Hi Guys,Just need some tips on engine oil. I was at BM Autoservice today, the service attendant told me that E60 should be using 0W40, how true is it?By the way, I have inherited about 24 X 4 Ltr of fully synthetic engine oil ELF Excellium SM 10W50. Was planning to use it in my M54 E60 engine, and advice....? and experience ....or should i?cheer bro.cooperman:top: