Nissan · 300 ZX · Rear

Nissan 300 ZX rear tyres: 32-35 psi / 2.2-2.4 bar

Drivetrain: front-wheel drive
Body: passenger car
PSI F / R: 32-35 / 32-35
Bar F / R: 2.2-2.4 / 2.2-2.4

psi rear

2.31 bar · 231 kPa at the rear axle

32-35 psi F · 32-35 psi R · 2.2-2.4 / 2.2-2.4 bar · 231/231 kPa

Loaded 300 ZX rears often need the sticker’s second column, not a copy of the front 32-35 psi figure. Under-inflation cooks the shoulders of a 300 ZX; over-inflation wears the centre rib and bangs every cat’s eye.

Nissan 300 ZX placard versus sidewall

The tyre-information placard on a Nissan 300 ZX sits on the driver’s door pillar (sometimes the fuel-filler flap). Catalogue figures here are a general band: 32-35 / 32-35 psi.

Estimated pressure by tyre size (215/50R17 and others)

Planning cold pressures for sizes often seen on a passenger car. This 300 ZX sample opens with 215/50R17, then 185/65R15 and 215/55R16.

Tyre size	Front PSI	Rear PSI	Front bar	Rear bar	Front kPa	Rear kPa	Note
215/50R17	—	35	—	2.41	—	241	Plus-size 17-inch
185/65R15	—	33	—	2.28	—	228	Small / older car
215/55R16	—	35	—	2.41	—	241	Slightly wider 16-inch
205/55R16	—	34	—	2.34	—	234	Typical mid-compact OEM
205/60R16	—	34	—	2.34	—	234	Taller 16-inch
245/40R18	—	36	—	2.48	—	248	Wide touring 18-inch
225/50R17	—	35	—	2.41	—	241	Touring 17-inch
225/45R17	—	35	—	2.41	—	241	Sport 17-inch

Pressure against load

Load moves the rear of a passenger car first. If the factory placard already has a “laden” column, use that instead of these sketches.

Condition	Front (est.)	Rear (est.)
Driver only	34 psi / 2.34 bar	34 psi / 2.34 bar
Full occupancy	35 psi / 2.41 bar	36 psi / 2.48 bar
Motorway + luggage	36 psi / 2.48 bar	37 psi / 2.55 bar

A family passenger car with a boot full of luggage should use the laden rear figure if Ford, VW or Mercedes printed one. Otherwise the modest steps in the load table are only a sketch for this 300 ZX.

How to set the 300 ZX

Measure before the school run, not after the M25.
Write LF / RF / RR / RL. Do not keep 300 ZX numbers in your head.
Add air in short bursts toward 34 psi (2.31 bar) front and 34 psi rear.
If one corner is 4 psi down, hunt for a nail before you blame the weather.
Log date, ambient temperature and the four readings.

PSI, bar and kPa

PSI-led conversions for the Nissan 300 ZX band (32-35 / 32-35).

PSI	Bar	kPa
30	2.07	207
32	2.21	221
33	2.28	228
33.5	2.31	231
35	2.41	241
36	2.48	248
38	2.62	262
40	2.76	276
44	3.03	303
50	3.45	345
60	4.14	414

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this 300 ZX.

Ambient	Gauge (front mid)	Bar	kPa	Note
−5 °C (hard frost)	31 psi	2.14 bar	214 kPa	Gauge reads low; do not overfill once warm
0 °C	32 psi	2.21 bar	221 kPa	Gauge reads low; do not overfill once warm
8 °C (UK winter morning)	33 psi	2.28 bar	228 kPa	Gauge reads low; do not overfill once warm
20 °C (set cold here)	34 psi	2.34 bar	234 kPa	Baseline
30 °C	36 psi	2.48 bar	248 kPa	Do not bleed a hot tyre
38 °C (heatwave tarmac)	37 psi	2.55 bar	255 kPa	Do not bleed a hot tyre

Nissan notes

A Qashqai and a Navara do not share a number. Vans and taxis may sit higher than a family hatch.

Spare and inflator kit

A matching full-size spare on the Nissan 300 ZX usually follows the higher axle (often the rear, near 32-35 psi). A space-saver is commonly 60 psi / 4.1 bar — read that tyre’s own sidewall. An inflator kit is not a spare; check the sealant date.

A cheap gauge and a monthly habit will do more for this 300 ZX than nitrogen upsells.

Other Nissan models

Cabstar Almera Datsun Elgrand 350Z Cherry Ariya 200 SX

Questions about this 300 ZX

What is that in bar and kPa for the 300 ZX?

Mid-points are about 2.31 bar (231 kPa) front and 2.31 bar (231 kPa) rear.

How often should I check a 300 ZX?

Monthly, before a long trip, and after a 10 °C weather swing. Include a full-size spare.

Is the sidewall number correct on a Nissan 300 ZX?

No. Sidewall PSI is a maximum. The 300 ZX placard is the operating target, near 32-35/32-35 psi.

Front versus rear on the Nissan 300 ZX?

This row is 32-35 F / 32-35 R. Even when they match, a laden rear can justify a higher number if the sticker prints one.

What tyre pressure should a Nissan 300 ZX use?

Catalogue reference is 32-35 psi front and 32-35 psi rear (2.2-2.4 / 2.2-2.4 bar), cold. Confirm on the door-pillar placard.

Handbook: placard · bar vs PSI · front vs rear · cold inflation