I have owned many cars and hot rods...I have always used Marvel Mystery Oil in the gas tank now and then to keep the carb, valves,etc,,free of deposits..I have no physical evidence that this helped, but cars always seemed to run smooth..Since my 2004 Crossfire Limited is newest car I ever owned (58yrs) I was wondering if I should use this product in my Crossfire as well? The car is just shy of 40,000 miles and runs like a top..I live in NY and in my county(Dutchess) the gas is required to have 10% ethanol..I just want to keep the injectors etc clean..What are your feelings on this? Thanks for listening....Wayne