VEHICLE WAS DRIVEN FRIDAY 1/3/2020 IN A MIX OF DRIVING THAT INCLUDED THIRTY-FIVE MILES AT 70MPH+ AND SECONDARY TRIP OF TEN MILES IN TOWN THAT WAS A MIX OF TRAFFIC LIGHTS AND SLOW MOVING TRAFFIC. WHILE DRIVING VEHICLE IN SLOW MOVING TRAFFIC CABIN OF VEHICLE FILLED WITH GAS FUMES, FIRST FAINTLY, BUT BECAME WORSE UNTIL HEADACHE AND NAUSEA OCCURRED. VEHICLE WAS EVENTUALLY PARKED AND RESTED FOR TEN MINUTES TO CHECK OIL ALONG WITH INTERIOR AIR REFRESH. WHILE CHECKING OIL I OBSERVED THE OIL LEVEL .75 INCHES ABOVE THE FULL MARK ON THE DIP STICK WITH AN OVERALL STRONG ODOR OF FUEL. ENGINE OPERATED AS IT ALWAYS HAS, NO CHECK ENGINE LIGHT, AND NO EVIDENCE OF DRIVE ABILITY PROBLEMS. OIL LEVEL WAS ALSO OBSERVED TO BE .75 INCHES ABOVE FULL MARK 11/24/2019 AND SUBSEQUENT PHOTO WAS TAKEN. OIL WAS CHANGED 1/4/2020 AT 50,189 WITH OIL LIFE AT 50% WITH 5,714 MILES. PRIOR OIL CHANGE SERVICE OCCURRED AT 44,475 MILES ON 8/27/2019 AND THE OIL LEVEL WAS VERIFIED AT FULL LINE . FUEL SMELLS HAVE BEEN NOTICED IN THIS VEHICLE SINCE 300 MILES ON ODOMETER. VEHICLE WAS BROUGHT TO DEALER DECEMBER 12/2017 FOR FUEL SMELL COMPLAINT BUT NO RECTIFICATION MADE. 12/2018 THE DEALER PERFORMED TSB 18-114 WHICH INCLUDED HVAC MODULE REPLACEMENT, AND REPROGRAM TCU AND PCM, AND CHANGE OIL. AFTER THIS MUCH ANTICIPATED UPDATE VIRTUALLY NO CHANGE WAS OBSERVED AS OIL RISE AND FUEL SMELLS CONTINUED TO OCCUR. DURING THE WINTER OF 2018-2019 OIL RISE INCREASED .50" ABOVE FULL MARK AT 5000 MILE OIL, BUT