Opti2 and fuel filter darkness

[Dymaxion]

I recently rebuilt my motor with a new top end. I decided to break it in with opti2 and I also added a see-thru fuel filter at the same time. After about 25 miles here is what what the fuel filter looks like:

Is the dark layer at the bottom normal? Is this some type of opti2 sediment?

 

[bairdco]

it's probably dirt from the tank. i've never had Opti2 darken in any of my tanks, gascans or filters before. could also be from the rubber O-ring deteriorating inside the filter, even though it's new.

 

[2door]

Opti-2 is dark blue and looks darker than some oils in a transparent fuel filter. I wouldn't worry about it. I assume you mixed your fuel in a seperate container and not your bike's fuel tank.
Tom

 

[Dymaxion]

Thanks guys. I guess it could be dirt in the tank or maybe an o-ring is breaking down, but it appears "oily" and that tank was cleaned out.

All fuel is mixed in a gas can and well shaken before going into the bike.

Nothing seized up yet so I assume the slippery good stuff is getting through the filter to the engine, but it does look odd.

 

[maxsideburn]

looks just like my filter does using regular old synthetic 2-stroke oil

 

[DuctTapedGoat]

Could just be metal and paint bits from your tank. As time goes on, they get finer and finer.