Consumer Reports finds some newer cars burn too much oil

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Ramses

Platinum Member
Apr 26, 2000
2,871
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81
There have been more than a few times over the decades that Euro car manufacturers have had to convince American customers that oil usage, even a fair bit, was "normal". And in retrospect it generally was normal, as none of the offending motors seemed to be bothered by it as long as they weren't run out of oil. Not to say a quart in 1K is any way acceptable, but Europeans were generally a bit more tolerant of such than Americans for whatever reason in years past. Quart, quart and a half every 3k wasn't unheard of, the fuel filler door used to have "check engine oil" stickers on a lot of em, and they weren't kidding.
 

thomsbrain

Lifer
Dec 4, 2001
18,148
1
0
That was not the case for me. I followed the break-in schedule. It was my wife's car, but she doesn't drive like a grandma. She doesn't go WOT to and from work, but she is not easy on it. Typically, it would see some WOT pulls when I'd drive. Mainly because the 4 cylinder is weak.

For that gen Honda Accord, it is known problem that Honda tried to hide well. I have heard they have started to rebuild more engines due to the problem. Ultimately, you buy a Honda for it to be reliable. That was not the case with this car.

Back to the topic - no car should burn excessive amounts of oil as compromise for better MPG.

Dang, that's a real bummer! :(
 

angminas

Diamond Member
Dec 17, 2006
3,331
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91
I have a 1999 Oldsmobile Alero with the 3.4L V6. 218k miles. If I keep the PCV changed, it uses no oil. A quart every 600 miles? Fuuuuuuuuuuuck that.
 

nerp

Diamond Member
Dec 31, 2005
9,865
105
106
I can't seem to detect any oil consumption in my 2012 Pentastar 3.6 with 60k on it. I have never added oil between changes.
 

Raizinman

Platinum Member
Sep 7, 2007
2,353
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91
meettomy.site
Using a 0w20 synthetic in virtually any new engine is not going to seat the rings. Thus oil consumption. I've taken many a new engine apart. My personal cars get 10w30 Non-Synthetic after the first 400 or 500 miles. When the odometer hits around 15,000 miles, I'll switch to 0w20 synthetic. I don't want a engine that uses oil, as it causes other problems with sensors later on. It's my car and I'll break it in anyway I want. I don't want oil consumption.
 

Ramses

Platinum Member
Apr 26, 2000
2,871
4
81
Using a 0w20 synthetic in virtually any new engine is not going to seat the rings. Thus oil consumption. I've taken many a new engine apart. My personal cars get 10w30 Non-Synthetic after the first 400 or 500 miles. When the odometer hits around 15,000 miles, I'll switch to 0w20 synthetic. I don't want a engine that uses oil, as it causes other problems with sensors later on. It's my car and I'll break it in anyway I want. I don't want oil consumption.


I've often wondered about modern oil and breakin periods. I tend to agree with your method unless there is some science to say otherwise. Breakin can have a huuuge impact on the performance and longevity of an engine over the long run.
 

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
A quart every 6k is nothing. A quart every 1000 is what my 2004 Forester did with 150k miles on it when I sold it.

A quart every 6-700 on a brand new luxury vehicle is going to piss off a lot of people.

Viper GTS

This.

Also, I may not be a mathematician, but how exactly does 10-15k oil change intervals 'work' with also burning a quart every <1000mi? :hmm:

smh
 

Yuriman

Diamond Member
Jun 25, 2004
5,530
141
106
This.

Also, I may not be a mathematician, but how exactly does 10-15k oil change intervals 'work' with also burning a quart every <1000mi? :hmm:

smh

Because you always have fresh oil in the engine. No need to change it so frequently.
 

BUTCH1

Lifer
Jul 15, 2000
20,433
1,769
126
A quart every 6k is nothing. A quart every 1000 is what my 2004 Forester did with 150k miles on it when I sold it.

A quart every 6-700 on a brand new luxury vehicle is going to piss off a lot of people.

Viper GTS


Yup, and one has to wonder what (if any) effect this will have on catalytic converter life. I'm sure they are designed with the fact that ICE's do burn some oil to varying degrees but a full quart every 600 miles?, that's nuts IMO. My 3.5L GM will burn one quart every 5K miles which I consider acceptable @96K miles. Then there's the added cost to consider, if you change at 6k intervals that's 6 quarts you have to buy and if it's expensive synthetic 6X6.50=$65.00. Not a fortune, but not chump-change either.
 

BUTCH1

Lifer
Jul 15, 2000
20,433
1,769
126
I have a 1999 Oldsmobile Alero with the 3.4L V6. 218k miles. If I keep the PCV changed, it uses no oil. A quart every 600 miles? Fuuuuuuuuuuuck that.


Check it frequently, although itself a sound engine, those were the years GM's had the lower intake manifold gasket issue. Many 3800's (which otherwise were almost indestructible) fell victim to that crappy gasket design.
 

BUTCH1

Lifer
Jul 15, 2000
20,433
1,769
126
I had a chevy blazer once that burned 1 quart a week.


When I was 16 my brother gave me a '62 Galaxy, it's compression was so bad you needed a running start to get up steep hills. I had to pull and clean the plugs every 2nd day, (luckily a straight-6 in '62 was easy to work on). My friends called me "Mr. fogger" as clouds of blue smoke constantly spewed from the exhaust LOL, I used to beg people for used drain oil to keep it going, it burned over a quart a day and that was just riding around town.
 

Vetterin

Senior member
Aug 31, 2004
973
0
71
I remember my 1980 Mercury Zephyr 200ci straight six that got around 250 mpq (MILES PER QUART)! Even funnier was the fact that that wasn't even the worst thing wrong with it.
 

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
Because you always have fresh oil in the engine. No need to change it so frequently.

Yeah, I guess so. The 'oil change' is really just a filter change because the oil gets refreshed 1-2x already during the change cycle.

That's just crazy...

Anything more than adding a partial quart during each oil-change interval is too much for a car <100k miles. Obviously things get a bit different for older engines, but adding a quart of oil 1-2x month on a brand-new car is insane....
 

Zorba

Lifer
Oct 22, 1999
15,183
10,739
136
My 2014 Forester with 24K, seems to burn about 1/2 quart every 7500 miles, which I am okay with. I just got back from Colorado where I did a bunch of high revs (both acceleration and engine braking), so I need to check to see if that increased the burn.

The 0W-20 oil is thinner than water. The first oil change I did it splashed out of the panel so bad it coated my entire face/neck/shirt with the initial surge. Now I hold the drain pan as close as possible to the drain plug until it starts flowing.
 

Demo24

Diamond Member
Aug 5, 2004
8,356
9
81
I'm not so sure its low weight oil being the problem. 11k on a new Mazda 3, ow-20, and it doesnt appear to be burning any significant amount (curiously 5k oil intervals though). Gti only has 1200 miles so its too early, but so far it's fine.

However, Hondas have been running lighter weight oils for many years without significant problems (overall at least). Moms accord uses I think 5w-20, has miles nearing 200k and is fine. I suspect my dad's crv also uses a similar weight, and his is going on 150k or so.

The bigger problem I could see is that if someone's Audi starts burning that much oil, they'd be empty well before the change interval. I wouldn't blame them for not checking initially as you don't think of new cars burning oil like that. But it seems like we'd be hearing of many engine failures due to this problem?
 

pauldun170

Diamond Member
Sep 26, 2011
9,141
5,085
136
Have a Mazda6
When we first got it it burned a quart every 2K.
Nowadays its about 1qt every 4K.
 

PricklyPete

Lifer
Sep 17, 2002
14,582
162
106
Had a '10 A4 and never had any significant oil burn up till we got rid of it at 50K. Now have a 2013 4Runner with the 4.0L V6. No noticeable burn either during the recommended 5K intervals with 0W-20 synthetic. At 42K miles now.
 

PottedMeat

Lifer
Apr 17, 2002
12,363
475
126
The magazine says that standards for certain Audi and BMW cars say that it's reasonable to burn a quart of oil every 600 to 700 miles.

lets say 20mpg
600mi/20mpg = 30 gallons of gas
1 gallon oil / 120 gallons of gas

maybe they'll hit 300mi/qt -> luxury 2 stroke :awe:
 

joutlaw

Golden Member
Feb 18, 2008
1,108
2
81
The bigger problem I could see is that if someone's Audi starts burning that much oil, they'd be empty well before the change interval. I wouldn't blame them for not checking initially as you don't think of new cars burning oil like that. But it seems like we'd be hearing of many engine failures due to this problem?

On our Honda, this was the same problem. The oil indicator light would flash under hard acceleration and on inclines. I checked the oil and the dipstick was bone dry. I'm sure Honda would blame the engine seizing on the operator because they ignore the oil indicator light.
 

tortillasoup

Golden Member
Jan 12, 2011
1,977
3
81
On our Honda, this was the same problem. The oil indicator light would flash under hard acceleration and on inclines. I checked the oil and the dipstick was bone dry. I'm sure Honda would blame the engine seizing on the operator because they ignore the oil indicator light.
That oil indicator light is just an oil pressure light, not an oil level light. The fact that the light came on at all is a very bad sign. Some of the idiot lights aren't useful to most people.
 

Auric

Diamond Member
Oct 11, 1999
9,591
2
71
When I was 16 my brother gave me a '62 Galaxy, it's compression was so bad you needed a running start to get up steep hills. I had to pull and clean the plugs every 2nd day, (luckily a straight-6 in '62 was easy to work on). My friends called me "Mr. fogger" as clouds of blue smoke constantly spewed from the exhaust LOL, I used to beg people for used drain oil to keep it going, it burned over a quart a day and that was just riding around town.

Thus starting the "rolling coal" fad. Oh, you!
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
On our Honda, this was the same problem. The oil indicator light would flash under hard acceleration and on inclines. I checked the oil and the dipstick was bone dry. I'm sure Honda would blame the engine seizing on the operator because they ignore the oil indicator light.

That's an oil pressure light, as already posted, so Honda would be correct.

Ignoring the oil pressure light is never a good idea.
 

JimKiler

Diamond Member
Oct 10, 2002
3,559
205
106
That oil indicator light is just an oil pressure light, not an oil level light. The fact that the light came on at all is a very bad sign. Some of the idiot lights aren't useful to most people.

So why would pressure lower when i take a fast corner in my first car, a ford escort, which was low on oil? I used the engine stop burning addictive twice and it stopped losing oil.