I switched over my stock motor oil about 3 months ago to Royal Purple synthetic. The car currently has almost 5000 miles on it. The problem is that when I went to check my oil I had to another 1 3/4 quarts of oil!!! The guy at the shop that I bought the oil from told me this was normal due to synthetic being thinner and slipping through the seals because my motor isnt fully broken in. Is he right? There is no visible leaks and all my car has is a CAI/Tune. Any info would be helpful!!!
