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Old 03-13-2007 | 11:59 AM
  #4  
bruce88123
 
Joined: Nov 2004
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From: Memphis, TN
Default RE: darkend fuel residue

Omega fuel contains Castor oil. About 30% of the total oil content is castor and it tends to leave a darker residue than pure synthetic blends. Depending on how dark it is, all may be just fine.