Just wondering what people have experienced with different brand pump fuels. I've got an FG XR6T, 3 months old and just over 9,000K's, ZF auto. I've run Shell V Power in it since new, but the other day I was desperate and I put Caltex Vortex or what ever it's called. Since I did this the idle hasn't been quite right, just about stalled on me at the lights when pulling up, generally doesn't seem right. What have you lot experienced?