I have a rush evo with a t-15 engine in it drives fine except it stalls when there is still a bit of fuel in the fuel tank there is about 1.5mm of fuel in the tank when it stalls is this normal?

I am not sure if this is a common problem for this vehicle. I do not own one, but I do know that I have several nitro vehicles and they will all run to the last drop of fuel in the tank even at idle.

I own numerous nitro vehicles and all of them get just about every last drop of fuel before stopping. I am guessing yours is still stock and has the fuel tank with the primer? I recommend you get the race tank with out the primer and if it is not causing problems now it will in the future.

could it possibly be it is too lean ?

oh and it is the fuel tank with the primer if that helps.

Primers are a problem in general. If there is any leak in the tank at all, the engine will run leaner than normal as it empties. Early Rustler tanks were notorious for being leaky. The GT tank is a good replacement, if you can get it to fit on your Rush chassis.

I think it's running lean as well. I had the problem many times.