A couple rubber seal questions

[Bmachine]

do they make something called rubber lubricant? not sure I want to Google that

 

[mark99]

well we got over window ones in!

 

[mark99]

can someone post a close up of that seal, right in front of the windshield, installed
It sort of looks like the 2 installations above are different
There is a thin slit and a wider grove, not 100% clear to me which way it goes