Quality of 91 gasohol in Thailand

Hi everybody,

Does anybody know anything about the quality of 91 gasohol in Thailand? Some people talk about bad quality and pollution in the gas. Do you know anything about that?

I have never experienced any problems with fuel types in Thailand but I only buy at busy stations of major brands.

As a side note gasohol 91 is slowly being phased out in favor of gasohol 95 which currently cost less than half a baht more than 91.

Ah, I wasn't aware that 91 was being phased out.

When 91 was temporarily unavailable at my local PTT, in the past, I've got 95.
it might be my imagination, but my Honda City appeared to run a bit smoother, and was marginally more zippy, with 95