Suspected oil consumption? :/
 

Checked my oil level last night and it looks like I'm about 2qts low after 2500 miles.... what I'm gonna do today is change the oil and monitor the oil level every week and this time I'll drive more sensibly. Now I do drive the car pretty hard. Shifting at 7500 rpm quite a bit and I have a heavy foot. I'm also doing downshifts and rev matching when I race to. Does the way you drive determine how much oil your car can use? I remember I had this oil issue in my 06 G35 with the DE motor. But I didn't think this VHR had this issue :/

early model 370's had this issue as well, seeing as it looks like yours is a 2010 it might be one of the unlucky ones. unfortunately unless you purchased an extended warranty through Nissan themselves in the worst case scenario if it continues consuming oil like that you are most likely looking at an engine replacement unless you can live with topping off the oil every now and then.

maybe try a different brand/weight of oil?

So 2011 and up don't have this issue? I seen there was a TSB for the 2009-2010 oil consumption... lucky for me the dealer I bought the car from it came with a engine for life warranty so it should be covered for free. I'm not gonna change the oil myself and I'll just bring it in to them and show it's low and we'll probably change the oil and start an oil consumption test. Then out of it I'll get a free engine if it falls under their decision as a oil consumption

This may help

2010 40th
 

I'm currently in the same boat as you with my 2010, I bought the car march 2015 and I've always used Mobile 1 5W-30 full synthetic oil (Bad idea). I did Autocross, HPDE, 1/4 mile and the ocassional runs to mexico, I always kept an eye on the oil because it would burn a little after really spirited driving and I had no oil cooler so it was to be expected.
Last march when i was changing the oil a week after a track day it was around 3qts low which i thought was a bit excessive so i started keeping an eye on it, come June it was 2qts low not as bad as before, then in September it was 2qts low after 1500 miles due to 1 night at the 1/4mile and some mexico runs all in the same weekend, so i topped it off. In December I did another oil change and installed an oil cooler which helped. Come oil change time in march the weekend after TX2K17 it was 2.5qts low due to 3 consecutive nights of mexico runs.
A friend suggested i try a different oil weight so a month ago, I did an oil change and I went with Castrol edge 0W-40 (European Formula) its been 1K miles and no sign of burning, i'll be doing a track day in 2 weeks then ill really know if it made a difference.
I found the TSB and my car falls in the VIN range my car. I bought my car about 2 years ago from a Lexus dealership also bought an extended warranty but its not a Nissan warranty, currently it has 77K miles so I don't even know if it will cover an engine with this much miles.

Dang man sounds like your oil consumption is terrible. Hopefully your extended warranty covers you because it honestly sounds like you're either in dire need to replace the engine or you might as well just trade it in for a 2011 and up Z since the 2009-2010 have the recall. But it sounds like you got potential now to not deal w the oil burning issues now that you changed the weight of your oil? If you haven't burned anything after 1k miles you may just be lucky enough to be in the clear.... but dude you shall keep me updated in this thread and hopefully we can get our Z's to no longer burn oil anymore. And if all we need to do to fix the problem is change the weight of the oil then that's an easy fix for us!

what is the difference for the engines within the range from that TSB?

Idk man that's a good question, as far as I know all of the 370z's have the same set up so idk why exclusively 2009-2010 would have this issue..

Update, so tonight I did a test run and my girlfriend drove behind me when I did hard accelerations and she said she smelled a weird burning smell out of my exhaust. This was when I was accelerating at high rpms and accelerating hard. I wonder if I'm purely burning oil only when I'm accelerating hard?

**Update** Went to track on saturday and beat on it in 97 degree heat and going all out in the sessions, hottest the oil got was 221 degrees. Came back and let it sit for a day, checked the oil and it was 1.5 quarts low so its still buurning. Next oil change im going with 0W-40 .

The only thing that helped my motor oil consumption issue in the past was when I switched from Mobil 1 5W30 Synthetic Motor Oil to Valvoline SynPower 10W30 Synthetic Motor Oil with earlier oil change intervals. Most people that have a warranty can have there engine replaced under there warranty for the oil consumption issue because there is a TSB for the 2009-2010 Nissan 370's having oil consumption problems. If you can't live with topping of your engine oil every now and then you will have to try to warranty your engine under excessive motor oil consumption issues.

I bought my car used from a dealership and it came with an engine for life warranty and the they changed my oil and filter and we started a 1000 mile oil consumption test and they said if its burning under nissan's standards for block replacement then they will replace it.

dang man u might need a new block

Update: After 500 miles my car is a quarter of a quart low. Not doing too bad.