CARCARETOOL VEHICLE GUIDE

Infiniti M37X

Infiniti M37X — 4-door sedan. Explore engine specifications, fuel economy, dimensions, tire sizes, seating, maintenance and tire-pressure guidance.

About the Infiniti M37X

Infiniti M37X is a 4-door sedan in the executive car class. The guide brings together the vehicle information currently available for this model. Public source material describes the model in the context of its design, market positioning and vehicle history.

This guide is designed to answer practical questions about the Infiniti M37X, including its specifications, engine, fuel economy, tires, maintenance and ownership details.

Infiniti M37X specifications at a glance

Use this table for the model-level essentials. Exact figures may vary by year, trim, engine and market.

Make	Infiniti
Model	M37X
Model years	Not specified
Body style	4-door sedan
Vehicle class	Executive car
Manufacturer	Nissan
Production	1989–1992 (M30 coupé)2002–2019 (M sedan)
Market / country	CA, NL, US

Engine, transmission and performance

The available source data does not identify a single engine configuration for every Infiniti M37X variant.. Published power figures include 330 hp@ 7,000, 270 lbft @5,200; 237 hp @ 3,750, 406 lbft @ 1,750–2,500.

Power	330 hp@ 7,000, 270 lbft @5,200; 237 hp @ 3,750, 406 lbft @ 1,750–2,500

Infiniti M37X other specifications

Name	Infiniti M
Image	2011 Infiniti M37 — NHTSA 1.jpg
Aka	Infiniti Q70 (2013–2019)Nissan Fuga (SWB; 2009–2022)Nissan Cima (hybrid LWB; 2012–2022)
Caption	2011 Infiniti M37

TIRE PRESSURE

Recommended tire pressure for Infiniti M37X

Check the vehicle placard or owner’s manual for the manufacturer’s cold inflation pressure. CarCareTool estimates are clearly labelled when an exact verified value is unavailable.

Normal load34 PSI front32 PSI rear

Fully loaded36 PSI front35 PSI rear

Load condition	Front	Rear	Status
Normal	34 PSI	32 PSI	Estimate
Fully loaded	36 PSI	35 PSI	Estimate

Calculate how much air to add

Frequently asked questions about Infiniti M37X

These FAQs are generated automatically for this specific vehicle from the specifications, features and ownership data available in CarCareTool. Questions are selected by relevance so the page focuses on details that can actually be answered for this model.

What tire pressure should I use for the Infiniti M37X?

For the correct setting, use the cold inflation pressure on the vehicle placard or in the owner’s manual. When CarCareTool does not have a verified configuration-specific value, its starting estimate is 34 PSI front and 32 PSI rear for normal load. This is an estimate, not an OEM recommendation.

What is the best engine oil for the Infiniti M37X?

There is no single best engine oil for every Infiniti M37X configuration. Use the viscosity grade and manufacturer approval specified for the exact engine in the owner’s manual.

What body style is the Infiniti M37X?

The Infiniti M37X is classified as a 4-door sedan.

How much horsepower does the Infiniti M37X have?

The published figure for the Infiniti M37X is 330 hp@ 7,000, 270 lbft @5,200; 237 hp @ 3,750, 406 lbft @ 1,750–2,500. Output can vary by engine and specification.

Who makes the Infiniti M37X?

The manufacturer listed for the Infiniti M37X is Nissan.

When was the Infiniti M37X produced?

The available source data describes production as 1989–1992 (M30 coupé)2002–2019 (M sedan).

What class of car is the Infiniti M37X?

The Infiniti M37X is listed in the Executive car class.

What platform does the Infiniti M37X use?

The available source data lists the platform/chassis as Nissan FM platform.

Which markets or countries sold the Infiniti M37X?

The CarCareTool catalog currently associates the Infiniti M37X with CA, NL, US. Market availability and specifications can differ.

What came after the Infiniti M37X?

The available vehicle data lists Infiniti Q70 (renamed to) as a successor where applicable.

What replaced the Infiniti M37X?

The available vehicle data lists Infiniti Q70 (renamed to) as the successor where applicable.

How often should I check the tire pressure on the Infiniti M37X?

Check the tires regularly and before long trips, with the tires cold. Use the vehicle placard or owner’s manual as the source of the manufacturer’s recommended pressure.

Should I use the tire sidewall pressure for the Infiniti M37X?

No. The maximum pressure printed on the tire sidewall is not automatically the vehicle’s recommended setting. Use the vehicle placard or owner’s manual for the correct cold inflation pressure.

Does the recommended tire pressure change when the Infiniti M37X is fully loaded?

It can. Many vehicles specify a different cold pressure for heavier loads. Check the vehicle placard or owner’s manual for the exact loading condition.

Can the Infiniti M37X have different tire pressures front and rear?

Yes. Some vehicles specify different front and rear pressures because axle loads and vehicle configurations differ. Follow the exact vehicle recommendation where available.

Why can mileage differ from the published figure for the Infiniti M37X?

Published fuel economy is measured under a defined test method. Real-world mileage can vary with traffic, speed, temperature, tire pressure, payload, maintenance and driving style.

Data sources and verification are available in the page editor; exact specifications can vary by year, market, trim and engine.

Infiniti M37X images

Vehicle images are shown from the stored source image records when available.