2002 Toyota RAV4

I HAVE A 2002 TOYOTA RAV 4. I HAVE TAKEN MY CAR TO THE DEALER FOR THE CHANGES OF OIL AND FILTER. TWICE THEY SUGGESTED A WYNNS SYSTEM ENGINE CLEANING WHICH WE PAID FOR. THE LAST ONE WAS DONE ON APRIL 2005. LAST OCTOBER 7, 2005 I WAS DRIVING MY CAR ON THE EXPRESSWAY AND ALL OF A SUDDEN THE OIL LIGHT LIT UP AND THE CAR STOPPED. THE CAR WAS TOWED FROM THE HIGHWAY TO OUR HOUSE AND THE NEXT DAY WAS TOWED TO THE DEALER ADRIEL TOYOTA IN RIO GRANDE, PUERTO RICO. ABOUT TWO HOURS LATER THEY CALLED ME AND STATED THAT THE MOTOR STALLED AND THE WARRANTY WAS NOT GOING TO PAY SINCE I HAD NOT TAKEN THE CAR TO THEM FOR THE LAST OIL CHANGE. I REMINDED THEM THAT JUST NINE MONTHS EARLIER A WYNNS MOTOR ENGINE CLEANING HAD BE DONE BY THEM AND THAT IT WAS IMPOSSIBLE FOR THE MOTOR OF THE CAR TO HAVE SLUDGE IF THEY HAD DONE THE JOB CORRECTLY. THE TOYOTA COMPANY OF PUERTO RICO CALLED TO TELL ME THE SAME THING. I MADE A COMPLAINT AT THE CONSUMERS AFFAIRS IN PUERTO , I AM WAITING FOR A DECISION. TODAY I SHOWED THE PICTURES TO AN AUTOMOTIVE EXPERT WHO STATES THAT THE MOTOR HAVE NOT HAD ANY OIL CHANGES AND THE WORST WAS THAT THERE WAS NO WAY THAT THE ENGINE HAD BE CLEANED. THE DEALERS STATES THAT THEY HAVE NOT HAD ANY MOTOR SLUDGING ON ANY RAV 4 IN PUERTO RICO BUT CONSUMER REPORT STATES THAT TOYOTA HAS THIS PROBLEM MOST COMMONLY WITH CAMRY'S . TODAY I FOUND OUT THAT RAV 4 HAVE THE SAME ENGINE CAMRY'S HAVE. AM I SUPPOSED TO BE PUNISHED FOR WHATEVER PROBLEM TOYOTAS ENGINES HAVE?