Prices for the RON95 and RON97 petrol will go down by five cents per litre respectively, taking effect tomorrow, petrol dealers said.

RON97 will cost RM2.05 a litre while RON95 will cost RM1.70 at the pump come midnight, while diesel prices will remain unchanged at RM1.70 a litre.

Diesel prices at the pump went up by 10 sen a litre last month.

The government determines the prices of fuel through a managed float system.

It takes into account several factors, including the global price of crude oil and the country's currency strength in the previous month.

PKR's Pandan MP Rafizi Ramli, however, argues that fuel pump prices should be lower and urges the government to reveal daily prices to ensure there are no hidden taxes.

Brent crude was at a low US$36 per barrel in March but climbed up to about US$47 this week.

The ringgit as of today is at RM4.07 to a US dollar.