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Any harm running Castrol edge 10/40 in diesel? #4624652
01/05/18 09:59 AM
01/05/18 09:59 AM
Joined: Dec 2015
Posts: 85
Yucaipa, CA
BlackBeard Offline OP
BlackBeard  Offline OP
Joined: Dec 2015
Posts: 85
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.

Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624656
01/05/18 10:01 AM
01/05/18 10:01 AM
Joined: Aug 2003
Posts: 12,901
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 12,901
NE,Ohio
it doesnt meet the requirements for your diesel engine I'd pass.


2019 Jeep Cherokee Trailhawk 2.0T
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624660
01/05/18 10:02 AM
01/05/18 10:02 AM
Joined: Apr 2016
Posts: 1,185
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,185
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.


I like Chevy and Valvoline.

'13 Cruze, 1.4T, 113K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 169K
'67 Suburban, 350, 331K
Re: Any harm running Castrol edge 10/40 in diesel? [Re: Alex_V] #4624666
01/05/18 10:07 AM
01/05/18 10:07 AM
Joined: Oct 2010
Posts: 5,287
Florida
Artem Offline
Artem  Offline
Joined: Oct 2010
Posts: 5,287
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. (thanks Advance Auto Parts for the awesome deal)
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624667
01/05/18 10:07 AM
01/05/18 10:07 AM
Joined: Mar 2004
Posts: 20,758
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,758
Upstate NY
Use only diesel rated oil.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624668
01/05/18 10:07 AM
01/05/18 10:07 AM
Joined: Sep 2007
Posts: 968
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 968
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.


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


Re: Any harm running Castrol edge 10/40 in diesel? [Re: Artem] #4624671
01/05/18 10:10 AM
01/05/18 10:10 AM
Joined: Dec 2015
Posts: 85
Yucaipa, CA
BlackBeard Offline OP
BlackBeard  Offline OP
Joined: Dec 2015
Posts: 85
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.

Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624675
01/05/18 10:14 AM
01/05/18 10:14 AM
Joined: Oct 2014
Posts: 11,855
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,855
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.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624689
01/05/18 10:26 AM
01/05/18 10:26 AM
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,858
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 ...


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BrocLuno] #4624694
01/05/18 10:28 AM
01/05/18 10:28 AM
Joined: Oct 2014
Posts: 11,855
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,855
Idaho
Broc. why do I try? You nailed it.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624747
01/05/18 11:19 AM
01/05/18 11:19 AM
Joined: Oct 2017
Posts: 203
A Highway Near You
PiperOne Offline
PiperOne  Offline
Joined: Oct 2017
Posts: 203
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.


HDEO in Diesel Engines. No spark plugs here.
Re: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624833
01/05/18 12:29 PM
01/05/18 12:29 PM
Joined: Apr 2017
Posts: 966
SF BAY AREA, CA
dogememe Offline
dogememe  Offline
Joined: Apr 2017
Posts: 966
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.

Last edited by dogememe; 01/05/18 12:30 PM.

2007 Crown Vic P71 4.6 ~127K Miles, RP HPS 5W-30, RP 20-820, Daily Driver.
2010 Escape FWD 2.5 ~90K Miles, Castrol Edge EP 5W-30, Wix 51348, Rented on Turo.
Re: Any harm running Castrol edge 10/40 in diesel? [Re: PiperOne] #4624881
01/05/18 01:06 PM
01/05/18 01:06 PM
Joined: Dec 2015
Posts: 85
Yucaipa, CA
BlackBeard Offline OP
BlackBeard  Offline OP
Joined: Dec 2015
Posts: 85
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

Re: Any harm running Castrol edge 10/40 in diesel? [Re: PiperOne] #4624949
01/05/18 02:19 PM
01/05/18 02:19 PM
Joined: Sep 2013
Posts: 10,454
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,454
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 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: Any harm running Castrol edge 10/40 in diesel? [Re: BlackBeard] #4624951
01/05/18 02:20 PM
01/05/18 02:20 PM
Joined: Dec 2005
Posts: 9,900
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 9,900
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?


1994 BMW 530i, 228K
1996 Honda Accord, 263K
1999 Toyota Sienna, 400K
2000 Toyota ECHO, 271K
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