Something i forgot to mention on the no clutch thread is the curious colour of my clutch fluid. When my clutch hydraulic pressure failed this time i lifted the lid of the resevoir to see what fluid i had (the window showed full) and saw that the tiny amount i had left was a metalic grey colour with small flecks of an aluminium colour in it - pretty though it is, i am sure it should not be like that. Fluid is dot 5.1 and is the usual weak yellow colour when it was flushed through. Any ideas? 
