simon k wrote:
Point to note on the Commodore, if it's an auto, make sure it has a transmission cooler, otherwise the transmission will overheat and spit its oil out and you'll be stuffed. Even with an empty tandem trailer they'll do that.
I agree if it is V6 Commodore. I've not had any dramas like that with my V8 Commodore and I have towed my car trailer from FNQ to SEQ and NSW a number of times.
The hire trailers from the servos tend to be very heavy. Whatever you decide to tow it with, make sure the tow bar is up to spec for total weight of trailer and load.