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TSB for oil consumption on the VQ37VHR.

Originally Posted by ZForce John, that seems like a lifetime ago. I am hoping to not have to go to that dark place again.

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Old 09-15-2010, 08:16 AM   #31 (permalink)
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John, that seems like a lifetime ago. I am hoping to not have to go to that dark place again.
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Old 09-15-2010, 08:34 AM   #32 (permalink)
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I saw an 05 VQDE in the dealer a few months back getting an engine swap due to OC, so they were not excluded from the ugly OC head. It was also under warranty for the engine swap.
Yup... All year DE motors had OC issue. None so far has been reported for the HR motors (07-08 Z and G sedans).

And I haven't really heard any OC issue on the 08+ G37s either... maybe it's a 370Z isolated issue? Does anyone have the full TSB document including the solution? I'd like to see what's all involved in resolving this issue.
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Old 09-15-2010, 08:35 AM   #33 (permalink)
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Nope. Revup is still DE.
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Originally Posted by ZForce View Post
Nope, RevUp was the 05 Anniv MT and 06 MT engines. HR came after the Revup on the 07 & 08 models.
Thanks for clearing that up for me.

I guess I am going to have to start seriously eyeballing my oil levels. This is not looking like it will be any fun at all. Looks like I may have to hold on to my S13 after all. I was planning on selling it and going all in on the Z. Guess it is always good to have a backup plan.
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Old 09-15-2010, 12:14 PM   #34 (permalink)
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Thanks for clearing that up for me.

I guess I am going to have to start seriously eyeballing my oil levels. This is not looking like it will be any fun at all. Looks like I may have to hold on to my S13 after all. I was planning on selling it and going all in on the Z. Guess it is always good to have a backup plan.
dont worry about it too much dave.

just check your oil and u'll be good.

I check mine each week and its not movin.
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Old 09-15-2010, 05:14 PM   #35 (permalink)
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Yup... All year DE motors had OC issue. None so far has been reported for the HR motors (07-08 Z and G sedans).

And I haven't really heard any OC issue on the 08+ G37s either... maybe it's a 370Z isolated issue? Does anyone have the full TSB document including the solution? I'd like to see what's all involved in resolving this issue.
the fill TSB is posted in post 1. plus it is only for the G's nothing out yet for thwe 370
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Old 09-16-2010, 12:51 PM   #36 (permalink)
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^Yup, and the TSB is for 08+ G37's
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Old 09-16-2010, 03:06 PM   #37 (permalink)
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After they did my first oil change to nissan ester I checked the level at about 3750 miles and it was below the L on the dipstick. I changed it immediately to full synthetic which I heard is good for a lot longer than 3750, its been 200 miles and it went from the H on the dipstick to about halfway . I think its about time I call my dealership
I don't think you should have changed to synthetic that early...
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Old 09-16-2010, 03:08 PM   #38 (permalink)
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the fill TSB is posted in post 1. plus it is only for the G's nothing out yet for thwe 370
Fuuu.... my bad Shumbs...

I just thought since it was from The370Z, it was for 370Z... This problem could also relate to the new M37 then? Man... no wonder Nissan wants to stop building the VQ and move on to Mercedez motors...
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Old 09-16-2010, 03:43 PM   #39 (permalink)
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After they did my first oil change to nissan ester I checked the level at about 3750 miles and it was below the L on the dipstick. I changed it immediately to full synthetic which I heard is good for a lot longer than 3750, its been 200 miles and it went from the H on the dipstick to about halfway . I think its about time I call my dealership
Half way down dipstick = 12 mm
200 miles = NO GOOD

Again this is for the G37 TSB, but it's still not good and I would...


Definitely get it into the dealer and have them record on your service record that "Customer states that engine is consuming excessive amounts of oil' and request the dealer to start an oil consumption test. It's important that you have them record this ASAP on your service record. Call it a cya (cover your arse) for any future decisions from NNA (Nissan North America) to replace your engine.
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Old 09-22-2010, 09:47 PM   #40 (permalink)
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Subscribed. I haven't had my oil changed yet but right now mine's at about 13mm with 3300 miles on the clock. Of course, I have no idea whether my car was filled completely to "H" at the factory but worst-case (13mm) I'm still within the safe zone. I've also only checked the oil two other times and the level doesn't appear to have changed. I'll definitely keep an eye on it once I get my oil changed at 3750 miles.

Don't cars tend to burn more oil during the break-in period? In other words, wouldn't consumption be at its worst when the car is brand new?
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Old 09-22-2010, 11:32 PM   #41 (permalink)
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I don't think you should have changed to synthetic that early...
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)...
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Old 09-23-2010, 02:47 PM   #42 (permalink)
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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.
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Old 09-23-2010, 03:19 PM   #43 (permalink)
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Those of you with OC issues; did you baby the motor for break in?
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Old 09-23-2010, 11:40 PM   #44 (permalink)
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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.
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Old 09-23-2010, 11:48 PM   #45 (permalink)
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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.
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