All I'll say is GT85 smells nice
WD40 displaces water...
What you really want is Brunox Turbo Spray with Turbolene in it, it says Turbo on the can and has turbo in the can, what more do you need!!!
Actually the Brunox wee's from a great height on GT & WD
It has much more product in the can (97% of the contents is the product,only 3% propellant) & it has no silicone in it unlike GT, much better penetration than WD & it's been used in our workshop for a year now on everything but chains & forks (Brunox do a chain lube too & a fork lube which is recommended by Rockshox)
It's bloody good stuff!