How does less than zero weight oil perform on the street?
Yes! We use <<0W Alisyn Synthetic in all of our stock, naturally aspirated engines. We also have many customers that street ride daily using <<0W Alisyn Synthetic exclusively.
The only adverse effect we have ever seen with the less than zero is a bit more valve train noise since the <<0 is so thin. This is usually only an issue if the engine has a slightly loose valve to begin with, or excessive miles.
If you are worried, try the 0W-20 Alisyn Synthetic Oil.