Tyre removal/fitting lubricant?

[Decoke Dave]

   Always fit my own bike tyres to prevent others butchering the rims, should I use genuine purpose made tyre lubricant?   Used washing up liquid in the past but been told it has salt in it which isn’t good for the alloy rims?

[celticbiker]

Bought a tyre fitting machine a few years ago now as I was fed up with paying to have it done.
I've heard the same as you so have always used a dedicated lubricant for the job. I prefer the liquid to the grease though.

[midden]

car shampoo or muckoff 

[Decoke Dave]

Bought a tyre fitting machine a few years ago now as I was fed up with paying to have it done.
I've heard the same as you so have always used a dedicated lubricant for the job. I prefer the liquid to the grease though.

I will use a liquid as well, what product do you use?