maxu2

Just checked my oil and once again it's at the low mark.
I checked it at 500 miles and it seemed low waited 500 more
miles and now its below the add oil mark.

irish44j

iTrader: (38)

sorry to hear that.....looks like it's time for a VQ30DE-K swap with S/C

MiniRX7

I also have a new engine. I better check my oil again.

maxu2

[QUOTE=irish44j]sorry to hear that.....looks like it's time for a VQ30DE-K swap with S/C.


Yes I do miss my 95se. Never had a problem with her. Ran like a champ
and never once added oil.

Stewpid

New engine, or used replacement?
lots of threads about 3.5L oil consumption.

maxu2

I assumed New, But when I bring the car in I will clarify.

BlackBIRDVQ

iTrader: (15)

I wonder if the precats are failing on these 3.5Ls like they where on the early QR25DEs in the Sentra SE-R and Altima 2.5s. Precat particles would get sucked into the motor durring deceleration (exhaust reversion), and particles would be stuck on the piston rings scoring up the cylinder walls. After that rings can't seal the cylinder and you get oil consumption problems. There where quite a few motors repleaced due to that problem, and when I did headers this weekend on Epacy's car I noticed that the front precat has been falln apart. He took a picture of the pre-cat and he might put it up on one of his posts bout the header install- if not PM him for that pic.

GBAUER

iTrader: (2)

That would explain why he managed to kill two engines so fast. When they replaced the engine, Nissan probably didn't poney up on the pre-cats. My consumption got really bad when I started to notice a rattle at WOT. Sounded like the exhaust was falling apart. I guess I know what I will be eliminating when I rebuild mine...

boondoxmax

iTrader: (1)

I am amazed at just because a few people have oil consumption problems that all 3.5L have the problem. I don't believe its a wide spread problem and I think the 35DE is a great engine....

GBAUER

iTrader: (2)

How many miles do you have? Most of us who have higher milage cars have this problem. The reason you've only heard of a few is because the engine is only about 4-1/2 years old, so the average driver only has around 50k on it.

Kevlo911

iTrader: (36)

Miles dont have **** to do with it from what I have been reading. Those precats just keep ****ing up. Look all the people with aftermarket headers, none of them have probs

GBAUER

iTrader: (2)

thanks for backing up what I've been complaining about...sort of that is. I'll really know what's causing it come about January or Feburary.

chr0nos

iTrader: (1)

that's it, this is the fianl straw. you just convinced me to buy headers.

MaximaPolak

iTrader: (9)

or a different car. Because, who would want to downgrade?













j/k

maxgangsta02

my HS headers are going on this weekend, i hope the precats arent f'ed, but my 02 with 34K has no consumption problems, reg oil till 10k and mobil one since then..

GBAUER

iTrader: (2)

you know... that one just might work with the wife! "Honey, I NEED to rebuild my engine due to blow-by and the increased cost of oil. Oh, and while I'm in there, I need new cams because my old ones are worn out. The injectors are worn out too, so I need those as well. Might as well get the big ones so they don't clog as easily! Oh, and one other thing, I need new headers so I don't kill my engine again. Since I'm doing headers, why don't you go out and buy me a new turbo, intercooler, and ECU for Christmas and I'll put those in as well. One more thing: my stock springs are pretty soft now, so I guess I had better get coil-overs since they last so much longer than the stockers. And I need a big-brake kit so my breaks don't over-heat in all this stop-and-go traffic I have to deal with going to work! ...honey! ...honey!!! ...where'd you go?"


and that's exactly how the conversation will go on my end!

chr0nos

iTrader: (1)

heh, i think you may have more success, if you take it one step at a tyme. i dont know if there is any evidence to support that fried pre-cats are screwing up the seals, and that's why there are so many oil leaks, but it sounds plausible. i have wanted to get headers for a while, and this just gave me the extra reason to do so.

GBAUER

iTrader: (2)

My wife has her S-10 with a 350 in it, I have my toy. It's time she let me drop some cash on mine this time! In all seriousness though, her's will leave mine in the dust every time even with a turbo.

MiniRX7

Well i know mine is a new motor because i can clearly see how new it is.

MY precats are failing.. TWICE now.. because of the retarded design. I told the dealer to check the precats BEFORE installing the new motor, but they didnt and installed the new motor with the broken precats.

GBAUER, it is true, that the precats failing can and will be sucked up into the engine. Fortunately, there are no loose particles in my yet..

I already order the Catman Gen2 headers NOT because i need the power, but ot get rid of the crappy precats that have FAILED TWICE ON ME. NIssan already ordered new precats for me but i am not installing something that failed every 30K.

I will have a new precat for sale soon!!... Mind you its the REAR precat that keesp fukking up. Not the front.

And this is not an isolated problem, it is very clear that there are lots of VQ35DE equipped cars suffering from oil loss issues. My buddy has a 2k3 and his has it. I saw a 2k4 in the dealer SAME ISSUE. My old bosses Pathfinder suffered oil loss as well with the VQ35DE. THis is a clear indication that something is defiinitely wrong . What is also distinctivie is that cars suffering from oil loss almost always exhibit rattling either from the timing chain or the precats.

NIssan should put a TSB or else they will be putting a new engine in my car for a 2nd time.

nismo0604

iTrader: (18)

burn it..its a witch

BewstAdd1ct

umm... you only have 500-1000 miles on a NEW ENGINE and youre surprised at oil comsumption?!


*THAT* is awesome

irish44j

iTrader: (38)

"....but what also floats?"
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"A DUCK!"

nismo0604

iTrader: (18)

"don't Give Me That, You Snotty-faced Heap Of Parrot Droppings"

ABS

Well, I think I am now seeing this problem too. Does anyone have a good source for low mileage or new 3.5VQ engines? I have to make a decision as to whether I repair or sell the car. The exhaust isn't making noise but I have the oil consumption and a loss of power which I think is a loss of compression (haven't confirmed that yet).

Thanks.

MiniRX7

NISSAN SUCKS PERIOD.

I cant believe dealerships are amking it sound like its a none issue.

I am just glad mine gave me a new engine. Is there something more active that we can do?

maxu2

[QUOTE=BewstAdd1ct]umm... you only have 500-1000 miles on a NEW ENGINE and youre surprised at oil comsumption?!



Yes Nissan replaced my short block and I am surprised and disappointed
that it did not fix my oil consumption problem. I dont understand your ?.


Header ?, How do they sound?
I dont wont to increase the noise or sound of exhaust too much.

maxu2

also I have no noise coming from my car at this time(such as exhaust rattle).
The only noise/rattle was the timing chain due to low oil which was what
brought my attention to all this.

BewstAdd1ct

new engines normally burn oil while the rings seat. give it 2500-3000 miles before you see a drop in consumption.


it IS a non-issue, especially on a new engine. normal condition, thats all there is to it. if youve got over 6000 miles on a unit and think you have an oil consumption issue, then it might be looked at. below that its normal.

BlackBIRDVQ

iTrader: (15)

I wouldn't call oil consumption normal on a GOOD engine, like Nissan, Toyota or Honda. Basically from my personal experience, once a oil burner always a oil burner. My 3.0L never burned a drop even when new, and hell even Acuras with their 10K mile oil changes don't need any top offs. If this was a VW motor, I would call this a NORMAL issue. Japanesse motors are built to very high tolerances with high quality parts and really don't burn a drop of oil durring their "break-in" period.

Did any of you get just a SHORT block installed ? Just trying to toss some more wood in the fire here, but your cylinder heads might have not been repleaced and you are getting some premature oil leakage past the valve seals. Long block includes new heads, and in the old days it came with a timing chain, oil filter, all the covers on it- you just needed to swap over the exhaust manifolds and the intake manifolds with injectors etc. He11 some Quest VG30E motors even came with oil in the crankcase !

BewstAdd1ct

hmm... not sure what you mean by 'good' engine, but M96/02's in the 996s, and even worse the 996 turbo tend to burn quite a bit of oil.

i guess you can blame it on the nickasil