friction

Tried to give wife a ride yesterday but she slid all over the place on passenger seat. She was wearing jeans, seat has no friction. Maybe some grip tape would work. Anyone else encounter similar problem?

Just trying to get an idea for the different weights and oils that folks are using. I used the factory break in oil and the Castrol 4T 10W-40 mineral oil then switched to full synthetic Mobil 4T 10W/40. Engine seems to have a lot of power and "kick" to it (for it's size). Excuse my...