I have a VMAX 150 HPDI. I was running clean fuel with Stabil thorugh the motor for winterization. I was just runnin on idle with the cowl off. I noticed that the fuel level in the clear low pressure filter did not stay full to the top. It slowly dopped it's level. It never stalled, just lowered it's level bout an inch from the top. Is this normal?

I just replaced both fuel pumps and replaced the VST filter earlier in the year.

I just wanted to know if this is normal -- If not I might have to receck my fuel pump installation .

Thanks in advance,

Todd