I've heard lots of good things about German Castrol and really want to try it. I have a 07 Acura TL, and my car specifies a 5W-20 oil. I'm wondering if it'd be appropriate for my car to use the German Castro since it only comes in 0W-30. Will there be any adverse effect for using it, such as reduced fuel economy, increased engine sludge, etc.?
Thanks!
Thanks!