Chevrolet Repair: Sea foam, oxygen sensor, tank fuel

Question
I have a 2008 Impala I recently had sugar put  in the tank of my car. The gas tank, fuel pump, and a complete tune up was done. I'm having some mis fire and took it back the lifters still had build up especially 6 and 2 they were all cleaned the car runs great. I was told to use sea foam to clean out any debris that may be left by the mechanic. When I went to purchase it the gent. At the store said it would tear up my car because it's a new model.  Is this a good product to use?

Answer
HI DEBRA, WELL I WILL TRY TO ANSWER YOUR QUESTION THE BEST I CAN..I HAVE HEARD VERY GOOD THINGS ABOUT SEA FOAM FROM PEOPLE AND FRIENDS. I HAVE NEVER HEARD ANY BAD THINGS ABOUT IT..THIS WILL NOT HURT YOUR CAR BECAUSE THEY SAY IT IS CONVERTOR SAFE...[[MAKE SURE IF YOU DECIDE TO USE THIS PRODUCT IT SAYS CONVERTOR AND OXYGEN SENSOR SAFE]] NOW FOR MY POINT OF VIEW, MY THOUGHTS ARE WHY USE IT AT ALL ??? IF YOUR CAR RUNS GOOD AND YOU CHANGE THE OIL OFTEN AND DRIVE IT EVERY DAY,WHY BOTHER TO WASTE YOUR MONEY ?? YOU SAY YOUR ENGINE IS MISSING FROM TIME TO TIME AND THE LIFTERS STILL HAVE TO BE BUILD UP ??? THE LIFTERS ARE WHAT MOVE THE VALVES UP AND DOWN BY MEANS OF THE PUSH RODS WHICH ARE ALL INTERNAL..THIS COULD NOT OF BEEN HARMED BY SUGAR IN YOUR TANK..I THINK WHAT YOU ARE TRYING TO SAY IS THE FUEL INJECTORS ARE DIRTY FROM THE SUGAR. THIS WOULD CERTAINLY CAUSE A MISFIRE..WOULD SEA FOAM CLEAN THIS ??? GOOD QUESTION. ALL YOU COULD DO IS TRY IT AND SEE. [ DO YOU FEEL LUCKY] IF THIS DOES NOT WORK YOU COULD GET THE INJECTORS CLEANED OUT WITH A INJECTOR CLEANING SERVICE.[NOT WHAT YOU PUT IN YOUR TANK TO CLEAN OUT THE INJECTORS, THAT WONT WORK. IF THE CLEANING DOES NOT CORRECT THIS ISSUE YOU WILL NEED TO REPLACE 1 OR MORE INJECTORS..IT DOES NOT TAKE MUCH TO HARM THE INJECTOR SPRAY PATTERN..SO SUGAR WILL NOT HARM ANY INTERNAL PART OF YOUR ENGINE..ONE LAST THING,YOU SAY THEY CLEANED THE FUEL TANK WHICH IS GOOD. DID THEY CLEAN THE FUEL PUMP AND STRAINER OR REPLACE THEM?
WHEN THIS HAPPENS WE ALWAYS REPLACE THE FUEL PUMP AND STRAINER. SUGAR WILL HARM THE FUEL PUMP..
I HOPE THIS HELPS YOU,,,TOM..