REFLECTOR:Fuel Sediment

[John Dibble]

Often when I sample the fuel sump I see a few tiny particles in the 
gas.  Perhaps this is fiberglass dust which wouldn't be a surprise.  
However with 280 hours it seems that any dust from the building process 
should have been flushed out by now.  Does anyone else notice this?  I 
note in the Owner's Flight Manual it states that "....auto gas 
(especially the high aromatic content no-lead) should NEVER be used.  
They can dissolve the epoxy in the fuel tanks."  In the 70's when they 
began phasing out lead, aromatics were the main octance booster in auto 
gas.  Today MTBE is used.  However the 100 LL in the south now contains 
aromatics to boost octane.  Is this a problem?  Maybe Scott B can comment.

John