Quote:
Originally Posted by IDZRVIT
If you have to put a quart in every 1000 miles or so, don't worry about it.
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If anyone has to put a quart in every 1k miles, they should definitely worry about it, as the engine would be dry within the recommended oil service interval. That kind of consumption is also in the "no good" oil consumption range indicated by Nissan's own oil consumption chart for the vq37.
Oil consumption will vary due to driving habits, but excessive consumption of this type of due to some type of engine component failure. Some people say toasted rings, others say valve seals- as far as I know, there has not been a 100% accepted cause for these particular problems in the 09 engines covered in the tsb.
The VQ37 can/will consume oil to the tune of .5-1.5 quarts every 5k miles. Driving style and oil type will make the oil consumption vary. However, you should not have to add oil to the engine to keep it from going bone dry within the oil service interval.
As far as how many people have had problems, I'd wager it's an overall very small amount (5% or less), but the amount of owners who have experienced issues is not necessarily indicative of the amount of engines that actually have the oil consumption problem to some degree. Many (most?) owners will not pay attention to the vehicle enough to notice oil consumption without major indication or engine failure, imo.