Recent Topics
What Fuel is it?
by MolaKule - 08/20/19 08:01 PM
Oil stashes..
by Mad_Hatter - 08/20/19 07:49 PM
Sealing Redundant Door
by gathermewool - 08/20/19 07:25 PM
Cam2 Dexos1 Gen 2 found at Napa
by bbhero - 08/20/19 06:59 PM
Flywheel broke 2012 V8 Silverado, with pics
by 01rangerxl - 08/20/19 05:10 PM
Blade for brush cutter
by Donald - 08/20/19 04:47 PM
Amplifier shipping nightmare
by cwilliamsws6 - 08/20/19 04:23 PM
O2 sensor recommendation
by Number_35 - 08/20/19 04:15 PM
Rental Home Insurance....
by JLTD - 08/20/19 03:30 PM
Amsoil SS Noack numbers
by SlavaB - 08/20/19 03:08 PM
Is my starter drawing to many amps?
by joegreen - 08/20/19 02:41 PM
2004 Volvo XC-90 codes
by Kira - 08/20/19 01:42 PM
New Mercury v8?
by 1978elcamino - 08/20/19 01:42 PM
diesel injector cleaning/service
by DriveHard - 08/20/19 12:02 PM
Time for an oil change???
by RoadDukie - 08/20/19 12:00 PM
Pennzoil High Mileage conventional moly content.
by aquariuscsm - 08/20/19 11:59 AM
onboard auto tool kit
by phillyFX4 - 08/20/19 11:24 AM
No way to follow a thread?
by paulri - 08/20/19 10:59 AM
Schumacher Instant Power&Air
by Char Baby - 08/20/19 10:25 AM
Newest Members
Dope, ticojr02, Timdetails, rangeseven, GNH82
69009 Registered Users
Who's Online Now
111 registered members (Androdz, 2004tdigls, 97K15004WD, 5AcresAndAFool, 01rangerxl, 14Accent, 14 invisible), 2,253 guests, and 19 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics293,574
Posts5,042,728
Members69,009
Most Online3,532
Jul 30th, 2019
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Coolant in Oil? #5138844 06/19/19 10:34 PM
Joined: Jun 2019
Posts: 1
S
Score294 Offline OP
OP Offline
S
Joined: Jun 2019
Posts: 1
Hi,

Long time lurker, first time poster. I recently purchased a '99 4Runner. I believe I did pretty good diligence on the inspection prior to purchasing (no milky stuff under the oil cap) but now after changing the oil I'm concerned I might have a blown head gasket. I was considering trying out Bars Leak. The guy I purchased it from did all of his own maintenance, had old school painter's tape with the mileage on the windshield... I noticed a Fram Extra Guard filter - so leads me to believe he did stuff by the cheapest cost. Is this what dino oil looks like on a 160K engine or does it look like there's coolant in the oil? I just filled with Mobil 5W-30 EP High Mileage, a full quart of Marvel Mystery Oil, and a Fram Ultra filter. I hope this guy didn't screw me as he did not mention any problems mechanically or with the oil. To add to the mystery, car also had a CEL a few days after I drove it for an EVAP leak (despite me checking with my own scanner, none current or pending) - but where I bought it from doesn't test for emissions so I let that go. No bubbles under the radiator, no noticeable leaks anywhere, and no white smoke out of the tailpipe. I did a block test (chemical test with liquid that changes colors if exhaust is detected in coolant) and it came back negative. The pictures have me flashing my light on the oil, was doing it later at night so not natural lighting, not sure if that distorts them. I just fear it looks like the dreaded chocolate milkshake.


[Linked Image]
[Linked Image]
[Linked Image]





Last edited by Score294; 06/19/19 10:39 PM.
Re: Coolant in Oil? [Re: Score294] #5138861 06/19/19 11:08 PM
Joined: Aug 2013
Posts: 576
T
tcp71 Offline
Offline
T
Joined: Aug 2013
Posts: 576
Looks like old Dino oil to me. Wouldn’t worry about it a bit.


2016 F150 Eco: Edge 0w40
2005 Sienna 3.3: mobil 0w40 (varies)
Re: Coolant in Oil? [Re: Score294] #5138871 06/19/19 11:17 PM
Joined: Mar 2016
Posts: 74
josephp732 Offline
Offline
Joined: Mar 2016
Posts: 74
It certainly does look like there might be coolant in the oil - it's a bit milky, interesting you don't have any other signs of a leaking head gasket. Have you removed the spark-plugs and preformed a compression test? It also could be very used conventional oil. I would run your new oil for ~500 miles and then send a sample in to a lab for testing.

Last edited by josephp732; 06/19/19 11:19 PM.
Re: Coolant in Oil? [Re: Score294] #5138880 06/19/19 11:29 PM
Joined: Jan 2017
Posts: 3,112
M
maxdustington Offline
Offline
M
Joined: Jan 2017
Posts: 3,112
That third pic with natural light looks right as rain.

I'm not sure the goo on the oil cap means what you think it means.


03 Jetta AWP/09A 210k kms
Edge 0W40 + Mann 719/30
Re: Coolant in Oil? [Re: Score294] #5138884 06/19/19 11:36 PM
Joined: Dec 2018
Posts: 209
P
PPWarrior Offline
Offline
P
Joined: Dec 2018
Posts: 209
Yep.

Re: Coolant in Oil? [Re: Score294] #5138887 06/19/19 11:41 PM
Joined: May 2017
Posts: 11
R
Rygrego Offline
Offline
R
Joined: May 2017
Posts: 11
If you're going to try a sealant try K-seal best product of its kind. Once it works you can flush out the remainder. It is permanent.

Re: Coolant in Oil? [Re: Score294] #5138890 06/19/19 11:43 PM
Joined: Sep 2010
Posts: 9,853
4WD Offline
Offline
Joined: Sep 2010
Posts: 9,853
test

Re: Coolant in Oil? [Re: Score294] #5138905 06/20/19 12:57 AM
Joined: Jan 2019
Posts: 114
J
Jetsfan421 Offline
Offline
J
Joined: Jan 2019
Posts: 114
From the looks of that oil it could either be very used conventional oil, or a slight leakage of coolant. Save the oil and send it off for analysis. Before clogging your coolant system with stop leaks I'd just fix the gaskets, but I like wrenching and am capable.

Re: Coolant in Oil? [Re: Score294] #5138924 06/20/19 03:23 AM
Joined: May 2019
Posts: 1,051
M
Mad_Hatter Offline
Offline
M
Joined: May 2019
Posts: 1,051
The only time I've ever had choco milk oil was a blown head gasket on a Ford Tempo many many moons ago. Curious, are your spark plugs wet? Does your oil smell like fuel? If not, then it's not gas and probably coolant. Personally, i've had dino in an engine for a gazillion miles (that previously mentioned Tempo) and it just keeps getting black as night unless there's a moisture issue.

Have it tested before you do anything. You might use your scan tool to see when the last time DTC's were cleared.

Last edited by Mad_Hatter; 06/20/19 03:27 AM.
Re: Coolant in Oil? [Re: Score294] #5138926 06/20/19 03:44 AM
Joined: Apr 2018
Posts: 523
T
talest Offline
Offline
T
Joined: Apr 2018
Posts: 523
Is your coolant level going down?
How cloudy or puffy is your exhaust, if at all? Any white smoke that smells like coolant?
Driveability. Is the throttle response sometimes muted, or not instantaneous?

If it is a small leak, you have some options. The best fix, if it is that, is of course new gaskets, if that is not cost-prohibitive. But there may be one. I would change the oil and look for a decrease in coolant level first.

Re: Coolant in Oil? [Re: Score294] #5138947 06/20/19 05:40 AM
Joined: Dec 2016
Posts: 232
I
incognito_2u Offline
Offline
I
Joined: Dec 2016
Posts: 232
First and foremost, Welcome! welcome

The oil does look suspect, but I wouldn't add any magic elixir's just yet...…….let that fresh Oil Change play out and monitor your engine...….watch for Coolant loss, Oil in the Coolant, white smoke, overheating, ect and make your evaluation on what is observed.

Could be getting worked up over nothing. Enjoy your new ride!


2006 Jeep Commander 3.7 V6 -113k (PUP5W30/XG3600)
2006 Toyota Corolla 1.8 VVTi -82k (M1EPHM5W30/XG3600)
1999 Toyota Corolla 1.8 -87k (PUP5W30/XG4386)
1998 Toyota Corolla 1.8 -66k (PUP5W30/XG3600)
Re: Coolant in Oil? [Re: Score294] #5138953 06/20/19 05:55 AM
Joined: Feb 2019
Posts: 287
R
Railrust Online Content
Online Content
R
Joined: Feb 2019
Posts: 287
It could very well be just old fashioned moisture, and not coolant.

Re: Coolant in Oil? [Re: tcp71] #5138966 06/20/19 06:22 AM
Joined: May 2018
Posts: 1,045
K
ka9mnx Offline
Offline
K
Joined: May 2018
Posts: 1,045
Originally Posted by tcp71
Looks like old Dino oil to me. Wouldn’t worry about it a bit.

Yep


2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Coolant in Oil? [Re: Score294] #5138995 06/20/19 07:06 AM
Joined: Dec 2004
Posts: 11,355
T
Triple_Se7en Offline
Offline
T
Joined: Dec 2004
Posts: 11,355
Streaks and color changes indicate dilution. Get that oil analyzed for % content.


19 Hyundai SantaFe 2.4GDI Castrol Edge 5w30 / NAPA Mann-Hummel filter / 6oz Liqui-Moly Treatment
04 Colorado 3.5 Castrol Edge 0W40 Euro & K&N filter
03 Malibu 3.1 QS / Valv Syn 5w30 mix Fram EG filter
Re: Coolant in Oil? [Re: Score294] #5139002 06/20/19 07:17 AM
Joined: Apr 2010
Posts: 2,064
A
atikovi Online Content
Online Content
A
Joined: Apr 2010
Posts: 2,064
I'd change the oil and filter in 500 miles (if it makes it that far) just to flush out the system and see how it looks then.

Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™