This was the seventh increase in a row since mid-April of the popular gasoline, which accounts for 70 percent of total fuel consumption in the country.
RON 92 biofuel also saw its price rising by 0.61 percent to VND32,370 per liter, having increased by 43.5 percent this year.
Diesel increased by 3.4 percent Tuesday.
Vietnam’s fuel stabilization fund, set up to contain price surges, is currently negative.
The government has cut the environmental tax on fuel by half to VND2,000 from April for the rest of the year, and is considering cutting it by another VND1,000.