Talk about over charging the customer. Something that should be a courtesy (topping up the DEF) and they charge $10.00 to fill it, and there is no way in hell $27.00 for the DEF fluid itself. Never will I bring my truck back there again, the hourly rate they charge is ridiculous not to mention they said they would have it done by a certain time and it wasn't and I couldn't pick my truck up till the next day. What should have taken a couple hours took all day and I paid their hourly rate for it.