My toyota company has said that my oil tank which somehow got a crack which led to oil being leaked out to the point where the truck shuddered to a stop. I brought it into my dealership. I have a a warranty until 2010. They are saying that the motor is messed up and the oil leaked onto the motor which caused the problem which totals up to 5500 dollars in damage and that it has to be replaced. One year ago, I took the truck to a regular garage just to get a simple oil change. They did the oil change. Toyota is now saying that Tread quarter(the garage) put a faulty oil filter even though it was not faulty and the truck has been running fine until last week. They are saying because Tread is at fault that the warranty for my motor is going to be voided. I'm trying to fight this and say Tread didn't have anything to do with this and that the truck's oil pan and motor are just damage from regular wear and tear. I feel this dealership is just trying to get as much money as possible by voiding my warranty. What should I do?
Any suggestions would be wonderful, please.