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#4624359 - 01/04/18 10:50 PM Inability to get oil to operating temp
Atomic Offline


Registered: 07/09/14
Posts: 27
Loc: Ohio
Hello,

Last time I stopped by was to get input on what oil I should run in my new Focus RS. I have been on Mobil 1 5w-50 and a Fram Ultra and just completed second oil change at 10.5k (7.5k run).

With the arrival of winter, I am noticing the oil is never exceeding ~170 degrees, even with my 60 mile round trip to work and back, and with my lack of will power to keep from hammering down on it. On a recent 450 Mile road trip, I drove between 80-100 for hours at 3.5k RPM with the oil temp never reaching even 190 degrees.

All said, is this going to have a negative impact on the oil, necessitating a change earlier than the 7.5k I will run normally?

Thanks!


Edited by Atomic (01/04/18 10:50 PM)
_________________________
1997 Chevrolet Camaro (CAI, Borla Catback, lowered 1.5")- 183k
2016 Ford Focus RS (Stealth Grey)- 15k

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#4624362 - 01/04/18 10:51 PM Re: Inability to get oil to operating temp [Re: Atomic]
Alex_V Offline


Registered: 04/10/16
Posts: 1155
Loc: Campbellsville, KY
No.
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I like Chevy and Valvoline.

'13 Cruze, 1.4T, 112K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 167K
'67 Suburban, 350, 331K

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#4624373 - 01/04/18 11:10 PM Re: Inability to get oil to operating temp [Re: Atomic]
SandCastle Offline


Registered: 10/30/14
Posts: 21
Loc: Michigan
With the oil struggling to maintain 170F, you obviously don't need 50 weight oil. Even SAE 30 would be too viscous for optimum performance at that temperature. Why not compromise and use 0W-40 year round?

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#4624383 - 01/04/18 11:17 PM Re: Inability to get oil to operating temp [Re: Atomic]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
You are seeing "average" temps.

Rest assured, the oil at certain other parts of the engine are seeing well over 212*F.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4624395 - 01/04/18 11:30 PM Re: Inability to get oil to operating temp [Re: Atomic]
das_peikko Offline


Registered: 01/01/18
Posts: 499
Loc: San Antonio, TX
You sure your thermostat isn't stuck open? What's your water temp say?

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#4624402 - 01/04/18 11:44 PM Re: Inability to get oil to operating temp [Re: Atomic]
DoubleWasp Offline


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
Seeing as you have a coolant/oil oil cooler, that is particularly strange. Oil should be close to coolant temps. There should be no issue with it warming up the oil along with the engine.

Coolant temp would be necessary information here.
_________________________
07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
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#4624407 - 01/04/18 11:49 PM Re: Inability to get oil to operating temp [Re: Atomic]
Rolla07 Offline


Registered: 11/05/11
Posts: 4734
Loc: MTL, CANADA
My car takes long in winter to show the usual halfway on the temp gauge...cold outside, heat and fans almost at max while idling causes heat gauge to drop to 1/4. Im assuming its normal, as its been like that for years.
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2007 Corolla Red Pearl 155k miles
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#4624408 - 01/04/18 11:49 PM Re: Inability to get oil to operating temp [Re: DoubleWasp]
spasm3 Offline


Registered: 05/30/10
Posts: 8642
Loc: North Carolina
Originally Posted By: das_peikko
You sure your thermostat isn't stuck open? What's your water temp say?
Originally Posted By: DoubleWasp
Seeing as you have a coolant/oil oil cooler, that is particularly strange. Oil should be close to coolant temps. There should be no issue with it warming up the oil along with the engine.

Coolant temp would be necessary information here.

+1

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#4624441 - 01/05/18 12:46 AM Re: Inability to get oil to operating temp [Re: Alex_V]
anndel Offline


Registered: 05/28/09
Posts: 245
Loc: Hawaii, USA
Originally Posted By: Alex_V
No.


+1

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#4624445 - 01/05/18 12:54 AM Re: Inability to get oil to operating temp [Re: DoubleWasp]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: DoubleWasp
Seeing as you have a coolant/oil oil cooler, that is particularly strange. Oil should be close to coolant temps.


Not necessarily.....
oil coolers are always in the "cold" hose (return from radiator to engine)...
and coolant temp sensors are usually near the hottest part (near thermostat housing)
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4624469 - 01/05/18 03:43 AM Re: Inability to get oil to operating temp [Re: Atomic]
KL31 Offline


Registered: 06/03/16
Posts: 549
Loc: South OZ
190F is about 90 Celsius. Sounds normal. The engine will have an oil cooler to help maintain it's preferred operating temp. For most cars that have an oil temp gauge that I've seen, 80-90 Celsius is normal for oil.

In winter my engine struggled to get over 70 celsius. Of course, as others have pointed out, there will be spots in your engine where the oil does indeed far exceed that, the oil circulates and cools down.

Temp gauge location plays a big part. If it's in the sump, it's going to be lower. I have mine in an oil galley plug location. I have no idea why there was a removable galley plug screw in the block. Thanks very much Mazda engineers, you knew I wanted a spot for an oil temp sensor. Otherwise, most people tap into the sump. Good for sump temp, but doesn't tell you what the pistons or heads are seeing.

Also, this is a DI turbo car. If ford recommend 50 grade, it's probably for a reason. If anything, if your winters are not cold, you could switch to 15W50, which might be better for NOACK. 5W50 will probably have more VII and prone to shear more. I'm betting the RS engine would be good at that too.
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95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn

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#4624486 - 01/05/18 05:00 AM Re: Inability to get oil to operating temp [Re: Atomic]
dlundblad Offline


Registered: 09/30/13
Posts: 10010
Loc: Indiana
I am just going to say it. 5w50 is too thick with the weather you are experiencing.

Does your owners manual give you a range of weights. Current EB engines require 5w30.

*I would also check the location of your oil temp sensor and see if that plays a roll in what you're seeing.


Edited by dlundblad (01/05/18 05:03 AM)
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4624500 - 01/05/18 05:33 AM Re: Inability to get oil to operating temp [Re: dlundblad]
bbhero Offline


Registered: 03/20/15
Posts: 4613
Loc: Virginia
The W the winter rating. So a 5w is just fine. The 50 part I agree with you on.


Edited by bbhero (01/05/18 05:34 AM)
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#4624504 - 01/05/18 05:41 AM Re: Inability to get oil to operating temp [Re: Atomic]
Ethan1 Offline


Registered: 12/29/14
Posts: 1632
Loc: 'murica
Ford traditionally specs 5W50 in their track-oriented cars such as the GT and GT500. If you're driving on the street, 5W50 is probably not for you. I would use whatever they spec for the same engine in a different vehicle.

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#4624562 - 01/05/18 07:11 AM Re: Inability to get oil to operating temp [Re: Atomic]
ThankYouma Offline


Registered: 12/14/17
Posts: 59
Loc: New York City
50-grade oil seems to be a thing with the new Focus RS, a la new Ford GT which also said 5W-50. As noted, new Mustangs call for 5W-20. (2014 Mustang GT does)

Some quick searching, and I found that many are running Shell Rotella T6 5W-40 in their new Focus RS. http://www.focusrs.org/forum/9-focus-rs-discussions/980-rs-oil-requirements.html#/topics/980?page=2

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