Class Action Lawsuit Targets Subaru Oil Consumption

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NutBucket

Lifer
Aug 30, 2000
27,036
548
126
I also wonder if the problem can be caused by people using the wrong type of oil. Since the FB2.5 uses 0W-20, which is expensive and not all that common yet.
I haven't looked into it yet but I know sometimes in the US thinner oil is spec'd to increase fuel economy. I wouldn't doubt that in other markets 5W-20 is the factory fill.
 

Jumpem

Lifer
Sep 21, 2000
10,757
3
81
It'd be nice if they gave an ending VIN number, as I assume they have implemented the fix at the factory, probably before the TSB was actually released. It says you can claim it under the powertrain warranty so you have 60k miles to report the issue, which seems fair.

I also wonder if the problem can be caused by people using the wrong type of oil. Since the FB2.5 uses 0W-20, which is expensive and not all that common yet.

Good to know. I was thinking about getting an extended warranty to cover my Forester lease to 54k. If this is the case I will be covered by the powertrain warranty.
 

unokitty

Diamond Member
Jan 5, 2012
3,346
1
0
Consumer Reports: Something has changed...

Lately it seems an undue number of test cars at our track have been going through motor oil. We can remember years when we barely had to add oil to any test car between service visits. Something has changed...

Our latest car drinking oil is our $105,000 2012 Porsche Panamera, which is consuming a quart of 0W-40 motor oil about every 2,000 miles. With a 10,000 mile oil change interval, that's five quarts of synthetic oil (at about $8 per) in between oil changes... we think somebody who bought a $100,000 car probably expects better.

.... This writer bought the Consumer Reports 2008 Volkswagen Eos test car and kept it for five years. The whole time, it used a quart of equally expensive 0W-20 motor oil every 1,200 miles ... After several trips back to the local Volkswagen dealer to document the problem, I was told that the VW spec for this engine was, exactly a quart every 1,200 miles. Since I couldn't prove it was using more than that, VW wouldn't help. That car also specified a 10,000 mile oil-change interval, for regular maintenance. By then, all the oil in the sump had been replaced twice...

This problem has plagued other cars, too. In 2006, Mercedes replaced the V6 engine in one of our test cars under warranty after we finished testing them, because of excessive consumption of 0W-40 oil...
Interesting note published by Consumer Reports last year.

Uno
 
Last edited:
Apr 20, 2008
10,162
984
126
Yeah, I know the test is slower, but it has a decent amount of accelerations in it. So driving on cruise for long periods of time should yield better than EPA estimated. I've never had an SUV before, so maybe I am just not used to how big of an impact the aerodynamics is verses a sedan. Although my coworker who got a '14 legacy claims he gets basically the same mileage as me.

I do agree it gets good mileage for a SUV, but I was expecting more. I do generally beat the in city mileage, but most of my miles on it are highway.



West of the Mississippi pretty much every state is 70 or 75 on the interstates. In Texas I've driven on busy, two-lane highways that had a speed limit of 80 .



I've never understood the bash on Subaru interiors. Yeah my '99 legacy had a pretty bare interior, but when we got our 2006 Legacy it had the nicest interior of any car in the price range, IMHO. I also think the Forester has a very nice interior compared to most of its competition. Plus sunroofs are basically standard on Subaru were they are a big upgrade on a Ford, if you can even find one.

The interior in my '99 with 165k was still in great shape when I sold it 7 months ago. My 2006's is still perfect, except for a couple small spots my dog has scratched. It has held up much better than my mom's '07 Edge.

Every ~10mph after 40mph almost doubles wind resistance IIRC. Wind resistance is multiplicative, not additive. Going 75 is a lot harder than 55 on your car.
 

heymrdj

Diamond Member
May 28, 2007
3,999
63
91
I've never understood the bash on Subaru interiors. Yeah my '99 legacy had a pretty bare interior, but when we got our 2006 Legacy it had the nicest interior of any car in the price range, IMHO. I also think the Forester has a very nice interior compared to most of its competition. Plus sunroofs are basically standard on Subaru were they are a big upgrade on a Ford, if you can even find one.

The interior in my '99 with 165k was still in great shape when I sold it 7 months ago. My 2006's is still perfect, except for a couple small spots my dog has scratched. It has held up much better than my mom's '07 Edge.

Well having just cross shopped a Imprezza here is my problem with your comment.

First all, all BIG 3 offer a sunroof on pretty much every model, from the Fiesta/Spark/Dart all the way through the top of the line models. No sunroof is standard, they cost money, it's built into the cost of buying it. On top of that, every model with it has a sunroof package, which is typically 1500$, far more than all the other manufacturers charge for a moonroof (700-900$ being standard).

Remote start is a huge pet peeve of mine, not available on the Imprezza. My Fiesta has factory remote start. This should be an option on EVERY SINGLE VEHICLE, if not standard equipment. There's no reason with a computerized drive train that computerized remote start shouldn't be available.

Heated seats are a struggle to get.

Infotainment smart phone connected system should be standard on the most basic model. One model up and it and every other model should have a minimum of 7" if not larger touchscreen infotainment systems that can control all aspects of the vehicle.

Leather should be an available option on the lowest model.

Speakers lack any decent sound compared to most low end models I've been in.

Interior lighting (footwell, door panels ect) should be standard in all models.

Auto-climate control should be standard or a separate under 300$ option to have.

I could go on, but these are some of the first things. My boss bleeds for subaru, and even he is disappointed by their interiors when he sits in other people's cars.

For every anecdotal piece of evidence, there is an equal and opposite piece. I used my 2004 Ford Expedition for WORK, i towed with it, through sports equipment in it, hauled lumber and cement in it. Other than a worn drivers seat from 150K miles, it was in perfect condition, barely looked worn. Got pics to prove it. A person is either a slob with their car, or they aren't.
 

Zorba

Lifer
Oct 22, 1999
14,875
10,300
136
Well having just cross shopped a Imprezza here is my problem with your comment.

First all, all BIG 3 offer a sunroof on pretty much every model, from the Fiesta/Spark/Dart all the way through the top of the line models. No sunroof is standard, they cost money, it's built into the cost of buying it. On top of that, every model with it has a sunroof package, which is typically 1500$, far more than all the other manufacturers charge for a moonroof (700-900$ being standard).

Remote start is a huge pet peeve of mine, not available on the Imprezza. My Fiesta has factory remote start. This should be an option on EVERY SINGLE VEHICLE, if not standard equipment. There's no reason with a computerized drive train that computerized remote start shouldn't be available.

Heated seats are a struggle to get.

Infotainment smart phone connected system should be standard on the most basic model. One model up and it and every other model should have a minimum of 7" if not larger touchscreen infotainment systems that can control all aspects of the vehicle.

Leather should be an available option on the lowest model.

Speakers lack any decent sound compared to most low end models I've been in.

Interior lighting (footwell, door panels ect) should be standard in all models.

Auto-climate control should be standard or a separate under 300$ option to have.

I could go on, but these are some of the first things. My boss bleeds for subaru, and even he is disappointed by their interiors when he sits in other people's cars.

For every anecdotal piece of evidence, there is an equal and opposite piece. I used my 2004 Ford Expedition for WORK, i towed with it, through sports equipment in it, hauled lumber and cement in it. Other than a worn drivers seat from 150K miles, it was in perfect condition, barely looked worn. Got pics to prove it. A person is either a slob with their car, or they aren't.

The Imprezza, WRX and STi do have lower interiors than what you can get in other cars for similar money, but you get the AWD instead of Sync.

Heated seats come with the all weather package on all Subaru models, which comes from the factory installed on a ton of vehicles. I don't like leather, but I don't think anyone offers leather or auto-climate on basic models of compact cars. The moonroofs come when you move up to the premium package, for ~1500, but you get a lot of other features for that 1500, not just a moon roof. I know you can get a moon roof on just about any car, that doesn't mean you can actually find it with all the options you want, without a bunch of stuff you don't want.

I will agree with you, the Subaru sound system is 100% junk.
 

Zorba

Lifer
Oct 22, 1999
14,875
10,300
136
Every ~10mph after 40mph almost doubles wind resistance IIRC. Wind resistance is multiplicative, not additive. Going 75 is a lot harder than 55 on your car.

FYI: I have driven lots of different cars, I am comparing to my other experience. I have never had a car nose drive on mpg over 70mph like my Forester.

I am also an aerospace engineer, drag is proportional to the square of velocity. So if you want to know what your drag is relative to 55mph, it would be (V^2)/(55^2).

So at 75, your drag is 86% higher than 55. But air drag is no where near the only inefficiency in driving. By far highest inefficiency is in the thermodynamics of the engine. Then you have friction in the drive train and tires, aerodynamics and parasitic loads (alternator, water pump, etc).

My fuel mileage above 70 drops off quicker than if it was 100% aerodynamic. I've ran the calculations several times, which means there is something else robbing power. And again, a different experience than I am used to.
 

Leyawiin

Diamond Member
Nov 11, 2008
3,204
52
91
The old and busted Ford Taurus from my college days in the early 90s burned a quart every 2K miles. The '02 Mazda Protege I had (bought new) didn't burn any oil. Neither does my current 2011 Mitsubishi Lancer Sportback. My folks had a lot of different vehicles over the years. I never heard dad mention any of them burning oil like that. I would be very upset with a new car that consumed a quart every 1K. For manufacturers to claim that's normal is just ridiculous.
 

fbrdphreak

Lifer
Apr 17, 2004
17,556
1
0
Gee, there's so many engineering experts in here, how did we get them to take time off from their busy jobs engineering state of the art motor vehicle engines to share their expertise with us lowly forum dwellers?
 

fbrdphreak

Lifer
Apr 17, 2004
17,556
1
0
Well having just cross shopped a Imprezza here is my problem with your comment.

First all, all BIG 3 offer a sunroof on pretty much every model, from the Fiesta/Spark/Dart all the way through the top of the line models. No sunroof is standard, they cost money, it's built into the cost of buying it. On top of that, every model with it has a sunroof package, which is typically 1500$, far more than all the other manufacturers charge for a moonroof (700-900$ being standard).

Remote start is a huge pet peeve of mine, not available on the Imprezza. My Fiesta has factory remote start. This should be an option on EVERY SINGLE VEHICLE, if not standard equipment. There's no reason with a computerized drive train that computerized remote start shouldn't be available.

Heated seats are a struggle to get.

Infotainment smart phone connected system should be standard on the most basic model. One model up and it and every other model should have a minimum of 7" if not larger touchscreen infotainment systems that can control all aspects of the vehicle.

Leather should be an available option on the lowest model.

Speakers lack any decent sound compared to most low end models I've been in.

Interior lighting (footwell, door panels ect) should be standard in all models.

Auto-climate control should be standard or a separate under 300$ option to have.

I could go on, but these are some of the first things. My boss bleeds for subaru, and even he is disappointed by their interiors when he sits in other people's cars.

For every anecdotal piece of evidence, there is an equal and opposite piece. I used my 2004 Ford Expedition for WORK, i towed with it, through sports equipment in it, hauled lumber and cement in it. Other than a worn drivers seat from 150K miles, it was in perfect condition, barely looked worn. Got pics to prove it. A person is either a slob with their car, or they aren't.
Hey, you sure know a lot. Where did you get your engineering degree from? Wow, with how many years of experience in ICE design? Crazy.

Or maybe you're an expert in product management, you know figuring out things like design, features, and pricing for a global customer base? Because surely no one will buy a car that doesn't have remote start, thus a manufacturer should pay more to include one and still keep their target price the same. Since you know that when pricing a product, you need to hit a target price point to be competitive and thus every feature you add costs your company money, right?

Man, I wish I was as smart as you keyboard warriors. :$
 

NutBucket

Lifer
Aug 30, 2000
27,036
548
126
LOL.

I know one thing is that a lot of buyers don't necessarily care/want all those bells and whistles. My folks would be afraid to touch the center console in a Ford (or any other vehicle) with the touch controls. And honestly, as much as I love tech sometimes simpler is better when it comes to cars.
 

hanoverphist

Diamond Member
Dec 7, 2006
9,928
23
76
That rate of burning oil will age the catalytic converters prematurely, and engines since the late 1990s have been designed to burn no more than a quart per 5000-7500 miles.

both my mid-90s subarus burn about a quart per change, usually around 5-6k miles. both are over 160k miles, neither have had head gasket issues so far.
 

Smoblikat

Diamond Member
Nov 19, 2011
5,184
107
106
2002 WRX, about a quart every 1500 - 2000mi. The car has almost 170K on it, not to mention its tuned to 17psi
 

Nyati13

Senior member
Jan 2, 2003
785
1
76
2 Subaru's over the last 8 years, never had any measurable oil loss between oil changes ever.

But then, my 2006 Forester and 2010 Outback aren't on that class action list either...
 

Samus

Golden Member
Jan 12, 2001
1,407
7
81
My 2014 Forester hasn't burn any oil after several thousands miles. IF you go to any Subaru forums, the oil consumption issue was mostly with older models, owners of newer models have less oil related problem reported. This kind of problem happens to all auto makers, not just Subaru. =/

I disagree. Subaru's boxer engines have no benefit to their vehicles. The only vehicles that actually take advantage of the flat engine are Porsche because they don't have clearance for an upright in the rear.

Subaru's flat four is in the same category as Mazda's rotary. It makes no sense. Its an interesting but inferior engine technology as far as longevity is concerned. Those engines simply don't alloy for proper lubrication of the highest side of the cylinder head... because even with oil squirters there are uneven hot spots on the surface of the piston. In the case of rotary's, the seals don't get even lubrication causing consumption/burn as they heat up and premature wear. Both engines have improved over time, but they're just ridiculously implemented in needless applications.

With how much Toyota has invested in Subaru I'm just shocked they let them continue with their engines. Ford wouldn't let Mazda make a rotary again for a decade after their partnership.
 
Last edited:

Topweasel

Diamond Member
Oct 19, 2000
5,436
1,655
136
Burning oil is not normal. If it does, then the car is a POS.

Maybe it is but i doubt that a class action lawsuit is going to hold water. I mean I doubt that even without outlining it in the manual that it would get that much traction. The fact that the manual states that it is normal, then its normal, even if it shouldn't be normal. It's a reason not to buy a car, but well it's old carry over text is a silly reason to ignore a manual for a brand new 20k+ vehicle. I mean I would expect if I am paying that much they could keep the manual up to date.
 

halgr

Junior Member
Sep 30, 2014
1
0
0
I leased Subaru Forester 2014 in July 2013. The Engine Oil warning lamp is on when the car has 2.600 mileage. Drove to dealer, dealer refill engine oil, about another 2,000 miles, engine oil low again.

Dealer pretend to help perform engine oil consumption test, I trusted the dealer. The first oil consumption test conclude my car never burnt any engine oil.

Engine oil warning lamp on again after about 2,000 miles, dealer persuade to perform engine oil consumption test again, I check the engine oil second day after the dealer top up, it is actually almost 1 inch over maximum.

Drive back, dealer denied, told me that I should start engine for a while and then stop engine and check immediately. After 1,200 miles go back, I was told another story on how to check engine oil. I should stop engine and wait for 5 minutes to check, the engine does not burn oil again.

The dealer keep playing with me, no where that can help to perform engine oil consumption test.

Bad luck on my first and last Subaru car.
 

heymrdj

Diamond Member
May 28, 2007
3,999
63
91
Hey, you sure know a lot. Where did you get your engineering degree from? Wow, with how many years of experience in ICE design? Crazy.

Or maybe you're an expert in product management, you know figuring out things like design, features, and pricing for a global customer base? Because surely no one will buy a car that doesn't have remote start, thus a manufacturer should pay more to include one and still keep their target price the same. Since you know that when pricing a product, you need to hit a target price point to be competitive and thus every feature you add costs your company money, right?

Man, I wish I was as smart as you keyboard warriors. :$

Lol my opinions were an observation dumbass. Look, it if has been done before, stands to reason that it can be done. Right? Sound logic? So tell me, mr. engineer, why must an engine burn oil? Why should it be designed to burn something that dirty? You know the real answer to that question.

Also, I said I think it should be standard. Obviously most manufacturers disagree but it's an option. So there you have it, an option. A simple option in the BCM. Would take very very minimal programming, there's a standards of communication for it.
 

NutBucket

Lifer
Aug 30, 2000
27,036
548
126
Have you contacted Subaru directly? Tried a different dealer?

At 4600 miles my '15 Fozzy has used exactly zero oil.
 

dguy6789

Diamond Member
Dec 9, 2002
8,558
3
76
1 quart per 1k miles is bonkers. Recently hit 10k miles and one year ownership on my '13 Civic. Has consumed zero oil.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
1 quart per 1k miles is bonkers. Recently hit 10k miles and one year ownership on my '13 Civic. Has consumed zero oil.

IIRC, it has to be that bad before they will fix it.

What does all this oil burning do to the cats and sensors?
 

NutBucket

Lifer
Aug 30, 2000
27,036
548
126
No idea. My old Honda had 200k on the OEM cat and the engine used about a quart every 5k. No issues.
 
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