Are you an engine builder?

Switched to synthetic at a conservative 2000 miles on the Z, much like I switch to synthetic right at 1200 miles on all my built turbo engines... hasn't burnt a DROP since switching.

It's safe to run the VHR on synthetic out of the box, if and only if you break it in aggressively. Mobil 1 comes as factory fill on many cars - Corvette, Evo's, Mercedes AMG (I believe)...

Was down 3/4 of a qrt. 600 miles after an oil change. That is the most I have lost in the 16k miles I have had the car so far. If that keeps up that would be about 2 qrts. every oil change (3k miles) which doesn't sound good to me. No track time in that 600 miles either. Before the 15k miles mark I was adding about 1 qrt. between every oil change.

Those of you with OC issues; did you baby the motor for break in?

From mile 26 - 500, I did not exceed 4k rpm, and I did a lot of engine breaking and changing rpm a lot (heard engine breaking helps seal the piston rings). From mile 501 -16??? (now) been flooring it to 7500 rpm every time I drive it. Test drove it from the dealership from mile 20-26, and floored it a lot then...hopefully that didn't do anything...or anyone who drove it before the 20 mile mark.

The way you broke it in is perfect, especially since you floored it when you were test driving it.

Sounds like you have a leak or your engine is just a dud.

Sounds like you adhered to the Nissan recommendations to the 'T'.....NOT.

What Nissan recommends is simply in place so somebody doesn't A) smoke the **** out of a non-broken-in organic clutch in the first 500 miles or B) seize a camshaft or other engine component that actually DOES need a short break-in.

CYA for Nissan. That's all it is.

Subscribed.

O cool, reminds me of the problems I had w/ my 03, then my 06.... can't wait for this ish again

I'm not sure this is true. I checked my oil level again today and, after the car sat for about 5 hours, it was at about 13-14mm below H (3400 miles, no oil change yet). I added exactly one quart and that brought the oil level EXACTLY to the H dot.

what happened to nissan?? Im a fanboy of Nissan but this problem started in 05, 5 years later we have same problem with high rev engines???

Nissan needs a engineering fusion with Mercedes for a V6 VVEL Twin Turbo Direct Injection engine...

a friend who just went through a short block replacement showed me the paperwork on ntb10-090 dated july 30,2010. it is the the service bulletin for 09 to 10 370z for cars with vin built before april 5, 201 jn1az4fh(*)am303670 and jn1az4eh(*)am503778 ... it is pretty much the same as the infiniti tsb...

There's nothing wrong with the design of the VHR, if engines are legitimately burning oil regardless of break-in procedure, the fault lies in quality control. Maybe they forgot to plateau hone some of the cylinders! Whoops!

Who knows? Nissan of course will never admit what went wrong, but I'd like to get a hold of a failed short block to see what the cylinder walls show.

Man but we have 5 years with the same problem...
that's a big problem...

We need to hear from some tribologist' or at least some UOA's analyzed by triboligists and not just the data from labs like BlackStone.

True NNA will never admit failure or quality control on a TSB. A recall is a different story. My dealer did not even have the authority to tear it down. All of the dealers were instructed by NNA to ship the bad long blocks (untouched) back to Nissan in Tenn for inspection. The bro had one of the first replacement engines, when they were still being hand built in Japan.

Note: I am referring to the 06 RevUp long block.

Has anyone been able to confirm if there is a TSB for the 370Z and get hold of the TSB?

If this is true I think a new thread should be opened up by a 370 owner and by someone that is going to be able to take the responsibility to own it and update the first post on an ongoing basis. Because it will get loooong!

It's real, but I can find no detailed specifics, yet.

http://www.the370z.com/members/socal...2705-nhtsa.png

Edit: My bad, looks like NHTSA has a TSB search engine that is not by claim and INDEED they do list the TSB as SoCal 370Z provided above.

I would like to see a scanned copy of the service order on the short block replaced with the TSB listed.

I just checked with my resource for the official TSB and came up empty. It does not mean it's not out there and valid just that NNA has not posted it yet to my resource.

For all those, like me, that had a 350z.... Looks like we bought the same problems we use to have. Can't wait for the 400z. Cause then I'll get to AGAIN consume oil along w/ money in my wallet via purchasing 1 qt top offs.

I think Nissan boarded the failicopter back in 2005 and hasn't gotten off the ride yet.


http://i27.photobucket.com/albums/c1...ailicopter.png

this problem will be fixed in the 2011 model or will have to wait until Nissan design a new engine??
or is that Nissan have quality control fails each year in the VHR lines...?

I just took my car to the dealer today because with less than 2700 miles since the last oil change the car consumed 1 qt of oil.

Their recomendation was to change the oil every 3 months... Ester Oil. :eek:

They say that my car is going on the list of Oil Consumption Problem Program so they can monitor the issue :dunno:.

Hmmm....I wonder what this "OC Consumption Program" is all about.

took mine in for an oil change 3 weeks ago, they said that it was 1qt low and we should keep an eye on it. now the engine is making a rapid ticking noise[sounds like a playing card a bicycle spoke] between 2-4,000 rpm's when the engine is hot. it does not do it under hard acceleration but is noticable when slowly accelerating in 1/2nd gear. the car makes the noise in neutral so its not driveline related. i hope my motor is okay.

The very first question that NEEDS to be asked... What kind of oil got put into your engine. Sounds to me like maybe, just maybe, the improper oil was put into it. Now, from what you describe, it sounds as if you have oil related valve train issues (?).

assuming I am reading the 370z tsb correctly, for
3001-3500 miles, >=22mm is "no good", <22mm is good; therefore I believe you're ok.

This is for real.

Vehicle VIN/DATE:
JN1AZ4FH(*)AM303670/05-APR-2010
JN1AZ4EH(*)AM503778/05-APR-2010

Some guidelines on "NO GOOD" engines:

Miles mm from H (dipstick)
1001-1500 >=10mm
1501-2000 >=13
2001-2500 >=16
2501-3000 >=19
3001-3500 >=22


OK. Now, let the self-OC-tests begin.


Info above is what I have. Right, wrong, or indifferent, use it or ignore it. I am not claiming accuracy nor provide guarantees, recommendations, etc. Use at your own risk. Use GOOGLE or check with your dealer!!!!! :)

AK has been sent this TSB pdf to be uploaded at the forum.

It's here: http://www.the370z.com/370z-technica...level-low.html

Thanks Socal :tup:

Got my new short block it took them 7 days to installed but it's running beautiful now better than when it was new.

Can I bring my Z to any Nissan dealer for an Oil Consumption test? Or do I need to bring it back to where I bought it?

Also, I assume I have to bring it in and have them do an oil change, am I correct?

Contrary to what i read here, it looks like from the H to L marks is equal to 2 quarts.

I thought I would just share this info. On the other hand, maybe I read wrong! :)

To me, H to L seems to be 1 qrt. I start at H and after 600-800 miles I am between H an L and it takes 1/2 a qrt. to get back to H.

Burned approx 1/4-1/3 qt. over the last 3500 miles here. Was sitting a little above the "L" mark, and it took what I had left in my last bottle of 0W-30 (half of which was used for my oil change initially) to get it back to the "H" mark. Basically, I've used 0.5-0.6 qt of makeup oil since my oil change over 5000 miles ago. Engine still only has 7500 miles on it.

All looks good :)

i think mine is burning it but not enough to make a diffrence

Check again please. Don't know if I read you right, but no way could .5 qt fill from L to H.

As I sTated above, I strongly believe it takes 2 qts to raise the level from L to H. Hopefully, I am wrong but if you put 3,500 miles and you went down to almost the "L" mark, this means that you are consuming 1 qt every 1500 miles. This is 'almost' at the 'no good engine' range using the TSB chart.

So if your car was built before those last 6 numbers at the end it could be an effected engine??? Cause if so I'm 503734 LOL... But knock on wood I have not had to add alot of oil to the car in between changes and the engine is nice and quiet.

You're over analyzing. I had roughly half a quart of make up oil available to me, not counting the 1/8 qt. or so that spilled out of the bottle in my trunk, and I was able to get my oil level back up to right below the "H" mark, where I had it initially, after 5000+ miles on this oil change by using what oil I had left.

Now that I think about it, I may have received an exaggerated reading when I checked the oil (and now I realize I did because the car was parked on a slope facing uphill :bowrofl:) but it was definitely slightly low. Let's say more like half-way between the "H" and "L" marks, and is now right below the "H" mark where it should be.

Or rather, let's just say it was 1/4-to-1/3 qt. low since that seems to add up given my oil bottle reserve. ;)

IMO this is the amount of oil a VHR should be consuming. Less than 1/2 qt (now that I consider how much leaked out of that bottle) per 5000 miles, or less than 0.1 qt per 1000 miles.

Broken in hard, broken in fast ;)

I am new to this site. I just purchased a new 2010 Sportster. It currently has 347 miles on it. When I pulled into my garage the other night I heard a loud ticking from underneath the hood. I have not had a chance to check the oil level yet. My VIN shows that my car was manufactured prior to the April 5th date (TSB dated 7/30). My question is does the dealership have the responsibility to inform the consumer about the TSB considering that there is a known problem with oil consumption?

I don't think so as it is not a recall. It is your responsibility to check the dipstick and take actions from there.

Not all cars have the OC issue.

GL!

^^In your owners manual it states for the owner to check their own oil levels.

Now if you are having the car regulary maintained by the dealership as in taking it to them when the mfg suggests in the owners manual to change the oil and IF the dealer takes an oil reading before the oil change and notices it low on oil then YES it's their responsibilty to inform you of low oil and they will normally check to see if there are any recalls or TSB's. If they check for a TSB, then they should inform you that the car meets the criteria for them to start the oil consumption test.

I would suggest taking a copy of the TSB with you to the dealer if you have any suspicions of excessive oil consumption. I would also suggest that you check the oil on a regular basis (every two weeks or every 500 miles) and keep a log or on post-it notes.

The car with 347 miles on the engine will consume some oil as the engine is breaking in. The ticking sound, I would be concerned with it and report it to the dealer. It's possible the car did not come out of the factory filled with Nissan's esther oil and the dealer may suggest running esther to see if the ticking sound continues. Note there are alternate oil that have the same additive package in their oils as Nissan's esther oil and at a much lowercost.


I ran Penzoil Platinum (which is synthetic) during my break in and changed the oil several times through out the first 1200 miles.There is allot of assembly lubes in a new engine that need to be cleaned out hence the cheap PP oil and several short run oil changes. There after find a good oil to run and remember a Used Oil Anaylisis is your best friend, they run between $60 and $129 for some peace of mind. Some here have been using Red Line synth oil as their everyday oil to run. I cannot vouch for Red Line with the 370Z, but they did not fare to well on the 350Z VDQE engine. Nuf said there as that statement will probably raise some controversy. The point is that you need to find the best oil with your type of driving as in daily driving, track, spirited driving and your geographical location makes a difference in the oil. Point is, you will never know until you do your own used oil analysis as all cars are not created equal and what works in Johnnies car on the other side of the USA will not have the same results with yours being the type of driving you do and your location.

I said enough, and I am just enjoying my 370Z and really do not want to venture down again on the Oil Consumption Road. I will still subscribe to this thread maybe just to offer some experience with the oil consumption we had with my brothers revup 2006 350Z. His was one of the first to have his engine swapped back in the day. Everyone here is familiar with the longest thread going on My350Z dealing NNA and the infamous oil consumption. I have posted earlier in this thread another link from My350Z on Oil by member "Resolute". Very good reading there if you want to know more on oil.

I have said it before and will again, there should be another new thread opened up by a member here (not from G37) to be able to update the first post from time to time. This threads first post is already outdated showing the TSB for the G37 when the 370Z TSB has been out since June 30, 2010.

Cheers ZForce aka ZeeForce
Curtis