Talk:RR3 Wiki:Tips and FAQ for Asterion's Charge/@comment-26947926-20151007154113

4.1 is 4 laps around Monza Junior track, which takes almost half the green service bars. I spent 1 GC on Mechanic for 4.1, and that got me through the entire stage (4.5 was run unserviced, but the car was still good enough to win (only all $upgrades).