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Mobil 1 15w50 vs Valvoline Premium Blue 15w40 #4586086
11/26/17 09:12 PM
11/26/17 09:12 PM
Joined: Nov 2017
Posts: 11
Ohio
Skier Offline OP
Skier  Offline OP
Joined: Nov 2017
Posts: 11
Ohio
just wondered are these 2 oils pretty comparable ? I know one is a dino oil. Will be using in high load situations.

Re: Mobil 1 15w50 vs Valvoline Premium Blue 15w40 [Re: Skier] #4586175
11/26/17 11:04 PM
11/26/17 11:04 PM
Joined: Dec 2004
Posts: 426
Dayton,Ohio
ShotGun429 Offline
ShotGun429  Offline
Joined: Dec 2004
Posts: 426
Dayton,Ohio
They are very equal with great results here at the Speed Shop, a sight edge to Valvoline after looking at many teardowns with high loading.

Re: Mobil 1 15w50 vs Valvoline Premium Blue 15w40 [Re: Skier] #4586197
11/26/17 11:45 PM
11/26/17 11:45 PM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
One is a PCMO and one is a HDEO.

Don't know much about either oil otherwise. High RPM might favor the M1 but that's just speculation


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: Mobil 1 15w50 vs Valvoline Premium Blue 15w40 [Re: SilverFusion2010] #4586201
11/26/17 11:59 PM
11/26/17 11:59 PM
Joined: Sep 2010
Posts: 7,003
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,003
Texas
Maybe MolaKule or SonofJoe could note something on anti foam from a oil category perspective … I know NMMA gets little respect from this crowd but do test for high RPM foaming …
An outboard mechanic wrote in on a blog where he ran a twin engine boat for an hour WOT … the test was with PCMO in one and FCW in one … claims to have pulled a “corn dog” dipstick on the road oil and pure oil on the marine grade …
Don’t see why HDEO has more focus on RPM than PCMO or marine ?
Please advise …

Re: Mobil 1 15w50 vs Valvoline Premium Blue 15w40 [Re: Skier] #4586304
11/27/17 07:48 AM
11/27/17 07:48 AM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
Typically diesels don't wind out to 6k rpm. They make their torque down low. So I'm theorizing that the PCMO has more anti foaming agent than the HDEO.

Again... speculation.


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: Mobil 1 15w50 vs Valvoline Premium Blue 15w40 [Re: Skier] #4586458
11/27/17 11:13 AM
11/27/17 11:13 AM
Joined: Nov 2013
Posts: 3,212
Kentucky
Ramblejam Offline
Ramblejam  Offline
Joined: Nov 2013
Posts: 3,212
Kentucky
Few notes...

NMMA FC-W has same requirements on ASTM D892 as API SN:

Sequence I, ml initial/ml after settling: 10 / 0
Sequence II, ml initial/ml after settling: 50 / 0
Sequence III, ml initial/ml after settling: 10 / 0

NMMA FC-W has lower requirements on ASTM D6082 as API SN:

Sequence IV, ml initial/ml after settling for 1 minute: 200 / 50 (NMMA)
Sequence IV, ml initial/ml after settling for 1 minute: 100 / 0 (API)

API CK-4 has higher requirements on ASTM D892 as API SN:

Sequence I, ml initial/ml after settling: 10 / 0
Sequence II, ml initial/ml after settling: 20 / 0
Sequence III, ml initial/ml after settling: 10 / 0

API CK-4 also has to meet COAT requirements:

Re: Mobil 1 15w50 vs Valvoline Premium Blue 15w40 [Re: Skier] #4587246
11/28/17 08:07 AM
11/28/17 08:07 AM
Joined: Nov 2017
Posts: 11
Ohio
Skier Offline OP
Skier  Offline OP
Joined: Nov 2017
Posts: 11
Ohio
thank you. Some of this is a little over my head - but the Premium Blue is showing CK-4 and SN - so it seems I should be good with that.

Last edited by Skier; 11/28/17 08:08 AM.

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