Car excessively burning oil?

Is your car excessively burning oil?


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FLtrackdays

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Just as another input here, I agree with you. People stating a quart every 1k miles are insane. I’ve never had a car, over 25 years, consume oil like that unless something is wrong with the engine. I even currently own two vws.

I have a 2020 Supra and even after 17 track days, I have no noticeable Oil consumption between oil changes.

I had a 650whp Evo and also had no noticeable oil consumption until I had a burnt piston ring. Fixed that and no more consumption.
Guess I’ve been more unlucky than most. My RX8 drank oil but that was a known use issue for the rotary engine. I still enjoyed the car immensely on track. Other cars I’ve tracked never used that much but they did require more than usual.

Update: 5k miles, lots of tracking, no additional oil needed. Maybe my car is broken…. 😜
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Heavy Foot

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I've been keeping a close eye on my consumption, and I've driven almost 5,000km's(3,000miles) since my oil change and I'm still full. The consumption has slowed down as the miles rack up. My car is sitting at 25,000kms (15,500miles). Someone else on this forum had the same scenario, after about 12,000miles the consumption just slowed to a snails pace.
 

humblemoto

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For posterity, ‘21 A91 with almost 30,000 miles and I go my 5,000 mile oil change intervals with very spirited street driving while stock with no measured oil loss.

Folks balking at 1qt/1,000 miles weren't around for the S85. (Wish I broke mine in myself)

Knowing its a touchy subject as far as engine break-in, I do neither extreme that I hear others do.
Manufacturer’s recommendation tend to be too conservative, they factor the entire drivetrain when they say 400-1200 miles lower revs, lower load. They can’t have the liability of something catastrophic happening from a bad QC.

Some folks drive it like they stole it immediately, I’m closer to this camp and have owned varied high performance and high mileage engines. I just don’t do it abusively. The critical first few startups will see the most wear and any time the engine isn’t at operating temperature of course.
From my experience after the engine is warm regardless of miles it should see full load and full spectrum of revs to pressurize rings for proper bed-in. Of course this can be done sensibly without taking out anger on the car. All my NA engines and FI engines get the same first heat cycles and usage and a quick oil change.

My opinion is worth the time it takes to read so to each their own, anyone under the 1,000 mile mark that thinks babying the car is helping it last longer may not appreciate the tolerances and materials engineers spec for engines.
Irregardless of miles/hours on an engine or transmission great care should be given until up to operating temperatures, after that trust the engineers and programmers to keep it within its own safety thresholds! <3
 

Branflakes123

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I've been keeping a close eye on my consumption, and I've driven almost 5,000km's(3,000miles) since my oil change and I'm still full. The consumption has slowed down as the miles rack up. My car is sitting at 25,000kms (15,500miles). Someone else on this forum had the same scenario, after about 12,000miles the consumption just slowed to a snails pace.
What was the level at in MM? The range on the head unit for "Max" is pretty wide so it doesn't tell you too much in terms of consumption.
 

raiu

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Yup. You don't "beat" on it, but you allow the car to fully warm up, let's say 10 minutes or so of careful driving, low loads, short shifting, etc. Then on an on-ramp you give it full throttle through a few gears. Let's say 2nd, 3rd, and 4th. Then on the interstate itself you cruise, going through all the gears, just letting everything cool down for a few miles. Then maybe another 3rd or 4th gear pull before you get off an exit and using manual downshifts, do lots of engine braking. Then get back on the interstate the other way, and do the same thing. Then cruise gently back home, let everything cool and settle down before you park it and shut it off. Do that a few times and everything is nicely seated and broken in. I've done this method with every new car I've owned and I've never had an issue with any engine. Inline 4 turbo, inline 6 turbo, boxer 4 turbo, rotaries, V6, all have been perfect from buying to selling.
In a few cases, I've gone up in oil weight. Supra has 5W-30, my rotaries got 5W-30, and my boxers 5W-40.
you must have very slippery underwear ;)
 

raiu

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Yeah that's not normal, IMO. I'm beating on my car every time it's out of the garage and I've only had to add a quart in about 7k miles, but I've also had an oil change in there around 5k. I added the quart at about 3k miles which I would expect during break-in and is consistent with other BMWs I've owned. The car has had some track time as well. I'd say whatever eventual TSB we'll supposedly see from Toyota will likely apply to your car with that kind of "burn" rate.
how did you break in your car?
 

starman

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So far I'm still at Max oil level. I have a 2021 at 3,000miles (only mod is catback exhaust - stock everything else and stock tune).

Driving habits: Did one track event and aggressive driving one weekend in the mountains. Other than that I drive it easy in the city.

I met a guy with a totally stock 2021 with 8,000+ miles he bought brand new last year. He had never heard of oil consumption issue when I asked him about it; he said he never got such a message. Only thing he did was that brake recall issue.
Update 2: I am pleased to announce that i've had the car for 1 year now and 6,000 miles. Did another track event this spring, added AA Catted downpipe in the winter, and to this date still no low oil error.

Before the first oil change, recently performed at Toyota dealership with OE 0w-20 oil weight, it had only burned 1/4 of oil, perfectly normal, especially during track event.

I drove it a little hard during mountain runs after the oil change a week later and still at max levels. 😁
Update 3: It's been a Year and a Half now with the car, I'm now at 8,000 miles (I've only had the one oil change from Update 2 in the Spring of 2022) and I have yet to see a Low Oil message. Still at Max level too!
 

raiu

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Update:

I have a 2023 and it started showing oil consumption issues @ 2250 miles after an oil change

I used Liquimoly Top Tec 4600 5W30


334833969_599703258313716_8930286261468117168_n.jpg


334906936_3430571860535379_9171797792128057345_n.jpg


Not sure if this is 'normal' consumption or if this requires some investigation
 

32bitsofGil

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Update:

I have a 2023 and it started showing oil consumption issues @ 2250 miles after an oil change

I used Liquimoly Top Tec 4600 5W30


334833969_599703258313716_8930286261468117168_n.jpg


334906936_3430571860535379_9171797792128057345_n.jpg


Not sure if this is 'normal' consumption or if this requires some investigation
Totally normal. Call me when you burn 1qt or more in 1000 miles
 

32bitsofGil

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How do you define 1qt? Is the difference between max and min = 1 qt?
No, the car starts with almost 7 quarts. It needs to burn at least 1.5q before it shows the minimum oil level message. It’s a fail safe to prevent the user from overfilling the engine.
 

raiu

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No, the car starts with almost 7 quarts. It needs to burn at least 1.5q before it shows the minimum oil level message. It’s a fail safe to prevent the user from overfilling the engine.
So in other words, it's probably burnt only ~0.375-0.5 quart (according to the max min indicator) so far?

Is burning this much oil normal for the car 2k miles in? It seems like my FBO, flex fuel STI burns around the same and that's heavily modified + tuned. My Supra is stock.

How could I prevent my Supra from burning any oil or close to mitigating all of the current consumption? Would the Verus AOS do the trick?
 

32bitsofGil

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So in other words, it's probably burnt only ~0.375-0.5 quart so far (according to the max min indicator) so far?

Is burning this much oil normal for the car 2k miles in? It seems like my FBO, flex fuel STI burns around the same and that's heavily modified + tuned. My Supra is stock.
Totally normal behavior. It will always burn a little. BMW says it’s supposed to eat 1q every 1500 miles basically.

don’t add oil to the engine until the car tells you too. Don’t overfill.
if you notice having to fill a few times between oil changes that’s fine. If you fill 4-5 times between changes it is a sign of worse problems.
 

raiu

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It still seems a little excessive at 1600 miles and 1/2 a quart down on a brand-new engine.

What’s interesting is that on both current polls data is showing about 33% of voters reporting an issue. That means 66% are fine for the moment.

It has to be a bad production lot of rings, honed cylinders or rod bearings. That compounded with the water viscosity of the 0w-20 oil.

-RJM
Is that 0.5 quart? I thought the Max and Min line difference was 1.5 qts. If so, isn't that 0.75 quarts?
 

32bitsofGil

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Is that 0.5 quart? I thought the Max and Min line difference was 1.5 qts. If so, isn't that 0.75 quarts?
See his thread on ecutek oil level analysis
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