Supply your own oil - which will be cheaper to if you get it from Costco 
shame I'm not a costco member :-(
Me too. Don't think there is one anywhere near me!

Anyway, even if you go into your main stealer, they should be able to sell you the proper LL3 stuff at trade price, even if you are not a trade customer.

If they refuse, then try another stealer (including the Seat and Å koda ones

).
If all else fails, try Simon at Opie Oils, who is one of the forum sponsors - he can usually better Halfrauds and the like, and if you can plan ahead, he often has "specials", where he offers an extra discount, or throws in a litre top-up for free.
