water??

the gap was from the angle of the pic shot.
but not sure about the cylinder ware pics
morejugpics004.jpg

morejugpics003.jpg

morejugpics002.jpg
 
Gasoline, no matter the octane rating, should not contain enough water to emulsify into your lube oil.

Blaster's, and expecially ones with worked over heads, specifiy 93 PON fuel (or "high test" as most here in the states call it). If you're not already using it, you should switch up and begin using the higher grade fuel.