I just switched my 2004 2.0 Golf to Pennzoil euro 0w40, from the factory spec 5w40. I noticed an immediate difference in the cold starts here in Ontario. Does anyone else have experience with this oil? I don't see it mentioned as much, or available at many stores around here. A small anecdote, this used to be my brother's car. The dealer used to put 5w30 in it, and it would use almost a quart of oil per change (5k). After listening to a friend who is a VW mechanic here, I've stuck to 5w40 and it uses no oil (noticeably on the dipstick), per change.