easier way to remove gas tank

[chmorro]

Just wondering if there is an easier way to remove the gas tank to gain access to the coolant filler neck. I'm getting ready to change my coolant, but am just wondering if I have to take the tank all the way off or can I just remove the rear tank bolt and front tank bolts and remove a fuel line in the rear and just move the tank back towards the seat a little, enough to gain access to the coolant neck? Help.
Also what kind of coolant are you all running. I've been running the LP3 stuff (orange) in my other bikes and have had no problems. Any feedback on this?Thanks in advance guys.