I RECEIVED A LETTER LAST YEAR FROM TOYOTA EXPLAINING A GELLING PROBLEM AND TO WATCH OUT FOR BLUE SMOKE COMING FROM THE TAIL PIPE WHEN STARTING THE CAR. I WENT INTO SEARS FOR AN OIL CHANGE AND THEY INDICATED THAT IT LOOKED LIKE MOISTURE WAS GETTING IN THE OIL AND IT LOOKED SLUDGY. I TOOK THE CAR TO THE TOYOTA DEALERSHIP FOR THEM TO CHECK OUT THIS GELLING. THE LETTER INDICATED THAT TOYOTA WOULD PAY FOR THE PART/INSTALLATION. I GOT THE ESTIMATED BACK FROM TOYOTA AND THEY SAID I DID NOT HAVE ANY GELLING OR SLUDGE IN THE OIL/ENGINE, BUT THAT I DID HAVE ROTTED VALVE STEM SEALS AND HEAD GASKET LEAKS, AND OIL PAN LEAKS AND THATS WHY THERE WAS BLUE SMOKE. THE CAR IS BARELY 7 YEARS OLD AND I HAVE CHANGED THE OIL FAITHFULLY AT 3000 MILES. I DID NOT HAVE THE PROBLEM FIXED, BECAUSE I WANTED A SECOND OPINION FROM A MECHANIC THAT WAS REFERRED TO ME THAT IS TRUSTWORTHY. I PLAN ON TAKING THE CAR IN(AN APPT. WAS MADE FOR 2 DAYS AFTER I TOOK IT TO THE TOYOTA DEALERSHIP) AND I HAVE QUESTIONS IN HAND ABOUT HOW THIS COULD HAVE HAPPENED WHEN I HAVE NOT HAD 1 INDICATION THAT THE ENGINE IS GOING BAD/VALVES ARE LEAKING(I.E. THERE HAVE BEEN NO NOISES, LEAKING OF ANTIFREEZE OR OTHER FLUID WHEN I PARK MY CAR O/N OR FOR A FEW HOURS).