Dear Foristi, For a few days I have been the proud owner of a Cadillac DeVille built in 1966. The vehicle only has a mileage of 33,000 miles. Whether the car has driven only little during these 48 years each year or whether there have been years in which it was not moved at all, I cannot say. Can it not be that with this low mileage in the tank, in the transmission oil tank and in the engine oil tank, residues have formed, which are now being flooded when the vehicle is running Is there therefore a risk that such flooded residues will damage the automatic transmission and the engine? Is it not advisable, therefore, to completely expand the engine oil tank and transmission oil tank and to check, if necessary, to clean it? Or is it enough for a simple oil change? WIe can I inspect the tank for any residue? Is there something like a mini camera that can be looked up? Does anyone have experience with a vintage car with such low mileage? maybe just coughing the fleas? Thank you for your efforts