Pump prices in Singapore saw a fourth consecutive day of adjustments on Thursday (March 19) as Sinopec, followed by SPC, raised its respective posted price for diesel by 7 cents.This mirrored the moves of Shell, Esso and Caltex, which also raised diesel prices by 7 cents each on Wednesday.But all five companies held prices for petrol  steady — for a second consecutive day.Following the latest round of adjustments, the price for diesel now ranges from $3.56 at SPC, to $3.63 at Caltex, Esso and Shell. The posted price for diesel at Sinopec holds the middle ground at $3.62.Cynergy raised pump prices on WednesdayUnion Gas Holdings-owned Cynergy raised prices for its 95- and 98-octane petrol by 5 cents a litre on Wednesday, while holding its posted price for diesel unchanged. Read more