How long does it keep versus E5 currently used in all UK pump gasoline ?
I cant the answer but AA and RAC and plenty of others are saying it will be much harder to start a car which has been stood with E10 petrol.
E10 shouldnt be used in anything pre 2002 apparently so thats 600,000 cars still on the road.
And cars on E10 may will produce 6% less pollution but they will do 3% less mpg so everybody will spend more on their petrol each week.