What was found
FLT 1394, NAS-FLL. DURING TAKEOFF AT APPROX 100KTS THE COCKPIT AND FWD CABIN FILLED WITH A STRONG EXHAUST/FUEL SMELL. THE ODOR DISSIPATED GRADUALLY AND WAS INPERCEPTABLE CLIMBING THROUGH 10000FT. THERE WAS NO VISABLE SMOKE OR MIST ASSOCIATED WITH THE ODOR; DURING T/S FOUND EXCESSIVE OIL IN APU COMPT. CLEANED APU INLET, COMPONENTS AND COMPT AS REQUIRED. PERFORMED HIGH POWER RUN WITH PACKS RUNNING REF GE LMM 72-00-00. NO FUMES / ODOR NOTED. A/C OK TO CONT.