Hey guys what you think of this fuel colour?
Normally, with a full tank of quality fuel, you should be able to clearly see the bottom of the tank through the fuel pump opening. You should also see a slight color tinge based the type of fuel used as aussie fuel contains an added dye. Premium is dyed yellow while unleaded or e10 is dyed purple or bronze, however it’s more a tinge than a solid colour hence you’ll clearly see the tank bottom through the fuel (and any rust in the tank bottom of it’s made of metal).
But the best way to examine fuel quality is to pump some out into a 2 litre clear (coke) bottle, then let it sit for a few hours or over night where any stratification or phase separation will be evident (as will any sediment within the fuel). You shouldn’t see such issues unless the fuel is contaminated.
So assuming your picture is looking down into the fuel tank via the fuel pump opening (fuel pump removed), then I’d say something is definitely wrong with whatever fluid is in your tank. At a guess, I’d say you’ve had e10 sitting in a tank for a few months in a humid environment which causes phase separation and/or cloudiness (sometimes even going towards a milky colour). Whether the fuel was sitting in your tank and picked up moisture from the atmosphere over months or whether you pumped it in such a state from the bowser at the local should be apparent to you as you know how old the fuel you bought is...
I’ve had fuel contamination twice so i know it ain’t fun...
PS: was that pic before you cleaned the tank and lines, etc, or after cleaning the fuel system and filling up with “quality” fuel?