I wound out my 2006 roadster last night and when i let off the gas I noticed blue smoke comming from exaust, It does not do it during normal conditions, only when I wind it up ,,,can drive highway speeds all day with no problem..Do anyone think it may be residual oil in the muffler only cpmming out after high volume of air? It has me worried ,,dosnt seem to be using oil or smoke other than a high speed wind..