I used to work for a caltex servo where they had an onsite garage which I did some work away from the console but to pay a mechanic that was there a full weeks wage you have to be doing alot of services or repair work, There is a caltex up here at North Ipswich that still does mechanical but there is no money in it now when your mum, dad or grandparents can go to the local kmart tyre and auto and have a day of shopping.