2004 INFINITI G35 User Comment / Complaint

I own a 2004 infiniti g35, and repeated have had problems with the air entering the passenger cabin through the air ducts. intermittently the air smells "smokey" and at times the air is warm regardless of the temperature setting (when it is blowing air, with the air conditioning off). took it into the dealer a couple of times and they couldn't find the problem. during the same period, the car burned oil (with less than 20,000 miles). since then the dealer suggested switching to synthetic oil and the car no longer burns oil, and i very rarely notice smokey air in the cabin.