Pump prices have increased by four cents a litre as of 10am on Thursday.

The increase of four cents affects all grades of petrol and diesel at all Caltex stations.

A litre of Caltex's 92- and 95-octane petrol now costs $1.757 and $1.807 respectively.

Its 98-octane petrol retails for $1.900 a litre while diesel costs $1.283 a litre.

Other oil companies are expected to follow suit soon.

a1motor@sph.com.sg