Yeh, agree, more of an irritation really and mine doesn't always do it, especially with 98 RON. I guess if left too long it won't do the engine much good so I'll be talking to Mike again. Last time we talked he asked me to keep putting basic unleaded in, then bring it to him for a test drive. If I put Tesco's in he'll have no doubts!
Be good to hear how you get on.
Cheers
