I have a 2011 RT-S that had the throttle bodies replaced before my 2,000 mile trip, two weeks ago, after getting home I changed oil and filters, I sent an oil sample to OilScan for analysis and today received the results: "Analysis indicates an abnormal level of contamination is present. Fuel dilution is high 5.5%. Viscosity is low due to fuel dilution. Check the fuel system for leaks". Does anyone have an opinion?