I own a 1997 Daewoo Leganza and have two problems. The first involves the car having problems turning over once I fill up with fuel (e10). The car is hesitant but fine once it goes. The second is a rotten egg smell that comes into the cabin at least once a week and is in the cabin for about 15-30 seconds. A mechanic has suggested an air filter for the second problem, what do you think?
It is common for cars running E10 fuel to be a little more difficult to start than they are on regular unleaded. Try unleaded and see if the problem persists. A rotten egg smell is usually a sign of a problem with the catalytic converter.