Mick W. 
2008 Nissan Altima Sedan 2.5 S 4dr Sedan (2.5L 4cyl CVT)
Where do I start with complaints?
 The CVT transmission failed at 120,000 which I have been told is typical. It is difficult to rebuild so you have to spend 3 grand for a new refurbished one at a dealership. Second, the car eats oil at a record pace. 3 quarts in about 1,000 miles! The mechanic told me the rings are shot in cylinder 3. I saw that Nissan has acknowledged problems with the 2006 Nissan Altima with the 2.5 L engine. Well, the same engine in a car 2 years newer is having the same issues as noted above! I would never buy a Nissan with a 2.5 L engine again!