1999 MITSUBISHI ECLIPSE Complaints

WAS DRIVING VEHICLE AT 60MPH WHEN IT DOWNSHIFTED INTO ANOTHER GEAR ON ITS OWN, TO A LOWER SPEED. IT LOCKED IN ON LOWER SPEED. HAS TAKEN VEHICLE TO DEALER 4 TIMES FOR PROBLEM. THIS HAPPENED TWICE (2) TO THIS NEW VEHICLE. HAPPENED TO ANOTHER VEHICLE PREVIOUSLY. *AK

I HAD CHANGED THE OIL IN MY MITSUBISHI ON 12/20/98 AND ON 1/7/99 WHILE DRIVING, WITH CRUISE CONTROL ON, MY CAR SOUNDED A KNOCK AND COMPLETELY STOPPED. I HAD THE CAR TOWED TO FREEHOLD MITSUBISHI, AND THE SERVICE MANAGER HAS TOLD ME THAT HE VISUALLY DETECTED THAT I HAD USED AN OIL FILTER THAT WAS FOR THE TURBO MODEL OF THE ECLIPSE. HE TOLD ME THAT BECAUSE I HAD USED THE WRONG FILTER WHICH HAS THE WRONG THREADING FOR MY CAR. MITSUBISHI IS NOT COVERING THIS UNDER WARRANTY. I HAVE HAD A MECHANIC LOOK AT THE TWO TYPES OF FILTERS FOR THIS VEHICLE AND THERE DOES NOT SHOW ANY DIFFERENCE IN THE THREADING ON EITHER OF THEM. THE VEHICLE IS ONLY 2 MONTHS OLD AND I HAVE NOT BEEN GIVEN ANY PROOF FROM MITSUBISHI THAT USING AN OIL FILTER, MADE FOR THE CAR WITH THE SAME SPECIFICATIONS FOR TURBO AND NON-TURBO, COULD POSSIBLY BE THE CAUSE OF BREAKING A CONNECTING ROD. WHAT IS MY WARRANTY FOR? THERE COULD BE SOMETHING WRONG WITH THE ENGINE. I HAVE PAID IN FULL FOR THIS CAR. I CAN NOT AFFORD REPAIRS. THEY HAVE GOTTEN TH