically need spark plugs sooner (often 40K-60K miles vs. 75K-105K for naturally aspirated). CVT-equipped models require manufacturer-specific CVT fluid and should never receive conventional ATF. EVs eliminate spark plugs, drive belts, and transmission fluid entirely but still need brake fluid, cabin filter, and tire service. AWD and 4WD models add differential and transfer case fluid services. Specifically for Infiniti: Most current models use VR30DDTT V6 twin-turbo (Q50, Q60, QX50 is the exception).
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