[vnabhi]

Originally Posted by n_aditya

Checked with many bunks and I was told that Xtrapremium from IOC is 91 octane. Its is unleaded fuel with additives.

Check this out for more info : http://www.iocl.com/Products/GasolineSpecifications.pdf

I think Xtrapremium is 93 Octane, unleaded is 91 (BS3). The 88 Octane BS2 applies to non-metro cities, I am told, by someone in this forum