Can I use 91 octane in peugeot 3008 model 2012?

Since its a Peugeot, also since its mentioned in the manual. Its better to use 95 octane or above when you can. But it will not cause any/sudden damage if you use 91 octane from here and there. Only Main noticeable difference it would make is reduction in performance thus fuel efficiency considering your driving pattern's.

Odds are the 98 octane requirement is a European octane number which is different than how octane is calculated in the US. 91 octane should work in the US. Is this a 98 RON octane requirement?

I’m using this car in Bahrain in manual it’s required 95 or 98

When you buy gas check to see how the octane is rated. There may be information on the pump indicating the method used to determine octane.

It’s used car Previous owner was using 95 octane But I’m thinking to put 91 because it’s cheaper

The problem here is peugeot’s spare parts it’s not available and expensive when they order for you like this I want to be sure about fuel