Dutton · Sierra Series 3 · Cold

Cold tyre pressure for a Dutton Sierra Series 3

Drivetrain: rear-wheel drive
Body: pickup / double-cab
PSI F / R: 32-35 / 32-35
Bar F / R: 2.2-2.4 / 2.2-2.4

psi

34 / 34

Catalogue mid-points, front / rear · 2.2-2.4 / 2.2-2.4 bar

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

UK winter mornings will show a lower gauge on this Sierra Series 3 without a puncture. Set 34/34 psi at ~20 °C equivalent, not after a motorway blast. A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed Dutton tyre. Commercial and load-biased bodies like this pickup / double-cab often need a higher rear; LT or C-type sizes such as 285/70R17 are not filled like a Fiesta.

Temperature and a cold gauge

Roughly 1 psi per 5–6 °C. The table uses 34 psi as a 20 °C baseline for this Sierra Series 3.

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

How to set the Sierra Series 3

Park the Dutton Sierra Series 3 for at least three hours (cold tyres).
Use a calibrated gauge, not the only meter on a forecourt hose.
Set the placard for that axle — about 32-35 psi / 2.2-2.4 bar front and 32-35 psi / 2.2-2.4 bar rear on this catalogue row.
Recheck all four. A 2 psi miss on a rear-wheel drive Sierra Series 3 is enough to feel a pull.
Refit valve caps and reset TPMS if the handbook asks for a relearn.

Dutton Sierra Series 3 placard versus sidewall

The tyre-information placard on a Dutton Sierra Series 3 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 (265/70R17 and others)

265/70R17 is the first planning size here. 285/70R17 is usually the plus-size or LT step. Keep load index at or above original equipment.

Tyre size	Front PSI	Rear PSI	Front bar	Rear bar	Front kPa	Rear kPa	Note
265/70R17	37	39	2.55	2.69	255	269	Typical 17-inch load tyre
235/75R15	35	37	2.41	2.55	241	255	Older compact truck
285/70R17	38	41	2.62	2.83	262	283	Wide all-terrain
275/65R18	37	40	2.55	2.76	255	276	Plus-size 18-inch
245/70R16	36	38	2.48	2.62	248	262	Common 16-inch all-terrain
LT245/75R16	42	46	2.9	3.17	290	317	LT-metric, higher load
LT265/70R17	42	48	2.9	3.31	290	331	LT 17-inch
255/65R17	37	39	2.55	2.69	255	269	Highway 17-inch

PSI, bar and kPa

PSI-led conversions for the Dutton Sierra Series 3 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

Load notes

Load moves the rear of a pickup / double-cab 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	34 psi / 2.34 bar	35 psi / 2.41 bar
Payload / towing	35 psi / 2.41 bar	37 psi / 2.55 bar

Dutton notes

No special Dutton exception: the Sierra Series 3 uses the door-pillar placard. Size estimates on this page only help if you have left the original load index behind.

Spare and inflator kit

A matching full-size spare on the Dutton Sierra Series 3 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 Sierra Series 3 than nitrogen upsells.

Other Dutton models

B Plus Rico Shuttle Sierra Series 1 Sierra Drop Head Phaeton Series 4 B Type Rico Legerra

Questions about this Sierra Series 3

How often should I check a Sierra Series 3?

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

What PSI if I plus-size toward 285/70R17?

Keep load index at or above OEM. Low-profile sizes usually stay at or slightly above the placard. Use 265/70R17, 235/75R15 and 285/70R17 as a planning band.

Front versus rear on the Dutton Sierra Series 3?

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 is that in bar and kPa for the Sierra Series 3?

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

Should I bleed pressure after a motorway run?

No. Heat raises the gauge. Set cold only. Bleeding a hot tyre leaves it low the next morning.

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