I need some 8mm ID hose to go from my thermostat to my expansion tank but the smallest radiator hose I've been able to find is 12.7mm. Would it be ok to use flexible fuel hose instead?

Cheers,

Pete

Can't see any reason why not, probably exceeds all the temp/pressure issues by a factor of 10

I've used it with no probelms for the very same thing!

I'd suspect thats a reasonable assumption, but just for giggles you might check the websites of the suppliers, like Gates rubber, they should have acceptable temp ranges.

Will be fine mate. Thats what im running on my calibra.