I am losing about 2.3 quarts of oil every 3k miles. Mobil 1 Syn and Mobil 1 M1-105 filter. Had the dealer replace my oil for the record and get it monitored. I am worried that since I do my own oil changes I wont be able to provide oil change records. Is it necessary for oil records in order for it to be covered by warranty or can they just take a look at how much sludge exists and see if I have not been changing oil?

 

As far as records... make sure that you have your receipts for your oil filters and oil purchases... that is the best you can do to prove that you have been changing your oil regularly... it MIGHT help to keep your logs on file with Nissan's Web site as well, but I kinda doubt it.

And sludge? I think that would have to be a LONG time between oil changes there...

 

I have been losing about the same amout of oil. I am using Castrol Syntek, and has always been changed at the dealer. Had it monitored, but Nissan said that the consumption was within factory specs. Although they will not provide these mysterious specs. Seems like a lot of oil consumption to me...

 

uhh yea... thats the thing I never bothered to keep receipts. I am the worst when it comes to stuff like that. Am I just dead in the water?

 

You say you are losing oil, I guess what Iam asking is, are you leaking oil some where out of the ingine? or are you burning that much oil. Cause if you are burning that amount of oil within 3k miles, there defenitely something wrong (oil rings did not seat correctly or valve guides), no new car should be anywhere near that amount, factory specs sounds like a line of crap.
Good Luck solving your problem, hope things work out for you.

 

my dealer told me 1qt/1000 is within tolerance. There is a lot of blowby with this engine

 

Im definitely burning oil because there's no sign of a leak. Man thats hefty if its 1 qt every 1000k if I followed the factory intervals of 5k changes I would run on empty by that time.

 

Just for the hell of it!. How is your oil presure?
I am runing Mobil 1 5-W and @ 60 MPH on 6th gear, my oil gage reads between 55 and 60 psi, @ 2200 RPM`s, I feel this is pretty much where it should be.
How about when you idle @ 700 RPM`s is your oil gage about 40 psi?. If this is not the case and you have low oil preasure in my opinion you do have alot of blow by. Just my 2 cents.

 

You might want to check on how much oil the dealer is putting back in the engine after an oil change. The specs that I have is 5 US Quarts. Now I am not a person that knows too much about engines, but I do remember that the receipts that I have do not always say 5 quarts. I am also curious if the dip stick is accurate. I have been having much of the same problems; however, after this last change when the dealer was doing their test, I have not lost near as much oil, and my oil pressure as been around 30 - 40 psi at idle and at 60+ psi at 65 mph in 6th gear. Hope this helps...

 

factory changes call for oil @3750

 

You're using 2+ quarts an oil change and they say that's normal ? Who the heck told you that ?

I'm also losing 1+ qt per 1k, in that scenario if I go 5k between oil changes (which is recommended with synthetic) I would literally ahve no oil in the car at all.

Somethings broken, you just need to convince them to fix it.

--wes

 

Most car companies draw the line on acceptable oil consumption somewhere under 1000 miles per quart. It is not unusual for them to refuse to replace an engine like yous that is burning a quart in 1300 miles. When VW introduced the Rabbit you had to be worse than a quart in 600 miles to qualify for a new engine and that was with a little **** pot 4 cylinder. That said, most VQ engines burn very little oil. Mine still shows completely full after 5000 miles.

 

I may be wrong on this but ..... it seems as though I mainly see accelerated oil consumption for people who are using synthetic oil.

Would this have any factor and maybe you should try to use non synthetic at next oil change and see if the problem persists.

 

I said this exact same thing in another thread recently, but I've since spoken to some other board members that have used syn and they haven't had an excessive amount of consumption problems...

 

I dropped off mine today for this issue. I have to add 3 or 4 quarts between oil changes to keep it full. I went on a 700 mile trip last weekend, and that burned through 3/4 of a quart. No dripping, and I revved it while someone stood behind it and they said it was smoking. So if oil is getting by the rings and burning, does that usually mean new engine? Or do they take the engine apart and replace the rings? Even if they did that I can imagine my spark plugs, headers, and whole exhaust system is probably pretty coated with burned oil.

Well I can always hope for best case scenario of new engine and exhaust system.

 

First off they starta oil consumption test.....I'm on 600 miles of it now. After 1k you bring it in and they measure....I beleive it contnues for 3k. After that I'd assume they rebuild or replace the engine...either way the car is devalued.

--wes

 

Why does a new engine devalue the car (I'm not arguing that it doesn't...just curious). I mean how does putting in a new engine hurt the car? I can understand a wreck or something devaluing the car because the frame may have been bent or something, and even if it gets repaired back to spec, its not going to be as strong as it was originally, but it seems like an engine newer than the rest of the car would be a good thing. *shrug*

 

I use Amsoil ASL 5W-30 synthetic and my Z doesn't burn a drop in 5000 miles.

Speed Ricer: Let us know how this comes out and what Nissans policy is about oil consumption.

 

Just wondering, how do you figure that the repaired engine won't be as strong?

 

He was talking about body/structural repairs, not the engine.