I have a '95 Civic with low mileage but the car is not garaged and is exposed to Northeast winters. The oil pan appears to be rusted at the bottom and I've been told it needs replacement. Is it recommended to buy from the dealer, a new pan and gasket? Or is it ok to save some money and get a good after market replacement pan and gasket? Also, is it tough to replace the pan on the 95 civic? I have been quoted a couple hours to do the job.