Looking for some input here. I have a 2003 touring model. I drive alot, and change the oil regularly. The dealer does all the maintenance. At about 29K miles I noticed that I was beginning to use better than 2 quarts of oil in about 4 to 5 thousand miles. The dealer did their measurements, and at 2 thousand miles, they said that I was using about 1 quart or less over 2 thousand miles. The dealer told me that their engineers said that this was normal usage. The problem is that there is no signs of where the oil is going.

I don't know that much about engines. Is this a normal thing. Is there a way to get a copy of these specifications that Nissan is quoting from? What do you guys think?