My timing belt needs to be replaced and my TSX is still under the powertrain warranty. My dealer contacted Acura and Acura Dispatched an Inspector to determine if the warranty would cover. Acura is asking for proof of oil changes. The first time maintenance was needed after I bought the car (6 months after purchase) I had the dealer do the maintenance. This was expensive. The next time it needed an oil change I had my father in law, who is a mechanic, do it to save money. The issue with this is I don't have receipts for this oil change. Is there anything I can do or say to Acura or am I S.O.L.?