paul
call Harold from performancelub.com. I will PM you details, his place is in Fairfield or similar so not far from you.
Here is his website and products/prices.
http://www.performancelub.com/index.htm
He only has good oils, the Castol is both German Castol (0w30) and from the US for the 40wt. I always get redline from him. The M1 is from the US also, all are top shelf.
Everyone should be buying from him anyway cos its shit loads cheaper for the good stuff.
He runs the business fror his home and therefore is always there!
Cheers