I'm getting this second hand from my hubby and he's not here right now, but, I could have sworn they said it work without any type of conversion as long as the oil was clean.
Just to let you know, I use to work on cars with my dad and also at times repaired my own cars. I haven't done this in years because I don't have to, but, I'm not a complete dits when it comes to cars :)
Thats for diesel engines