Toyota Yaris 1NR-FE engine oil consumption, cause and solution!

This engine series are known for excessive oil consumption, even when regularly serviced. Here we look at the problem and a proved solution for this.

[@StefanosKapiris]

I have had the same problem and semi solved it with AtomEx Total Flush and the spray Verylube Anticarbon. Now the oil consumption is about 100ml/1000km. The appropriate solution to this problem is what this video describes. But I didn't want to spend that much money for a 13 year old car, so I did the "patch" solution by trying to remove the burned oil from the jammed piston rings.

[@amtperformance7072]

You are right my friend. The oil control ring clogs and causes these problems. What you did is the right thing if you dont want to spend the money. Thanks for the comment.

[@EMTB.Kefalonia]

Στέφανε τι διαδικασία ακολούθησες με αυτά τα χημικά? Καλημέρα.

[@StefanosKapiris]

@@EMTB.Kefalonia Καλημέρα. Βάζεις το υγρό AtomEx Total Flush στο λάδι σαν να συμπληρώνεις λάδι και κάνεις 200km ιδανικά σε 1 μέρα. Έτσι καθαρίζεις το δαχτυλίδι λαδιού (3ο δαχτυλίδι). Μετά πας κατεθείαν για αλλαγή λαδιών. Εκεί ο μηχανικός θα πρέπει να αφαιρέσει τα μπουζί και να ρίξει μέσα το σπρέι Verylube Anticarbon. Το αφήνει 15 λεπτά και γυρίζει η μίζα χωρίς να έχει βάλει τα μπουζί. Τα πιστόνια πετάνε προς τα πάνω τη μούργα που έχει ρευστοποιηθεί.

[@StefanosKapiris]

Αυτή η λύση ονομάζεται καθαρισμός με Xado. Ωστόσο είναι η value for money λύση. Μετά από μερικές χιλιάδες χιλιόμετρα μάλλον θα αυξηθεί παλι η κατανάλωση και θα πρέπει να επαναληφθεί η διαδικασία, η οποία οστώσο είναι φθηνή και γρήγορη. Η σωστή λύση είναι αυτή του ρεκτιφιέ που περιγράφει στο βίντεο αυτό ο AMT performance.

[@רחלי_המקורית_פה_חברס]

Which chemical Except Verylube Anticarbon also can help, in Israel i didnt find it​@@amtperformance7072

[@gerhardjanen7583]

This is a modern engine that is designed to save fuel by reducing friction between the piston and cylinder. Piston rings with low tension are used. The only thing that is not right about this design are the users who think that this modern engine can be driven like an engine from the 80s, oil change intervals are too long, and unsuitable oils are used. The oil in my Yaris is changed every 10,000 km. The engine uses no oil until the next oil change.

[@android3vic3]

thank you! on your YARIS which brand and type you use? 0w20 or 5w30? i would like to give a try. thanks

[@amtperformance7072]

All you say is correct. But the oil control ring design in these engines are prone to clogging and not let the oil return. Toyota fixed that in the newer versions of these engines and the problem was solved.

[@android3vic3]

@@amtperformance7072 καλησπέρα σας! μπορείτε να μου πείτε Ελλάδα που είστε ή κάποιο link ή τηλ επικοινωνίας παρακαλώ? ευχαριστώ

[@motheolebelo]

Very informative video My Auris has the same engine and currently it has clocked 259 000km. Oil consumption has not reached the excessive stage needing a rebuild and that is because i change oil every 5-7000km which is what has helped to keep the motor running well. I literally just finished helping my neighbor service his Corolla with the same engine. The engine is in a poor condition as it smokes and owner mentions that it consumes a lot of oil. He has continuesly been topping up the oil and not changing it. He has neglected the engine by not changing the oil on time.

[@amtperformance7072]

You are right my friend. Changing the oil soon will keep the engine as good as it can. Neglecting it and you have your neighbour's example of an engine. Oil is the engine's life. And it is so much cheaper ylthan a full rebuild. Thanks for the comment!

[@FreeKanal]

I remember similar problem in Toyota avensis from 2002, not exactly oil control ring was the problem but Toyota drilled only 2 holes in piston instead of 4. You had to disassemble whole engine to make 2 or more little holes so the oil could go through and oil consumption problem was solved. Little details that seems toyota forget often.

[@amtperformance7072]

You are right about the two holes in the ring land. But also the oil ring design itself was not allowing much of the oil to return to crankcase. The best way to solve the problem( given that you have reached so deep in the engine) is to change the pistons and rings with newer design like them shown in the video. Thanks for the comments!

[@FreeKanal]

@@amtperformance7072 I had this problem in my previous car. Now i got Auris from 2012/13 1.33 VVti (1NR-FE) and i use amsoil 0w20 with detergent base based on magnesium not so on calcium it is more expensive oil but it keeps engine clean. For now i got no oil consumption problems but it is only 80`000 km. For now everything is ok, hope it will stay this way :) I change oil every 15 months (i do less than 7`000km and i checked oil sample in the lab that is why i change it every 15 month not 12)

[@soru-gp8hy]

I have a MK1 2012 Auris 1.33 with this engine. I bought it 7 years ago with 160.000 km. The owners wanted to get rid of it due to high oil consumption. They even put 10W40 oil in the engine. I did a full service and put quality 5W30 fully synthetic oil in the engine. It is still running, it just passed 260.000 km, oil consumption is always around 0,5 litres per 15.000 km. Now I started doing oil changes early, every 10.000 km. I use Mannol engine oil specific for Toyota engines.

[@amtperformance7072]

10w-40 is not recommended for this engine. Except if you live in africa with tempratures over 45 celcius. 15000 km is not ideal especially for an engine of this mileage. Better stay at 10000 and you are good to go!

[@FreeKanal]

Why not recommended 0w20? I use amsoil 0w20 with high detergent content based much more on magnesium than calcium to keep engine clean inside. Most engine oils use calcium as a detergent base for keeping engine clean, but calcium leave a lot of deposit. Have same car 2012 Auris 1.33 VVTi. I have no oil consumption problem at all but i only have 80`000km.

[@amtperformance7072]

@@FreeKanal the oil you use is very good quality oil. But because it contains much magnesium it is not legal in europe. At least in many countries it is not even imported. The 0w-20 viscosity is good for colder climates. All engine manufacturers state some different viscosities according to the climate. From my experience i can say that the use of the car have significant role on the oil you use and the change intervals. So don' stick blindly to the manufacturers recomendations.

[@FreeKanal]

@@amtperformance7072 I agree i always do oil checks sending samples to the lab i dont trust manufactuer recomendations :P I live in Poland Amsoil is available here. I prefer 0w20 because i do mainly short distance trips and want that oil to reach head of the engine as fast as possible.

[@ŞakirCan-p5d]

Thank you for this video and your understandable language. Respect

[@shalva2352]

Very good video. Thank you. 🎉

[@yucelaktas3626]

Komsu nice video thank you👍

[@ash-cn2oh]

I read this was a problem with earlier versions of this engine, before Toyota fixed it. Sorry don't remember the source. I change the oil once a year which is after 10000 km and I hope my pistons are not as dirty as in the video.

[@radegast2353]

Greetings from 🇷🇸 my friend

[@Mghanabro]

Use correct oil 0w20 regular oil change and u should b ok

[@lawrenceralph7481]

Thanks

[@cp.k6273]

Hello my friend i have a question. How much does it cost to clean the engine like that with new pistons and stuff? Thank you for the video

[@amtperformance7072]

@@cp.k6273 hello! For this kind of job with all the new components ( oil and water pumps, timing components, bearings, pistons, machine shop and labour) about 2000€

[@cp.k6273]

@@amtperformance7072 thanks for replying. Do you have a email? I might be interested

[@medlamineb7874]

thank you very much for your video and advice. here I have a toyota yaris year 2012 engine 1nr-FE in 2019 I changed the brand of engine oil, just after I noticed a drop in the oil level in the dipstick. So I didn't put the usual oil back in but rather changed the brand of oil without being able to solve the problem. Currently my engine consumes 1.25 liters per 1000 km. I have a spark plug on all four which is soaked of oil but I drive normally I even make journeys of 150 to 200 km. Do you think the cleaning and decarbonation product cited by one of the comments can correct my oil consumption; to save me the costly overhaul of the engine.

[@amtperformance7072]

Hello! Yes these products can clean some of the carbon and decrease the oil consumption. It will not fix things but you can postpone the engine overhaul for some time.

[@amdsquad]

Nice informative video. Do you know if this was resolved in 2017 model 1NR-FKE ?

[@amtperformance7072]

The 1nr-fke is equiped with redisigned piston rings and i believe that the problem is solved. I haven't encountered the known problem on these engines. Maybe not yet...😆

[@arrarr-q4n]

Καταπληκτικο βιντεακι. και μπραβο παιδια!Πως μπορουμε να επικοινωνησουμε μαζι σας?Τηλ ή mail?

[@amtperformance7072]

Ευχαριστουμε πολυ! Στο [e-mail] μπορειτε να επικοινωνισετε μαζι μας.

[@LA_Commander]

The Toyota Yariz is actually a Mazda 2 but rebadged.

[@GaryTheRCcar]

source?

[@LA_Commander]

@GaryTheRCcar the Toyota dealership which told me so

[@damiancostaalvarez5551]

What is the reference of the pistons?

[@kaki868]

Hello. I have same model 130,000km. It has excessive oil consumption for an year. Most likely its these rings. Even in toyota garage they told to use 10w-40. We live in hot country. Most of summer it is 35c+ and reacez to 45. It help to reduce the consumption. How can i check that the problem in these rings and not something else?

[@amtperformance7072]

@@kaki868 Hello. Unfortunately the compression test will not help to locate the problem. Maybe a leak down test will help you see the sealing of the cylinders but maybe not. Because the first 2 rings may not be worn enough to show a significant reading. It will show you the condition of the valves and if everything is close to speifications then the only thing that can cause so much oil consumption is the oil rings.

[@StefanosKapiris]

Could you please also comment on the root cause of the problem? Is it because thinker oil than 0W-20 was used? What oil viscosity are you using after the repair?

[@amtperformance7072]

The oil control ring design is prone to clogging if oil change intervals are not often. Thinner oil can postpone the problem but then you will have oil consumption because the compression rings are low tension so thinner oil can bypass them.

[@Like-xw1ph]

The problem is simply that a lot of dealerships put in the 5w30 oil. And if you go shorter distances especially in colder climates then this happens. There would be no problems if you change the oil every 8k kilometres and use the 0w20.

[@ΤάσοςΚατσόγεννας]

Καλησπέρα...... Όταν λες ότι τα ελατήρια είναι χαμηλής έντασης τι εννοείς; έχουν πέσει λόγω φθοράς; ​@@amtperformance7072

[@derpy_kirby9239]

Hello! I'm thinking of buying a used Scion iQ which uses this same engine. Is there some way I could easily detect if the car has defective piston rings before purchasing it without needing to take it apart?

[@amtperformance7072]

@@derpy_kirby9239the later models aIQ after 2009 was equipped with the revised rings from the factory. So check what model is the car you want to buy. Other than that unfortunately you cant determine what rings are on the pistons.

[@hishamelshoni7235]

How much will u charge for a 2010 lexus gs350 AWD?? To change the pistons with new rings???

[@tianhxu]

how much does this cost to rebuild? when was this problem resolved?

[@kazifaiz]

Same toyota problem with 1zrfe :( but not sure about availability of oversize piston for that sadly

[@ibiro868]

That part is a baffle and stops noise from coolant

[@amtperformance7072]

Yes it is a baffle that in the technical manual of the engine states that it is used to concentrate more coolant to the top of the block towards the cylinder head. I dont know about the noise but other toyota engines like 4zz or 1sz witch have similar block dont have this part.

[@mridware9694]

I have same model with 200,000 km and consume 1 litre after 4000 km and the reason is design failure of PCV valve

[@amtperformance7072]

The PCV valve can be a reason for excessive oil consumption. But it is very easy and inexpensive to fix. The main reason is the design of the oil control rings. I have seen it too many times on these engines.

[@hanscruz9613]

Where can I buy pistons with better rings for toyota 1NZ-FE? same problem, oil consumption.

[@amtperformance7072]

The machine shop i work with bought them. The brand is TEIKIN. I can find the serial number if i ask them. I will send you when i have it. Thanks!

[@hanscruz9613]

Thank you very much.

[@3bood.m196]

I have a question. Please, do you prefer this engine or the Corolla 1zr engine?

[@amtperformance7072]

The 1zr-fe is more reliable in long term. It is equipped with better pistons and generally lasts longer with the regular maintenance.

[@3bood.m196]

Thank you brother. This question was really confusing to me

[@ZoKtorR]

Do you suggest blocking the EGR pipe to this engine?

[@amtperformance7072]

If the EGR valve works correctly i dont recommend blocking it. Eventually it will cause other problems. Blocking it is a temporary fix.

[@ioandoicanionus3371]

My Yaris has 177 tkm, no oil consumption ! Oil change every 7000 km, 15w30 Ravenol !

[@billlll23]

Καλησπερα. Για το συγκεκριμενο κινητηρα, αυτο το πραγμα που μπαινει μεσα στο water jacket υπαρχει περιπτωση να μην υπαρχει σε καποια εκδοση αυτου του κινητητρα? Γιατι οταν ανοιξαμε τον δικο μου κινητηρα,αυτο δεν υπηρχε μεσα, όμως επειδη τ αυτοκινητο ειχε ανοιχτει απο τον προηγουμενο, υποψιαζομαι πως ισως να το ειχαν ξεχασει να το βαλουν. Να σημειωσω οτι ο κινητηρας μου ανεβαζει τη θερμοκρασια ελαχιστα στις ζεστες μερες κ στις υψηλες ταχυτητες στ κιβωτιο, και ενω προερχεται απο ολικη επισκευη δεν μπορω να βρω τι φταιει. Υπαρχει περιπτωση λοιπον να ανεβαινει η θερμοκρασια επειδη δεν υπαρχει αυτο το αντικεμενο ?

[@amtperformance7072]

@@billlll23εγω δεν εχω συναντησει να μην υπαρχει τουλαχιστον σε 4ZZ. Το 1ZZ δεν το εχει π.χ. οσο για την θερμοκρασια που λες δεν το αποκλειω να φταινει αυτο αλλα το θεωρω λιγο δυσκολο. Ελεγξε το ψυγειο σου και το θερμοστατη. Αυτα ειναι πιο πιθανες αιτιες.

[@playstation2bigs]

Using Amsoil oil or Mobil 1 at first 10 km only will avoid this oil consumption?

[@amtperformance7072]

The best way to postpone the excessive oil is to change it every 5000km. That way it will last way longer but eventually the problem will appear, even after that.

[@playstation2bigs]

@@amtperformance7072 this 2023 Toyota's newer NR engine have revised or replace the piston and piston rings to prevent oil consumption?

[@razvancioroiu9409]

Hey! Which part of Greece is your shop located? Thank you!

[@amtperformance7072]

Hello. We are in Crete. Why do you ask?

[@EMTB.Kefalonia]

I do replace the oil every 7000 km by my self . I bought it second hand with "62000". After 100000 km I have the exact same problem like all these 1nr-fe in this fucking planet. I was looking through the web and someone mentioned that Toyota has a repair kit with new pistons and springs. Why did you install "bigger" pistons?

[@amtperformance7072]

These engines are known for this problem. Other Toyota engines have the same. I installed bigger pistons cause the bores had 0.002 wear. It's not a big deal but i wanted a fresh install.

[@playstation2bigs]

What oil you using fully synthetic oil ?

[@amtperformance7072]

Yes fully synthetic. In hotter climates use 5-30 or even 10-40, according to the mileage also.

[@edstonpesito9199]

Sir, where can I find the engine block coolant petcock or drain plug in 1 nrfe? Thanks!

[@amtperformance7072]

You need the petcock as a part or the location of it on the block?

[@siniteanrazvan3298]

When did Toyota solved this problem, i was looking for a 1.33 101hp 6 speed 2009-2011 yaris, is this a real common problem on those cars?

[@amtperformance7072]

Yes! The engine on the video is from a 2010 yaris. In 2009-2011 the problem is really common. But if you find a low mileage car or one that has been rebuild properly, with correct maintenance you should keep it problem free for a while.

[@siniteanrazvan3298]

@@amtperformance7072 fck i really try to find a city car that has low fuel consumption and great reliability but can rarely go on highways and this was pretty much the perfect car since now 😂😂😂

[@amtperformance7072]

@@siniteanrazvan3298 It's not like it will burn oil right away. You can check it at a mechanic who knows where to look. There is ways to find the condition of the engine without tearing it down.

[@siniteanrazvan3298]

@@amtperformance7072 yeah, that's for sure, I think I'm not gonna be staying on this car for more than 2-3 years with maybe 10k km/year at most, in city like 75% or even more

[@siniteanrazvan3298]

@@amtperformance7072 do you have any idea if the 1.0 is more reliable?

[@MrMaramba]

hello do you have a part number for the pistons is it from toyota?

[@amtperformance7072]

Hello. The pistons are Teikin. They are made for toyota 1NR engine so all the dimensions are correct. I will ask the machine shop for the exact part number and give it to you. Thanks.

[@dreamsgate87]

Is it same for the 1kr engine too ? there is a ticking sound after a spun bearing in my car which is fixed. Any ideas?

[@amtperformance7072]

Yes it is the same on 1KR especially the second generation i think. A spun bearing is almost always low oil pressure or too much mileage on the same oil. How is it fixed? Maybe the problem is elsewhere and not just the bearing.

[@dreamsgate87]

spun bearing is fixed by a mechanic but the ticking noise I am supposing is different especially when I am on low rev range it occurs substantially @@amtperformance7072

[@XD3217]

My Toyota iq with this same 1nr fe have the same problem 😢

[@amtperformance7072]

How frequent you change the oil and what type you use? Also how much mileage has the engine?

[@AsenathiSirayi-yx6ng]

Hello sir . Im driving a Toy Corolla 1NR motor . The machenix just done overhauled it and is done now the problem is when you start it show on but doesn't want to start. Clutch pedal pressed but still start nothin . Seems like no elec

[@amtperformance7072]

Is the starter motor cranking the engine or is it dead?

[@AsenathiSirayi-yx6ng]

Dead no sound . When he makes a wire from a starter 2 a battery it starts engin run perfectly. But steering is hard to turn no lockin system windows ain't workin n can't start by IGN.

[@amtperformance7072]

@@AsenathiSirayi-yx6ng I suspect some connector is not connected to the main relay-fuse box in the engine compartment. Check again all the connectors. There is a main power cable from the + terminal of the battery to the starter motor and the main control box. Check this also. I'm sure that the system is not charging the battery also.

[@AsenathiSirayi-yx6ng]

Thanks sir .

[@hanscruz9613]

Brand of those pistons?

[@amtperformance7072]

The pistons are TEIKIN. This brand have specific pistons for the 1nr-fe with redesigned oil control ring. I have used them many times with good results. As for the serial number i didnt keep the last box so i dont have it.

[@panosskliros6646]

Καλησπέρα φίλε έχω το ίδιο πρόβλημα είσαι Ελλάδα?

[@amtperformance7072]

Καλησπερα. Ναι Ελλαδα ειμαι!

[@falalass]

Πόσο στοιχίζει η επισκευή περίπου? Βάζω 10#40 λάδι και έχω κατανάλωση περίπου 2 λίτρα στα 6000χλμ. Να επιχειρήσω να του βάλω 5#30 ή θα το καεί σα το νερό το λάδι?

[@stevengriffin7873]

The sump only holds 3.7 litres that's insane.

[@miggaki]

Καλησπερα εχω το ιδιο προβλημα και εγω στα 3000 χλμ 1 λίτρο λαδι πόσο κοστιζει περιπου η επισκευη που διξατε ευχαριστώ εκ των προτέρων

[@amtperformance7072]

Καλησπέρα. Η συγκεκριμένη επισκευή άγγιξε τα 2000€ μαζι με σετ συμπλέκτη. Ορισμένα εξαρτήματα αλλάζονται προληπτικά σε τέτοιες περιπτώσεις.

[@miggaki]

@@amtperformance7072 ευχαριστώ πολύ για την πληροφορία σας

[@1robbies6]

So if I do this job, there will be no more problems with oil consumption? Even after 70-80 thousand kilometres?

[@amtperformance7072]

I have rebuilt quite some of these engines and yes the problem is solved. One of them have almost 160k on the clock after the rebuild without any problems. Of corse you should not neglect to change the oil at 10k or more frequent. It is much more cheap than engine overhaul!

[@1robbies6]

@@amtperformance7072 thank you for answer. We bought a car in a condition like that

[@sibuleleiori2235]

Where is part two of the video

[@amtperformance7072]

Unfortunately the memory card i filmed the whole assembling was busted and i lost all of it before i transfer it on the pc.

[@sibuleleiori2235]

@@amtperformance7072 man sorry hope u make a new plan 👍 but good video loved it 👍👍

[@yky1526]

​ You can try send it for data recovery

[@nikospar.100]

Γεια χαρά! Μπορω να βγαλω τον 1,33 και να βαλω τον d4d?

[@amtperformance7072]

@@nikospar.100 Ναι γινεται. Απλα χρειαζεσαι μοτερ σασμαν (γιατι του d4d ειναι πολυ μακρύτερο) πλεξούδα και εγκέφαλο. Στην ουσία χρειαζεσαι ενα τροπετο για να παρεις ολα αυτα τα εξαρτήματα. Δεν νομιζω οτι σε συμφέρει. Καλητερα πούλησε το και παρε ενα εργοστασιακό d4d.

[@nikospar.100]

Να του βάλω αέριο lpg? Έχω κ εγώ το πρόβλημα.

[@amtperformance7072]

@@nikospar.100 Αν εχεις το προβλημα και του βαλεις υγραεριο σε 2-3 μηνες το πολυ θα χρειαστει να λυσεις μοτερ.

[@EMTB.Kefalonia]

Ρε Έλληνας είσαι????

[@amtperformance7072]

Ναι!!

[@EMTB.Kefalonia]

Που βρίσκεσαι? Έχεις σελίδα στο ίντερνετ?

[@amtperformance7072]

Κρητη ειμαι. Δεν εχω σελιδα οχι. Αν θελεις καποια διευκρινηση ρωτα.

[@EMTB.Kefalonia]

@@amtperformance7072 είσαι μακριά 🤦. Αυτή η επισκευή τι λεφτά παίζει? Είναι ακριβά τα καινούργια πιστόνια με τα ελατήριο?

[@amtperformance7072]

@@EMTB.Kefalonia Η τιμη για τα πιστονια ειναι στα 350 περιπου μαζι με ελατηρια.