i have a 98 Camry CSX i used to use normal unleded fuel i became short of money at one stage and started using E10 from either shell or caltex (as they are closest to me) started using E10 from a service and had to repllace fuel filter withing 2 months from using E10 fuel, i was not happy :( my mechanic told me that it was from using the E10 and not to use it again, my fuel filter was choc-a-block full of crap, ontop of the fact that it was costing me 2-3 times more money aswell instead of filling up once a week i was filling up 2-3 times and i had no change or driving distances, since that day i have never used E10 and dont plan on using it again, i will say though i do like using premium fuels the car runs smoother and the tanks lasts a good distance, so if no regular unleded then premium it is for me :)