booked into indooropilly stealership for a diagnostic to "hopefully" find out what is wrong with the transmission, apparently holden wont look at any sort of service until they run diagnostics on it, which i think is fair, i had a mechanic look over it previously and he suggested a diagnostics and then service, holden quoted me 350-370 for a service, this is after 120 for diagnostics, does this seem excessive to you guys? 350 seems like a lot for what is essentially an oil and filter change, does anyone know of anywhere in brisbane which would do a comprable job for less if i find out all i do need is a service?