Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Mechanical & Electrical

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 12-22-2019, 10:10 AM
tnmike's Avatar
tnmike tnmike is offline
Sultan of Scrounge
 
Join Date: Feb 2009
Location: NE TN
Posts: 3,949
Default Subaru Forester oil consumption

I've been a Subaru fan for years. That being said my wife has a 2012 Forester that drinks oil. It was checked by a dealer under the lawsuit settlement and they said it was fine. Pure BS. The preferred oil is 0-20.

What do you guys think about going to 5w-30? I'm not sure if it will slow the consumption but it's worth a try. I'm sick of adding a 1/2 quart of oil every two weeks.
__________________
Buy it cheap and stack it deep
Klaatu barada nikto
Reply With Quote
  #2  
Old 12-22-2019, 10:58 AM
astronut's Avatar
astronut astronut is offline
Senior Member
 
Join Date: Jun 2019
Location: Louisiana
Posts: 831
Default

One thing to consider if the vehicle is still under warranty is if the switch will affect warranty coverage of the vehicle. Just a thought. This would be a good question for STW.
__________________
I love the smell of napalm in the morning. It smells like, victory!

Victor Torch Set With Meco Regs
Lincoln Weld Pak 100
Giant Tech Arc 200
Miller Roughneck2E
Reply With Quote
  #3  
Old 12-22-2019, 10:59 AM
Shopmonkey's Avatar
Shopmonkey Shopmonkey is offline
Elite Member
 
Join Date: Jan 2007
Location: Jamestown, N.D. USA
Posts: 1,304
Default

After that first 1/2 quart is gone, will it continue to use oil?
__________________
RIP Cutter
Reply With Quote
  #4  
Old 12-22-2019, 11:02 AM
Norm W's Avatar
Norm W Norm W is offline
Elite Member
 
Join Date: May 2006
Location: Syracuse, NY
Posts: 2,814
Default

It seems that all the car companies are going for that last .001 of corporate mileage. They run the rings so loose that the oil just goes right by them. Honda does the same thing. I don't think that the 5-30 would hurt the engine, it might lower the mileage a bit (.001?), but what costs more? A fellow that has a Honda with the same problem, said the car stopped using excess oil at about 60,000 miles. Is that a bit long for the rings to seat?
__________________
Make over, make do, or do without

Why do I have to press one for English when you're just gonna transfer me to someone I can't understand anyway?

Grant me the strength to accept the things I cannot change, the courage to change the things I can & the friends to post my bail when I finally snap!
Reply With Quote
  #5  
Old 12-22-2019, 11:04 AM
Ironman's Avatar
Ironman Ironman is offline
Iron Modification Investigator
 
Join Date: Feb 2008
Location: Warburg, Alberta, Canada
Posts: 14,270
Default

Time for the Bon Ami treatment
__________________
Gerry
You got freedom of speech, if you don't say too much.
Aaron Neville.

The virtue is always a cover for the sin. That's the key to understanding the modern left. Whatever they're accusing you of doing, they are doing themselves but more enthusiastically. And that's definitely the story of Justin Trudeau. Tucker Carlson
Reply With Quote
  #6  
Old 12-22-2019, 11:43 AM
Shade Tree Welder's Avatar
Shade Tree Welder Shade Tree Welder is offline
Grumpy Bastard
 
Join Date: Jun 2004
Location: Kankakee County, IL
Posts: 19,936
Default

Quote:
Originally Posted by tnmike View Post
I've been a Subaru fan for years. That being said my wife has a 2012 Forester that drinks oil. It was checked by a dealer under the lawsuit settlement and they said it was fine. Pure BS. The preferred oil is 0-20.

What do you guys think about going to 5w-30? I'm not sure if it will slow the consumption but it's worth a try. I'm sick of adding a 1/2 quart of oil every two weeks.
Is it leaking oil or burning oil? How many miles on the car?


Quote:
Originally Posted by Norm W View Post
It seems that all the car companies are going for that last .001 of corporate mileage. They run the rings so loose that the oil just goes right by them. Honda does the same thing.
Yes, they are squeezing every 0.001 mile of efficiency out of them.

In reality the tolerances are tighter to run the lower viscosity oils.
Wait until you see the 0W-16 and 0W-12 oils that are on their way.

Quote:
Originally Posted by Norm W View Post
I don't think that the 5-30 would hurt the engine,
Going with a higher viscosity oil will 1) not solve the problem but. 2) could
starve the engine critical components do to low oil flow due to the higher
viscosity in a the tighter tolerances in the engine.

Oh and don't think just because you have good oil pressure that everything
is getting lubricated when you switch to the higher viscosity oil. The oil
pressure sensor are generally just after the filter and only represent the
pressure in the main oil galleries and not a confirmation of good oil flow
in the bearings.
__________________
Shade

"Prepare to defend yourselves."
-- Sergeant Major Basil L. Plumley, Ia Drang Valley
Reply With Quote
  #7  
Old 12-22-2019, 11:46 AM
Shade Tree Welder's Avatar
Shade Tree Welder Shade Tree Welder is offline
Grumpy Bastard
 
Join Date: Jun 2004
Location: Kankakee County, IL
Posts: 19,936
Default

I have a Ford Exploder, with 217k on it, does not burn any oil, does have
a few minor leaks that do not require added oil over my 6k oil change and
it runs 5W-20.

It is not the oil viscosity...
__________________
Shade

"Prepare to defend yourselves."
-- Sergeant Major Basil L. Plumley, Ia Drang Valley
Reply With Quote
  #8  
Old 12-22-2019, 11:50 AM
Shade Tree Welder's Avatar
Shade Tree Welder Shade Tree Welder is offline
Grumpy Bastard
 
Join Date: Jun 2004
Location: Kankakee County, IL
Posts: 19,936
Default

Quote:
Originally Posted by Shade Tree Welder View Post
Is it leaking oil or burning oil? How many miles on the car?
How often have you changed the oil in the engine?

What oil have you been using? (please for the love of god don't tell me you use
the "high mileage" oils in it.)

Do you change the air filter when you change the oil?

What kind of driving is done, short trips, long trips? Does the engine have time
to come up to temperature?

Are you the original owner?
__________________
Shade

"Prepare to defend yourselves."
-- Sergeant Major Basil L. Plumley, Ia Drang Valley
Reply With Quote
  #9  
Old 12-22-2019, 05:03 PM
GWIZ's Avatar
GWIZ GWIZ is offline
SFT Historian
 
Join Date: Feb 2006
Location: USA
Posts: 6,977
Default

I'm still driving my 84 Subaru, was looking at 2000-2006 Forester because the hp and mileage ratio is better than most cars but it appears they have an inherent head gasket issue that Subaru could not figure out, likely need to re-torque the head gaskets at 60K miles as I did on my Subaru and mine did need it.

On the other hand I just about had it with replacing CV boots, may only look at rear wheel drive trucks.

We don't have the same motors but they are both "flat" and Subaru's.
External leaks on mine.
the oil pump seals need to be replaced every 60K miles
other seals, mainly the front and rear crank shaft seals 80K miles
needs a pan gasket.

As for internal Oil sucking
My motor
PCV system had a blocked vent hose, the hose/vent reduces PCV vacuum about 50%
the blocked hose increased PCV vacuum that was sucking oil and spitting it through the PCV valve just under the carburetor.
Oil turned to a "hard" plastic tar, see picture.

Has to do with flat motors,
It was noted in my manual that this vent hose was to prevent oil from being sucked in when (IIRC) the car is making banked right turns.

My PCV valve is mounted in a horizontal position so an after market PCV will not work although auto parts stores state they will... they will not... after-market when installed made a continuous sound like a gang of angry bumble bees.
IIRC my PCV does not use a spring as after-market do have springs.

If the oil is being burned into the exhaust the CAT will go bad sooner than later.
Attached Thumbnails
Click image for larger version

Name:	Carb P5230037.jpg
Views:	67
Size:	203.8 KB
ID:	153594  
__________________
*
*
The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment. ~Warren G. Bennis

Last edited by GWIZ; 12-23-2019 at 12:15 PM.
Reply With Quote
  #10  
Old 12-22-2019, 07:04 PM
Shopmonkey's Avatar
Shopmonkey Shopmonkey is offline
Elite Member
 
Join Date: Jan 2007
Location: Jamestown, N.D. USA
Posts: 1,304
Default

My wife's '02 Highlander ate a quart of oil quite regularly. We had it in for a valve replacement as well as valve guides and, now, the oil stays where it belongs.. in the crankcase.
__________________
RIP Cutter
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 03:18 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.