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Blown Oil Seal After Converting Back From HM Oil #4466431
07/21/17 05:13 PM
07/21/17 05:13 PM
Joined: Jul 2015
Posts: 477
Pennsylvania
Astro_Guy Offline OP
Astro_Guy  Offline OP
Joined: Jul 2015
Posts: 477
Pennsylvania
This is probably just a coincidence, but my Volvo blew the main crankshaft seal while driving in the mountains of West Virginia fully loaded at high speeds. If memory serves me, I started using Mobil 1 5w30 HM at about 160K. Later I swithced to Mobil 1 0w40 at around 190K. The PCV valve was changed out within the last 6 months, so that isn't likely to be the cause.

Oil consumption was nil over a 5K OCI with high mileage oil. It reached one quart over 7900 miles on the last OCI with the 0w40. It was also down 1/2 quart at 6K miles on this oil, without hot weather or towing. It dropped another 1/4 quart after 600 miles of hot weather towing last month.

Is this just a coincidence? Should I revert back to a high mileage oil?


'01 Volvo V70XC, 228k, 0W-40 M1
'16 Accord, 17k, 0W-20 M1 EP
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466449
07/21/17 05:28 PM
07/21/17 05:28 PM
Joined: Jan 2016
Posts: 802
NC
Vladiator Offline
Vladiator  Offline
Joined: Jan 2016
Posts: 802
NC
Originally Posted By: Astro_Guy
driving in the mountains of West Virginia fully loaded at high speeds.

Something tells me that the oil is not the one to blame here... High Mileage cars tend to blow seals in "Spirited driving" conditions. Just a coincidence, in my opinion.


2000 Lexus GS300-361k
1999 Lexus GS400-213k
2006 Toyota Camry-187k
2006 Toyota Highlander Hybrid-125k
2009 Scion xB-120k
2013 VW Tiguan-120k
2009 Toyota Tacoma-60k
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466481
07/21/17 06:01 PM
07/21/17 06:01 PM
Joined: Sep 2007
Posts: 968
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 968
TX, USA
Originally Posted By: Astro_Guy
.. while driving in the mountains of West Virginia fully loaded at high speeds.


This is why???


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466509
07/21/17 06:26 PM
07/21/17 06:26 PM
Joined: Jul 2005
Posts: 30,422
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,422
NY
160K? Working the engine? I'd say it had nothing to do with the oil, just bad luck.


God Bless Our Troops

Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466537
07/21/17 06:55 PM
07/21/17 06:55 PM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
Originally Posted By: Astro_Guy
I switched to Mobil 1 0w40 at around 190K.


I think it was just it's time.

190,000++ miles and things like that just might start happening.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466551
07/21/17 07:04 PM
07/21/17 07:04 PM
Joined: Sep 2013
Posts: 10,447
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,447
Indiana
I know you said your PCV was replaced. I am assuming you mean oil trap? Where the passages clear as well?

There's a guy on the XC70 forum that lost his seals while driving up some mountains. Heck, that may have been you? shrug

Last edited by dlundblad; 07/21/17 07:05 PM.

03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Blown Oil Seal After Converting Back From HM Oil [Re: dlundblad] #4466644
07/21/17 08:33 PM
07/21/17 08:33 PM
Joined: Jul 2015
Posts: 477
Pennsylvania
Astro_Guy Offline OP
Astro_Guy  Offline OP
Joined: Jul 2015
Posts: 477
Pennsylvania
This car turned over 214,000 miles just prior to the failure. A month prior it was towing nearly 1000 pounds in a 5x8 U-Haul in the mountains of PA at similarly high speeds. I just tossed this out there for sake of discussion.

Oil use did seem to go up significantly after switching to 0w40. Should the repairs prove economically viable, I will most likely go back to a 5w30 High Mileage.

Last but not least, I am not the guy in the XC70 forum, but may look him up. Astro_14, wherefore art thou?


'01 Volvo V70XC, 228k, 0W-40 M1
'16 Accord, 17k, 0W-20 M1 EP
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466678
07/21/17 09:01 PM
07/21/17 09:01 PM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio
At that age, with those miles, it was bound to happen sooner or later, especially with that kind of use profile. That motor lives a hard life under your tutelage. Might as well take care of its seals.
I haven't seen Astro14 in a while. He might be at work on a rotation to some distant land for the moment.
Finally, I must be 14 or something. Regarding the phrasing 'blown seal' - I just can't even. lol


too many cars and oil combinations to list in 150 characters or less
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4466700
07/21/17 09:19 PM
07/21/17 09:19 PM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
Now that's an image I won't soon forget


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: Blown Oil Seal After Converting Back From HM Oil [Re: L_Sludger] #4466892
07/22/17 07:23 AM
07/22/17 07:23 AM
Joined: Jul 2015
Posts: 477
Pennsylvania
Astro_Guy Offline OP
Astro_Guy  Offline OP
Joined: Jul 2015
Posts: 477
Pennsylvania
Originally Posted By: L_Sludger
Finally, I must be 14 or something. Regarding the phrasing 'blown seal' - I just can't even. lol


See https://www.youtube.com/watch?v=_j0JGkqS2Ps


'01 Volvo V70XC, 228k, 0W-40 M1
'16 Accord, 17k, 0W-20 M1 EP
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4467228
07/22/17 03:07 PM
07/22/17 03:07 PM
Joined: Sep 2013
Posts: 10,447
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,447
Indiana
Originally Posted By: Astro_Guy
This car turned over 214,000 miles just prior to the failure. A month prior it was towing nearly 1000 pounds in a 5x8 U-Haul in the mountains of PA at similarly high speeds. I just tossed this out there for sake of discussion.

Oil use did seem to go up significantly after switching to 0w40. Should the repairs prove economically viable, I will most likely go back to a 5w30 High Mileage.

Last but not least, I am not the guy in the XC70 forum, but may look him up. Astro_14, wherefore art thou?


When seals go, they really go without warning you about the catastrophic failure.

So you're sure your PCV passages and components are good?


03 Jeep WJ 4.0 200k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 149k Rotella T5 10w30 Supertech ST3980

Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4467279
07/22/17 04:57 PM
07/22/17 04:57 PM
Joined: Oct 2010
Posts: 1,768
california
wrcsixeight Offline
wrcsixeight  Offline
Joined: Oct 2010
Posts: 1,768
california


Had to go there


LA 318 Roller Cam
Pennzoil Platinum 10w-30
Fram ultra XG8A
Fram Ultra XG16 on remote transmission filter mount
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4467388
07/22/17 07:00 PM
07/22/17 07:00 PM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio
Originally Posted By: SilverFusion2010
Now that's an image I won't soon forget





too many cars and oil combinations to list in 150 characters or less
Re: Blown Oil Seal After Converting Back From HM Oil [Re: Astro_Guy] #4467468
07/22/17 08:22 PM
07/22/17 08:22 PM
Joined: Sep 2009
Posts: 16,008
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,008
OH
You don't typically see a RMS "blow".
They usually start to leak a bit and gradually leak more over time and miles.
The oils you've used have nothing to do with this failure nor does the PCV system.
Replacement is straightforward but does involve a lot of disassembly and then reassembly.
If you're up for the work, fix it. If not, it's time for this old Volvo to go to the yard of no return.
After sixteen years and 214K, it's not as though it owes you anything.
You can buy a better one for cheap since these cars have limited resale value.


17 Forester 12K MSS 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Blown Oil Seal After Converting Back From HM Oil [Re: fdcg27] #4469488
07/24/17 10:46 PM
07/24/17 10:46 PM
Joined: Jul 2017
Posts: 22
BC, Canada
amargill19 Offline
amargill19  Offline
Joined: Jul 2017
Posts: 22
BC, Canada
With these whiteblock engines, a neglected PCV system will cause oil leaks in all sorts of places, the RMS being the worst as far as repairs go.

I recently bought a car with nearly the same engine and it was very neglected in terms of maintenance, and shortly after replacing all of the PCV/oil breather components it sprung a leak at the rear cam seal, which at first glance I thought was the RMS. Luckily I caught it immediately and had it sorted day of with a new $10 seal.

OP, confirm that it's the RMS and not a rear cam seal. When the rear cam seal goes it will drip down from above and look like it's coming from the RMS. If it is the RMS switch back to HM and hope consumption decreases? Good luck.

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