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Thread: Burning Oil fix.

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    Sr Member Flagrum_3's Avatar
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    Default Burning Oil fix.

    Just a FYI post;

    Okay I've heard many people talk about the 2.3 becoming an oil pig, being a terrible engine etc. Well recently I started experiencing a loss of oil at a rate of about 2+ litres between 8k oil changes, where before that, I had zero noticeable loss.

    I am presently at 332,000 Kms on my 2.3 NA engine.

    After much thought and discussing the issue with several mechanics which I work with, I concluded it could be simply the PCV valve.

    So I changed out the PCV and It was not an easy task, as the intake manifold needs to be removed plus other things to get to it. It was well worth it though, as since the change I've put 3000k on her and no noticeable oil loss whatsoever, checking at 500km intervals. The engine runs smooth as always.

    So point of the post is; Don't condemn your engine to quick for loosing even a substantial amount of oil right off the bat, as it could be a relatively easy and cheap fix.



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    Mr Wilson (10-22-2018)

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    Sr Member RedRaptor's Avatar
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    Default Re: Burning Oil fix.

    My 2.3L with 406,000km starts burning oil after 5000+km of an oil change. I usually have to put in 800ml to 1L to top it back up to close to the MAX level on the dip stick.

    Already had my PCV replaced last year.

    Hope this works out for you and you keep running it to 500,000km!
    2004 Mazda3 Sport GT|Winning Blue| OG 2.3L @ 400,000+ km

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    Default Re: Burning Oil fix.

    Thanks for the info. 260 on my 2.3 and currently doesn't burn a drop. Hopefully get a good few more years out of the car. I've heard the PCV valve is a pain

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    Sr Member Flagrum_3's Avatar
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    Default Re: Burning Oil fix.

    Quote Originally Posted by RedRaptor View Post
    My 2.3L with 406,000km starts burning oil after 5000+km of an oil change. I usually have to put in 800ml to 1L to top it back up to close to the MAX level on the dip stick.

    Already had my PCV replaced last year.

    Hope this works out for you and you keep running it to 500,000km!
    Well I know I'm not out of the water yet, that's why I'll be keeping a keen eye on it till my next oil change. But the fact I haven't lost any yet is a positive sign. I'll post on here again when I reach the 8k point.

    I doubt I'll have this car till 500,000k with the way I'm putting kms on her recently, as I don't do much long distance highway anymore and the fact I'm planning on getting something new in 3 years or so. I'll be lucky to get to where you are now in mileage, lol.

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    Default Re: Burning Oil fix.

    Quote Originally Posted by jeff7670 View Post
    Thanks for the info. 260 on my 2.3 and currently doesn't burn a drop. Hopefully get a good few more years out of the car. I've heard the PCV valve is a pain
    It is a bit of a pain, especially one of the lower bolts on the manifold is a biatch, but like I said its worth the effort if it solves the issue and adds a few years of life to the car.


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    Default Re: Burning Oil fix.

    just curious, what oils do you guys use? 0W30 synthetic has worked well to combat burning and good for long oil change intervals
    2005 Mazda3 SP23 hatchback (auto)
    2016 Mazda3 Sport GT (auto)

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    Default Re: Burning Oil fix.

    Quote Originally Posted by TheMAN View Post
    just curious, what oils do you guys use? 0W30 synthetic has worked well to combat burning and good for long oil change intervals
    Been using 0w30 since warranty was up. My oil loss just started occurring maybe 6 months ago, with well over 300k kms on her.



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    Default Re: Burning Oil fix.

    Damn I'm still on 5w 20 but only at 123K... I have lots of ways to go before I reach to you guys. Keep us posted Flagrum_3!
    2008.5 Metropolitan Grey Mica Mazda 3 GT Hatch with Luxury Package DONE: OEM LED Side Mirror Turn Signals | TM3 Decals / Plates | Axela Badge | 3M Scotchguard Film on Front Hood / Fenders | Solarguard Quantum Tints 37% Front 28% Back | Flipkey | JDM Rainguards | MS3 Rear Valence | Super White LED Interior / Trunk / License Plate Lights | Smoked LED Sidermarkers | Powdercoated Blue 18" OZ Ultraleggera Rims | Michelin Pilot Sport AS+ | Blue Calipers with Gunmetal Axela Decals | HID 6000K/3000K with Yellow Film Fogs | Hella Tones | Rally Armor Mudflaps | Powdercoated Gunmetal Xenon Expert Aluminum Pedals | Clear Reflectors | Carbon Fibre Rear Emblem Insert | Redline Elite Hood Lifts | Cross Drilled Rotors with Hawk HPS Pads | CP-E Tow Plate | Her: 2012 Sky Blue Mica Mazda 3 GS

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    Default Re: Burning Oil fix.

    Quote Originally Posted by TheMAN View Post
    just curious, what oils do you guys use? 0W30 synthetic has worked well to combat burning and good for long oil change intervals
    Mobil1 5W-20 with Mazda OEM filters [Spin On Converted] for the majority with Started using Extended Performance (Gold Cap) two years ago when it became available in Canada.

    Oil loss is noticeable after 5000km on an oil change interval.

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    Default Re: Burning Oil fix.

    Quote Originally Posted by RedRaptor View Post
    Mobil1 5W-20 with Mazda OEM filters [Spin On Converted] for the majority with Started using Extended Performance (Gold Cap) two years ago when it became available in Canada.

    Oil loss is noticeable after 5000km on an oil change interval.
    Do you check the dip stick or when you drive you notice something is wrong? I plan to drive mine to the ground

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    Default Re: Burning Oil fix.

    Quote Originally Posted by Ogata View Post
    Do you check the dip stick or when you drive you notice something is wrong? I plan to drive mine to the ground
    he would check the dip stick.
    ​A lion would never cheat on his wife, but a Tiger Wood.

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    Newbie G ~ MINI's Avatar
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    Default Re: Burning Oil fix.

    No noticeable oil consumption on my 2012 2.0L with 291,000 km and have been on 0w20 and oem filter ...just started using the K&N Performance Gold which flow better and clean better ....
    Just read that oil consumption happens due to valve stem seal failing and piston rod bearing starting to wear and fail ...not sure if its the same for 2.5 and 2.3L

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    Default Re: Burning Oil fix.

    Update; Near half way point till next oil change, and still no noticeable oil loss.

    Keeping fingers crossed.


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    Last edited by Flagrum_3; 12-12-2018 at 02:15 PM.

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    Default Re: Burning Oil fix.

    Thanks for the update. Sooner or later I will have to do mine.

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