Alfa Romeo 166

Alfa Romeo1661999Tyre Pressures235/40R18

Tyre Pressures: Standard & LadenWheel Nut Torque SettingPCDFront & Rear OffsetCentre BoreEngine Oil Specifications

Standard Load Tyre Pressures

Front: 38 PSI (2.6 bar / 260 kPa) - Rear: 38 PSI (2.6 bar / 260 kPa)

Convert front 38 PSI → · Convert rear 38 PSI →

More about standard load tyre pressures

Fully Laden Pressures

Front: 39 PSI (2.7 bar / 270 kPa) - Rear: 39 PSI (2.7 bar / 270 kPa)

Convert front 39 PSI → · Convert rear 39 PSI →

More about fully laden pressures

Tyre Size Converter - Wheel View

Original tyre
Comparison tyre

Side view comparison

Diameter check only

Tread view comparison

Original tyre

Comparison tyre

View recommended tyre size conversions

Diameter matches only: confirm approved sizes, wheel width, clearance, load and speed ratings before fitting. Vehicle-specific limits may be stricter.

Results compare nominal sizes. They do not confirm vehicle or wheel fitment.

Wheel Nut Torque Setting

93 Nm

12345
5-bolt tightening pattern
Follow the numbered order with a torque wrench and the vehicle manufacturer’s procedure.

More about wheel torque

Wheel & Technical Information

PCD
5x108
Centre bore
58.1
Front offset
41
Rear offset
41

More about wheel fitment

Engine Oil Information

Engine / Variant
3.2 V6 24V
JTD 20V Multijet
Oil specification
3.2 V6 24V: SAE 10W-60, FIAT 9.55535-H3
JTD 20V Multijet: SAE 5W-40, FIAT 9.55535-M2
Oil capacity
3.2 V6 24V: 5.9 L including filter
JTD 20V Multijet: 5.0 L including filter

More about engine oil