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96 Grand Marquis using oil recently #4783360
06/10/18 07:34 PM
06/10/18 07:34 PM
Joined: Feb 2013
Posts: 1,082
Prospect, KY
spk2000 Offline OP
spk2000  Offline OP
Joined: Feb 2013
Posts: 1,082
Prospect, KY
My 96 GM has started using oilin the past 10-15,000 miles. It has 190,000 miles now. Probably a quart every 2,000 miles. I know some will say that's normal useage but it never used oil in past so why would it start using it. No oil leaks. Checked pcv valve and it was fine. I do normally use synthetic and lately has been 5w30 Castrol Edge but I use whatever is in stash. Any thoughts on why the sudden use of oil that did not exist in past.


96 Grand Marquis
01 Sable LS
02 Montero
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4783366
06/10/18 07:44 PM
06/10/18 07:44 PM
Joined: Jun 2003
Posts: 17,658
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,658
Deplorable in apple valley, ca
Its only 22 yrs old. Its likely that the valve seals are hard and shrunk.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4783369
06/10/18 07:45 PM
06/10/18 07:45 PM
Joined: Dec 2017
Posts: 2,748
SE British Columbia, Canada
Snagglefoot Online content
Snagglefoot  Online Content
Joined: Dec 2017
Posts: 2,748
SE British Columbia, Canada
Try some high mileage oil.


If you want the job done right......do it yourself.
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4783373
06/10/18 07:47 PM
06/10/18 07:47 PM
Joined: Dec 2016
Posts: 6,743
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,743
Waco, TX
Originally Posted By: spk2000
Checked pcv valve and it was fine.


Yeah, but looks can be deceiving.

Check all hoses & connections in the whole PCV system. A new PCV valve can't really hurt?


"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: 96 Grand Marquis using oil recently [Re: Chris142] #4783374
06/10/18 07:47 PM
06/10/18 07:47 PM
Joined: Jan 2013
Posts: 1,993
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,993
Texas
Originally Posted By: Chris142
Its only 22 yrs old. Its likely that the valve seals are hard and shrunk.


That was my first thought .

But if it was me , I would not be too upser to add a quart at 2000 miles . And changing the oil when it was time to add the 2nd quart .


Wyr
God bless
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4783483
06/10/18 10:17 PM
06/10/18 10:17 PM
Joined: Sep 2015
Posts: 3,906
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,906
Connecticut
You could also find a thicker 5w-30, or go to a 10w-30 which would be fine in Kentucky's warm summer climate. I'd concur with the HM. Maybe shoot for a viscosity around 10.5-11.0 cSt at 100 deg C. If you're currently using a weaker 30 grade (ie 9.8-10.20...I'd bump it up. A quart at 2K miles is not too bad for that mileage.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4783521
06/11/18 12:36 AM
06/11/18 12:36 AM
Joined: Oct 2008
Posts: 4,159
Kuwait
Falcon_LS Offline
Falcon_LS  Offline
Joined: Oct 2008
Posts: 4,159
Kuwait
The OE PCV valve (Motorcraft EV-98-B) is only $6 or so, I would start there. Do you get any pinging?


Petro-Canada Duron HP 15W-40 CK-4/SN
99 Explorer: H17W02
00 Pajero: XG9688
01 Grand Marquis: XG2
03 Expedition SSV: XG2
05 Envoy: XG9837
06 XJ8L: C2C41611
07 SRX: XG8765
Re: 96 Grand Marquis using oil recently [Re: Linctex] #4783523
06/11/18 12:40 AM
06/11/18 12:40 AM
Joined: Dec 2009
Posts: 25,858
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 25,858
Regina, Saskatchewan, Canada
Originally Posted By: Linctex
Originally Posted By: spk2000
Checked pcv valve and it was fine.


Yeah, but looks can be deceiving.

Yes, replace anyhow. I was getting "milkshake" in my F-150 in the winter some years back, despite no trip being shorter than 50 miles. PCV passed all the "tests." I replaced it, milkshake gone.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4783551
06/11/18 03:48 AM
06/11/18 03:48 AM
Joined: Jan 2011
Posts: 2,777
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,777
N.Ohio
Originally Posted By: spk2000
My 96 GM has started using oilin the past 10-15,000 miles. It has 190,000 miles now. Probably a quart every 2,000 miles. I know some will say that's normal useage but it never used oil in past so why would it start using it. No oil leaks. Checked pcv valve and it was fine. I do normally use synthetic and lately has been 5w30 Castrol Edge but I use whatever is in stash. Any thoughts on why the sudden use of oil that did not exist in past.

Thoughts.....21 years old and 190000 miles.

One day long ago I did my routine of checking my oil, on my Ford 3.8, which I never had to add anything and was surprised it was one quart down. Ever since, I was adding a half quart every week or two and changing two spark plugs every month. Be glad it is still at a "normal" consumption level. The car was donated after a few months.

Last edited by Lubener; 06/11/18 03:54 AM.

The "thinking" man's friend.
Re: 96 Grand Marquis using oil recently [Re: Garak] #4783586
06/11/18 05:56 AM
06/11/18 05:56 AM
Joined: Jun 2011
Posts: 1,086
Texas
wag123 Offline
wag123  Offline
Joined: Jun 2011
Posts: 1,086
Texas
Originally Posted By: Garak
Originally Posted By: Linctex
Originally Posted By: spk2000
Checked pcv valve and it was fine.


Yeah, but looks can be deceiving.

Yes, replace anyhow. I was getting "milkshake" in my F-150 in the winter some years back, despite no trip being shorter than 50 miles. PCV passed all the "tests." I replaced it, milkshake gone.

+4
Replace the PCV valve.

Re: 96 Grand Marquis using oil recently [Re: spk2000] #4784095
06/11/18 04:06 PM
06/11/18 04:06 PM
Joined: Feb 2013
Posts: 1,082
Prospect, KY
spk2000 Offline OP
spk2000  Offline OP
Joined: Feb 2013
Posts: 1,082
Prospect, KY
I will replace the pvc valve
and yes I do get pinging under heavy acceleration or under load like climbing steep hill. Has done that for the past 100,000 miles. Premium fuel makes it run stronger and go away.


96 Grand Marquis
01 Sable LS
02 Montero
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4784151
06/11/18 05:13 PM
06/11/18 05:13 PM
Joined: Jan 2013
Posts: 1,993
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,993
Texas
Sounds like too much spark advance . I used to set My little 2 barrel 289 to ping a tiny amount when I was getting on it hard .


Wyr
God bless
Re: 96 Grand Marquis using oil recently [Re: WyrTwister] #4784164
06/11/18 05:22 PM
06/11/18 05:22 PM
Joined: Jun 2005
Posts: 11,536
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,536
Santa Barbara, CA
Originally Posted By: WyrTwister
Sounds like too much spark advance . I used to set My little 2 barrel 289 to ping a tiny amount when I was getting on it hard .
\

The 4.6 does not have adjustable timing. Well it can with a tuner, but normally no you can't change it.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4784476
06/12/18 12:25 AM
06/12/18 12:25 AM
Joined: Oct 2008
Posts: 4,159
Kuwait
Falcon_LS Offline
Falcon_LS  Offline
Joined: Oct 2008
Posts: 4,159
Kuwait
Originally Posted By: spk2000
I will replace the pvc valve
and yes I do get pinging under heavy acceleration or under load like climbing steep hill. Has done that for the past 100,000 miles. Premium fuel makes it run stronger and go away.


Yup, definitely replace that PCV valve. Sounds like oil is being sucked in through it, causing the engine to run leaner and hotter.

It wasn't until 2003 that these cars got knock sensors, a '96 does not have adjustable timing. That being said, although time and mileage is definitely a factor, unless it has been neglected, the likely hood of bad valve seals isn't all that common on post '95 engines with the updated seal material.


Petro-Canada Duron HP 15W-40 CK-4/SN
99 Explorer: H17W02
00 Pajero: XG9688
01 Grand Marquis: XG2
03 Expedition SSV: XG2
05 Envoy: XG9837
06 XJ8L: C2C41611
07 SRX: XG8765
Re: 96 Grand Marquis using oil recently [Re: spk2000] #4785170
06/12/18 05:55 PM
06/12/18 05:55 PM
Joined: Feb 2013
Posts: 1,082
Prospect, KY
spk2000 Offline OP
spk2000  Offline OP
Joined: Feb 2013
Posts: 1,082
Prospect, KY
Would I see oil leaking if the valve seals were bad? I see nothing leaking but it is going somewhere.


96 Grand Marquis
01 Sable LS
02 Montero
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