Popped into my local Europarts in Crawley today to get some suspension bushes for my Golf (it's what I ride when it's wet and cold). They had 5L of 5/40 synthetic oil for £10.95. The manager was genuine when he said it was a 'loss leader'. They don't buy them in for that. Now I know it's 23.41 and Eurpoarts shuts at 6 but I've been out for a curry. The point is they have a deal every Fri so keep your eyes peeled