Excessive oil consumption?

cheshirecat · 08-24-2012, 10:46 AM

Quote:

Originally Posted by cosmicdust73

See this is what I'm afraid of... my short block installation will most likely be completed today but there is no guarantee this will even fix the problem.

If it still consumes oil, get another engine. You are not on the hook for a faulty motor.

Just remember, as others have mentioned, that oil consumption during the first 5000 miles is normal. It should be significant at first and slowly die down to practically nothing.

I'm still consuming over a quart per thousand miles @ 50k on the odo. Went through the same thing with my '06 350z with the rev-up engine, which was notorious for oil consumption issues.

Just feels like another typical Nissan experience.

2011 Nismo#91 · 08-24-2012, 11:27 AM

That's impressive in a bad way, I use just a bit less then 1 quart ever 3k miles. And I just have 6k miles.

cheshirecat · 08-24-2012, 11:31 AM

No kidding. I actually had to fill it with two quarts in a thousand miles a couple of months ago. The best part? It's all highway driving. Zero spirited runs since I've found it's consuming.

Oh well.

DLSTR · 08-24-2012, 01:17 PM

Gently broke in per the book. Just changed oil at 14k+miles. Zero added over the 8000mile interval. Mobil 1 5w-30. Used a bit until about 7,000mi. Seems like a good motor. 2010-Z.

2011 Nismo#91 · 08-24-2012, 02:15 PM

Quote:

Originally Posted by DLSTR

Gently broke in per the book. Just changed oil at 14k+miles. Zero added over the 8000mile interval. Mobil 1 5w-30. Used a bit until about 7,000mi. Seems like a good motor. 2010-Z.

Nice, Mobile 1 is good stuff.

Found a nice table of flash point temps for a lot of different brands.
More Than You Ever Wanted to Know About Motor Oil

Telephone · 08-24-2012, 09:48 PM

Quote:

Originally Posted by 2011 Nismo#91

That sucks, what oil are you using/used? Switching to something with a higher flash point would help.
You can also get the oil tested and see if anything usual is going on.

How does this help? If it's oil blowby, then that's the source of the problem.

Telephone · 08-24-2012, 09:50 PM

Quote:

Originally Posted by cheshirecat

No kidding. I actually had to fill it with two quarts in a thousand miles a couple of months ago. The best part? It's all highway driving. Zero spirited runs since I've found it's consuming.

Oh well.

That is unacceptable. Are you seeing any blue smoke?

cheshirecat · 08-25-2012, 05:00 PM

Quote:

Originally Posted by Telephone

That is unacceptable. Are you seeing any blue smoke?

No. The exhaust tips get covered in soot almost immediately, though.

Been through it all before, like I mentioned... although the 350 didn't burn oil anywhere close to this. I read about G35's back in the day with 2qt/1k miles and thought it wasn't possible.

Boy was I wrong.

370Z JT · 08-30-2012, 03:07 AM

I had my oil change in may. today after 2,500 miles the oil level reads half way between the H and L. My understanding is that's about 1/2 quart lost. Should I be concerned? 17,600 miles on the odometer.

cheshirecat · 08-30-2012, 05:57 AM

I wouldn't be concerned with 1 quart over 5k miles. Anything over that, though, would warrant attention.

You are correct in that the dipstick between the L and H is approximately one quart.

henry0844 · 08-30-2012, 06:46 PM

I would be worried about any oil consumption what so ever. my z was consuming a little oil
about 1/2 quart per 3k miles. tailpipes really dark with soot. I know it wasn't running rich due to being tuned. I have since sold my z and got a 2010 g37 that doesn't drink a drop of oil and the tailpipes are perfectly clean and have been for several thousand miles. I notice that the car runs much stronger than my z ever did even with g3's full berk exh and tune. in my opinion a motor should never burn oil if it is running properly. I feel that after break in if you are still consuming oil, you have a problem.

cheshirecat · 08-31-2012, 07:30 AM

Quote:

Originally Posted by henry0844

I feel that after break in if you are still consuming oil, you have a problem.

I agree- however, everyone needs to weigh the pros/cons of going down the path of service (and aggravation) with Nissan versus cleaning tailpipes and seeing a little bit of oil gone between oil changes.

kenny's 370z · 08-31-2012, 11:30 AM

and for those that are burning oil,catch cans ARE A MUST !.

henry0844 · 08-31-2012, 03:48 PM

Quote:

Originally Posted by cheshirecat

I agree- however, everyone needs to weigh the pros/cons of going down the path of service (and aggravation) with Nissan versus cleaning tailpipes and seeing a little bit of oil gone between oil changes.

I agree, dealing with service depts are a pain. most of the time they don't know what u r talking about anyway. it just stinks to have a new car like the z, and have it drink oil like an old vw.

08-24-2012, 01:17 PM	#49 (permalink)
DLSTR A True Z Fanatic Join Date: May 2011 Location: Süd Germany Posts: 2,462 Drives: 21Supra 2.0/22 M240i Rep Power: 21267	Gently broke in per the book. Just changed oil at 14k+miles. Zero added over the 8000mile interval. Mobil 1 5w-30. Used a bit until about 7,000mi. Seems like a good motor. 2010-Z. Last edited by DLSTR; 08-24-2012 at 01:27 PM.

08-30-2012, 03:07 AM	#54 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	I had my oil change in may. today after 2,500 miles the oil level reads half way between the H and L. My understanding is that's about 1/2 quart lost. Should I be concerned? 17,600 miles on the odometer. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

08-30-2012, 06:46 PM	#56 (permalink)
henry0844 Base Member Join Date: Oct 2010 Location: ventura Posts: 167 Drives: 10 370 base sprt pkg Rep Power: 15	I would be worried about any oil consumption what so ever. my z was consuming a little oil about 1/2 quart per 3k miles. tailpipes really dark with soot. I know it wasn't running rich due to being tuned. I have since sold my z and got a 2010 g37 that doesn't drink a drop of oil and the tailpipes are perfectly clean and have been for several thousand miles. I notice that the car runs much stronger than my z ever did even with g3's full berk exh and tune. in my opinion a motor should never burn oil if it is running properly. I feel that after break in if you are still consuming oil, you have a problem. __________________ 2010 PW 370 base+sport 6mt Stillen g3's/ Berk CBE / Stillen 19 row/ uprev: 308whp 255wtq dyno jet @ specialty z.

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08-24-2012, 11:27 AM	#47 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,400 Drives: slowly Rep Power: 40569	That's impressive in a bad way, I use just a bit less then 1 quart ever 3k miles. And I just have 6k miles.

08-24-2012, 11:31 AM	#48 (permalink)
cheshirecat A True Z Fanatic Join Date: Jan 2009 Location: Florida Posts: 1,428 Drives: N54 135i Rep Power: 292	No kidding. I actually had to fill it with two quarts in a thousand miles a couple of months ago. The best part? It's all highway driving. Zero spirited runs since I've found it's consuming. Oh well.

08-30-2012, 05:57 AM	#55 (permalink)
cheshirecat A True Z Fanatic Join Date: Jan 2009 Location: Florida Posts: 1,428 Drives: N54 135i Rep Power: 292	I wouldn't be concerned with 1 quart over 5k miles. Anything over that, though, would warrant attention. You are correct in that the dipstick between the L and H is approximately one quart.

08-31-2012, 11:30 AM	#58 (permalink)
kenny's 370z Base Member Join Date: Jun 2012 Location: TN Age: 58 Posts: 243 Drives: 2012 frontier sv v6 Rep Power: 13	and for those that are burning oil,catch cans ARE A MUST !.