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#4624652 - 01/05/18 08:59 AM Any harm running Castrol edge 10/40 in diesel?
BlackBeard Offline


Registered: 12/06/15
Posts: 85
Loc: Yucaipa, CA
As usual I stock up on auto zones end of year oil clearance and they only had this Castrol edge 10/40, I know itís a great oil but will it harm anything in a diesel? One of my vehicles is a 7.3 powerstroke that Iíd like to put the cheap oil in. Iím familiar with the detergent additives difference but this motor never turns oil black anyways.

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#4624656 - 01/05/18 09:01 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
Rand Offline


Registered: 08/20/03
Posts: 12641
Loc: NE,Ohio
it doesnt meet the requirements for your diesel engine I'd pass.
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2017 Jeep Cherokee Trailhawk V6

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#4624660 - 01/05/18 09:02 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
Alex_V Online   content


Registered: 04/10/16
Posts: 1155
Loc: Campbellsville, KY
Does it carry any diesel API certifications? If not, I wouldn't run it. HDMO is frequently used in PCMO applications - but not the reverse.
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I like Chevy and Valvoline.

'13 Cruze, 1.4T, 112K
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#4624666 - 01/05/18 09:07 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: Alex_V]
Artem Offline


Registered: 10/30/10
Posts: 5117
Loc: Florida
Originally Posted By: Alex_V
Does it carry any diesel API certifications? If not, I wouldn't run it. HDMO is frequently used in PCMO applications - but not the reverse.


Just because the petrol spec oil didn't PAY for diesel certification, doesn't mean the oil won't work.

If anything, I wouldn't run it the typical length OCI but trim it down a notch just in case the oil can't handle the soot as well (although I'm willing to bet it will handle it just dandy).

Run some 5k OCIs and consider it a cheap flush. Hahah.
_________________________
2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart.

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#4624667 - 01/05/18 09:07 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
Donald Offline


Registered: 03/21/04
Posts: 20456
Loc: Upstate NY
Use only diesel rated oil.
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2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#4624668 - 01/05/18 09:07 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
JMJNet Offline


Registered: 09/06/07
Posts: 934
Loc: TX, USA
The diesel oil have the "C" rating like CJ-4 or CK-4 newest.
Gasser oil have the "S" rating like SN, SM, etc.
It is not based on viscosity.

The diesel rated oil have the soot dispersant which float the soot in the oil, hence, diesel oil becomes black fast if it is doing its job.

Just a little bit thing that I have learned from BITOG.
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#4624671 - 01/05/18 09:10 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: Artem]
BlackBeard Offline


Registered: 12/06/15
Posts: 85
Loc: Yucaipa, CA
Originally Posted By: Artem
Originally Posted By: Alex_V
Does it carry any diesel API certifications? If not, I wouldn't run it. HDMO is frequently used in PCMO applications - but not the reverse.


Just because the petrol spec oil didn't PAY for diesel certification, doesn't mean the oil won't work.

If anything, I wouldn't run it the typical length OCI but trim it down a notch just in case the oil can't handle the soot as well (although I'm willing to bet it will handle it just dandy).

Run some 5k OCIs and consider it a cheap flush. Hahah.


Yes thatís what Iím thinking. Both engines internally are the same as a car and this diseases have [censored] near the same architecture.

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#4624675 - 01/05/18 09:14 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
CT8 Offline


Registered: 10/09/14
Posts: 10967
Loc: Idaho
The oil will keep the parts seperated and not kill the engine but it may not have enough anti foam for the best operation of the HEUI injectors as the worst thing or have the TBN reserve.. My wife has a 2002 7.3 and the manual says something like that. There used to be available anti foam additive you cauld buy . Check the 7.3 diesel websites. I would select a HDEO to run in my wifes 7.3. Give the oil a try.
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"Don't let your preconceived notions get in the way of facts."
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#4624689 - 01/05/18 09:26 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
BrocLuno Offline


Registered: 09/06/15
Posts: 5514
Loc: Kalifornia Kollective
I would only use it as a top-up oil for the diesel. Not the correct add pak. Good enough base oil. But, those injectors are touchy about lube. Not worth the headache if one decides it's not happy ...
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4624694 - 01/05/18 09:28 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BrocLuno]
CT8 Offline


Registered: 10/09/14
Posts: 10967
Loc: Idaho
Broc. why do I try? You nailed it.
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"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4624747 - 01/05/18 10:19 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
PiperOne Offline


Registered: 10/25/17
Posts: 184
Loc: A Highway Near You
Originally Posted By: BlackBeard


Yes thatís what Iím thinking. Both engines internally are the same as a car and this diseases have [censored] near the same architecture.


A diesel engine with fuel injectors that get actuated by high pressure engine oil, has greater bearing loads, has a turbo exposed to much higher temps/speeds and, generates soot......YA..that's the same as a car gas engine...

This oil doesn't have anything close to a diesel spec, let alone anything Ford would be happy with..especially in the 10w40 grade. Lots of better syn and conv oil choices for you.
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HDEO in Diesel Engines. No spark plugs here.

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#4624833 - 01/05/18 11:29 AM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
dogememe Offline


Registered: 04/15/17
Posts: 599
Loc: SF BAY AREA, CA
no, don't do that. you're trying to save a few bucks but it might cost you big bucks when something goes wrong.


Edited by dogememe (01/05/18 11:30 AM)
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2007 Ford Crown Vic P71 4.6 ~124K Miles, SynPower 5W-30, Royal Purple Filter.
2010 Ford Escape 2.5 ~70K Miles, SynPower 5W-30, Wix.
1997 Chevy Suburban 5.7 ~214K Miles, O'Reilly FSHM, MicroGard.

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#4624881 - 01/05/18 12:06 PM Re: Any harm running Castrol edge 10/40 in diesel? [Re: PiperOne]
BlackBeard Offline


Registered: 12/06/15
Posts: 85
Loc: Yucaipa, CA
Originally Posted By: PiperOne
Originally Posted By: BlackBeard


Yes thatís what Iím thinking. Both engines internally are the same as a car and this diseases have [censored] near the same architecture.


A diesel engine with fuel injectors that get actuated by high pressure engine oil, has greater bearing loads, has a turbo exposed to much higher temps/speeds and, generates soot......YA..that's the same as a car gas engine...

This oil doesn't have anything close to a diesel spec, let alone anything Ford would be happy with..especially in the 10w40 grade. Lots of better syn and conv oil choices for you.


Thereís many car engines that run even higher temperature turbos, bearing loads, you name it. Iím asking for anyone that is familiar with the oil composition. Not people just reading out of an owners manual. I run many different oils in different applications based on ad packs with no ill effects, this has a high TBN and high anti wear additives so unless you can provide an educated response please leave the opinions out

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#4624949 - 01/05/18 01:19 PM Re: Any harm running Castrol edge 10/40 in diesel? [Re: PiperOne]
dlundblad Offline


Registered: 09/30/13
Posts: 10028
Loc: Indiana
FWIW, itís an A3/B4 (gas and light duty diesel.) so itís wrong to say it doesnít have anything close to a diesel spec.
_________________________
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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#4624951 - 01/05/18 01:20 PM Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard]
kschachn Offline


Registered: 12/26/05
Posts: 9395
Loc: Upper Midwest
Originally Posted By: BlackBeard
Thereís many car engines that run even higher temperature turbos, bearing loads, you name it. Iím asking for anyone that is familiar with the oil composition. Not people just reading out of an owners manual. I run many different oils in different applications based on ad packs with no ill effects, this has a high TBN and high anti wear additives so unless you can provide an educated response please leave the opinions out

OK, sure. To me though, the educated person is the one who knows what specification his engine requires and then finds an oil that carries that specification. The reverse is coming on an Internet chat board and asking if an oil that does not carry the specification is acceptable for use. I don't know about you, but I am incapable of determining whether an oil meets a certification standard via spec sheet data or a VOA, but perhaps you are able to do so. I only know that when an oil states it meets the spec then it meets the spec. Maybe that's just me.

Based on your response above I think you've already made up your mind, right? Is the problem that the majority of the responses here didn't agree with what you wanted to hear?
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1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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