Muscat: M91, a new type of petrol, which will have an octane level between the existing M90 and M95, will be launched in November, the Ministry of Oil and Gas said. “The M91 will not be available in market now. Due to technical reasons, the new fuel will be introduced in the Oman market only in November,” the Ministry of Oil and Gas tweeted on his official Twitter handle. The ministry had announced earlier that the M91 fuel will replace the existing M90 and will be available in the market in early August. In March, the Times of Oman had first reported that Orpic is considering introducing a new grade of Octane petrol in the market, which will fall between the regular and super grades. Talking to the Times of Oman on Sunday, Rajeev KR, the senior official at Siraj Al Jazeera Projects, a fuel sales company in Oman, had said that they are not expecting the introduction of M91 this month as they have not got any instructions from the ministry about the same. On Sunday, the ministry had announced new fuel prices for August. The cost of super grade petrol this month will be 166 baisas per litre, 156 baisas for regular grade petrol and 178 baisas for diesel per litre.