I recently bought a 89 420SEL with 105K. Car runs great and looks great. I had the chain, rails and tensioner replaced for preventive maintenance and peace of mind.
However, previous owner had let the car set up in his garage for about 5 months without driving it(only cranking it periodically). I just took it on a long trip (1000 miles) and the car used 3 quarts of oil. This is excessive-where should I start? Could it be due to the car not being used for those 5 months? Any advice appreciated. Thanks.
1989 420 SEL