cambellju, I think you are right. I spent most of the day yesterday trying to track down some toluene. It is neither cheap nor easy to get hold of. I think I will stick to Millers octane plus. I have always had good results from that and you should be able to get it for around £3 a bottle. Which, is equal to £3 a tank. Even if I decided to be fruity :shock: and stuck 2 in per tank, it would still be cheaper than the toluene !