Question about 2003 Infiniti FX35

1 Answer

Burns oil on start up only

My 2003 Infiniti FX 35 seems to only burn oil on start up...I have followed the vehichle and can't notice any Blue smoke whatsoever during moderate or even extreme acceleration. However when it sits overnight it smokes terribly on start up for about 1 minute or so. I cant imagine how oil appears to be entering into the Number one combustion chamber when shut off, but not when running under even extreme acceleration. I have confirmed the number one cylinder since it is the only spark plug continuing to foul out from deposits, while the other 5 all burn light tan as expected.....The dealer is saying the valve seals are the issue. It seems odd that a defective seal would not allow oil to pass while the engine is hot and operatiing while being fully lubricated but somehow allows oil to seap past an elevated valve stem mount in the head while shut down. The car uses about 1/2 -1 QT per week with only being run 100 miles or so... the amazing thing is I can drive the car 300 miles on a trip and not be low even a fraction of oil as long as I fill it before beginning the trip. So clearly the seals are functioning duirng operation..Thanks for any insight you may have.. Doug Robison

Posted by douglasrobis on

  • Anonymous May 26, 2009

    every morning i go to start my 1996 1.5 lit 4 cyl mazda protege and every time it burns alot of oil but only for a few sec and then it stops and while on my way to work i wonder why my car dosen't burn the oil while i am driving fast like 80mph . i have ask around and some mech say the piston rings need replaced and they need to do alot of things to the block its self to fix it at which it will cost me about $2000.00 dollars and if anybody has a solution i am open to any ideas that will lead to a fix thanks.

  • Anonymous Mar 26, 2014

    It has 155,000 miles. It has almost always had Infiniti dealer service. But most of the time it smokes for 30 to 90 seconds when it's first started for the day, and the temperature is below 70 degrees. And it smells like burnt oil. It also uses a quart of oil about every 500 miles. But it doesn't leak any oil. So what are the most common causes, from most likely, to least likely?



1 Answer


  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,118 Answers

The dealer is right its a valve stem seal, when it sets valve not moving oil when hot will seap down thru valve seal into combustion chamber hense oil smoke when you start it up. its burning oil when your going down the road you just cannot see it because its such a mynute amount, because oil is moving and dosent get a chance to run into cyl. like it does when its setting, but its burning it. if its fouling a plug its bad and may be more than just a valve like maybe oil ring on piston. i got 40+ years of experance working on autos and trucks and if its using that much oil in just 100 mi. you got to be seeing something.

Posted on Jan 26, 2009


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2005 Nissan Path:replaced batt, alt, plugs, coils due to rough run & smoke. 1st smoke was blue after new parts it's more gray or white. New plugs smell like fuel. Exhaust is rich in fuel smell. Ideas?

Blue/grey smoke is typically engine oil burning.

Grey/black smoke is typically excess fuel (or insufficient air).

White smoke is invariably water that has turned to steam. (water is a natural product of combustion as well as the stuff the head gasket keeps out of the cylinder).
Sometimes an engine can emit a fine mist of unburned fuel that seems like white smoke.

Clearly your engine is burning some engine oil. Perhaps the valve stem oil seals are failing. When an engine noticably burns oil it must be realised this isn't good for the oxygen sensor and catalytic converter and it is inevitable the life of these things will be shortened.

It is doubtful the replacements you have so far carried out will have changed anything and it is likely to be coincidence the colour of the smoke has changed.

What is needed is a diagnostic check to inspect the live data from the sensors when it will probably be found one or both oxygen sensors will need replacing and perhaps other things have grown tired too - at an extended mileage an injector could start dribbling or the spray patterns be so poor the engine won't be able to burn it all and then it will be expelled into the exhaust.

Apr 26, 2016 | Nissan Cars & Trucks

1 Answer

Blue smoke

Blue smoke (how many miles on engine, 50k or 500K???????
to some this means, burning oil, others steam
it that blue smoke lingers a long time that is oil burning
and smells just like oil burning.
and means 2 things,
1: engine burns oil.
2: if car had autotmatic trans the vacuum modulator love fail
and suck ATF fluid to the intake plenum and burn it, and bingo burning oil like mad.
3: PCV valve packed solid,and forces engine to leak oil or burn oil. or both. this is a 50k miles service point, skipping this?
4: gas in the oil making it thin and not sneaks past valve stems.
does oil change cure this.>?

now engines.
worn out engines smoke. (burn oil)
as do bad valve guides and seals.
and bad piston rings.
100 years same story, and miles matter. History on engine too.

Feb 26, 2014 | Geo Metro Cars & Trucks

1 Answer

My freelander land rover is making blue smoke coming out of the tail pipe at start up once I drive it after 20 minutes no more until next day what is the problem?

valve seals allowing oil into cylinders
oil ring on piston broken
worn valve guide in head
blue smoke means ur burning oil
black smoke burning to much fuel
white smoke burning coolant
the landrover part makes my wallet hide
leaving it will only foul up your plugs,crud up inside the engine
and eventualy kill it. no quick cheap fix there sorry

Feb 03, 2012 | 2003 Land Rover Freelander

3 Answers

My 03 745li puts out light blue smoke sometimes when engine gets hot driving around town... why is that?

blue or blue/gray smoke is a sign that engine is burning engine oil. keep an eye on oil level and if engine is getting hot or over-heated this will not help your situation.

Jan 26, 2011 | 2003 BMW 7 Series

2 Answers

What size battery is needed for an infiniti fx 35?

A 35 series battery with at least 500 cold cranking amps.

Oct 31, 2010 | 2003 Infiniti FX35

1 Answer

Seems like my car has oil burning, need new Manifold. I would like to know why my car burning this much oil; is there a Manufature recall on these two items?

If there is blue smoke coming out the tail pipe it is burning oil. If there is not blue smoke then it's not burning it would be leaking. And have you checked the oil level? Are you adding oil? if it has smoke in the engine compartment then it could be a intake manifold seal but need more information to help you.

Sep 15, 2010 | 2003 Nissan Altima

2 Answers

Blue smokes come out tailpipe when i start the car but stops afte

Helllo there
Symptom: Gray or blue smoke from the exhaust. You notice gray smoke coming from the exhaust when you start your car. The smoke may or may not disappear after the car is warmed. If it is, it is less noticeable. The smoke may have a bluish tint to it. Possible causes:

  1. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  2. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)
  3. Damaged or worn valve guides.
    The Fix: Replace valve guides. (Not a DIY job)
Symptom: Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn't have the same power as it used to.
Possible causes:

  1. The PCV system is not working properly.
    The Fix: Replace PCV valve.
  2. The engine may have mechanical problems.
    The Fix: Check compression to determine engine condition.
  3. The engine's piston rings may be worn.
    The Fix: Replace piston rings. (Generally not a DIY job)
  4. The engine's valve seals may be worn.
    The Fix: Replace valve seals. (Generally not a DIY job)

Jun 01, 2010 | 1989 Buick Electra

2 Answers

I have a 2003 ford expedition it smokes sometimes when i crank it what could be the cause of this the smoke is blue

blue smoke is oil possible worn or damaged component in head-usual problem is valve seal or worn valve guides -pull and inspect the spark plugs look for which one[s] is fouled or oil soaked that will narrow down where ur problem is

Mar 09, 2010 | 2003 Ford Expedition

1 Answer

92 Camry with smoke and "shuttering"

Blue smoke means oil is being burned
do a compression check

May 02, 2009 | 1991 Toyota Camry

2 Answers

Infiniti FX 35 stiff ride

The FX is a bouncy car, but it's necessary to accommodate it's good performance. You can try some aftermarket air shocks, or check into different tires. That should help.

May 18, 2008 | 2003 Infiniti FX35

Not finding what you are looking for?
Cars & Trucks Logo

2,683 people viewed this question

Ask a Question

Usually answered in minutes!

Top Infiniti Experts


Level 3 Expert

85239 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14842 Answers

Are you an Infiniti Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides