This is what happened when you don't know anything and overdosed by you**iana logic.
There is difference between E10 and MS (Petrol).
This E10 will make Patrol Pump owners life easier in Pakistan since water mix well with E10 blend
on the other hand if you add water to regular Patrol it goes on the bottom
. We call E10 "water down" Patrol here. Customers prefer not to buy this because this blend reduces the mileage/performance, it is bad for rubber plastic parts, less shelf life and it burns faster and hot. If the price of E10 is not 15% less then regular patrol price then you are wasting your money. Stay away from E10. This blend is only beneficial to Govt and Patrol pump owners.
Hardly any pump is offering E10, except some pumps of PSO in Karachi & Lahore, no-one sales E-10.
Even if you take this the base price is R 59.14 and tax (excluding customs duty) is 37.31 which is
63% of the base price. Now add customs duty on MOGAS it will more than 68% of the base price.