Penske Fueler Washer position

I know this page is specifically for Diesel Techs, but i got a job offer at Penske for the fueler Washer position, they say i could later become a Diesel Tech. The starting pay would be $24 an hr, which is the most paying rate i have ever made compared to $17hr starting pay. Only thing that has me very hesitant is the schedule, Saturday-Wednesday from 6am-2:30pm. No overtime. I would have to give up weekends. Is this job worth it, has anyone worked there could give me information on what the job is? How many trucks they wash per day. I was a fueler for AB distributions, and it was only 2 trucks per day and fueling them.