i went to mr.lube the other day and had a oil change.i asked for 0w-30 castrol and i watched the lube tech pour it in my h2.i was in disbelief when i saw the green oil pouring out.i asked how many more bottles they had left and it was 12.i got them for 9.99 a litre,maybe not bad for a lube shop.in my local walmart and ct stores it is all m07,this stuff was coded M050106.