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Oil for Focus RS - Unusual Spec #4482302
08/07/17 09:35 PM
08/07/17 09:35 PM
Joined: Jul 2014
Posts: 27
Ohio
Atomic Offline OP
Atomic  Offline OP
Joined: Jul 2014
Posts: 27
Ohio
I have just purchased a fully optioned Focus RS in Stealth Gray, and will be taking delivery in Florida and driving it northern Illinois, then to Ohio, putting about 1700 miles on it in the next few days.

Ford specs 5w-50 with the following note:

"If you are unable to find an engine oil that meets the specification defined by WSS-M2C931-C, it is acceptable to use a motor oil of the recommended viscosity grade that meets API SN requirements and displays the API Certification Mark for gasoline engines. Do not use oil labeled with API SN service category unless the label also displays the API certification mark."

I'm not familiar with the spec above and which oils are well regarded in this grade, and want to make sure I'm taking excellent care of this highly stressed motor (2.3l DI Turbo, 350hp).

I will stick to 5w-50 for warranty reasons, so what do you recommend?

Thanks!


1997 Chevrolet Camaro (CAI, Borla Catback, lowered 1.5")- 183k
2016 Ford Focus RS (Stealth Grey)- 15k
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482304
08/07/17 09:39 PM
08/07/17 09:39 PM
Joined: Dec 2006
Posts: 19,135
Dallas,Tx USA
aquariuscsm Online content
aquariuscsm  Online Content
Joined: Dec 2006
Posts: 19,135
Dallas,Tx USA
Castrol Edge 5W50. It's always easy to find it on sale pretty cheap.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 5W20

Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482307
08/07/17 09:40 PM
08/07/17 09:40 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482316
08/07/17 09:56 PM
08/07/17 09:56 PM
Joined: Aug 2003
Posts: 1,060
Vancouver, Canada
jaj Offline
jaj  Offline
Joined: Aug 2003
Posts: 1,060
Vancouver, Canada
Originally Posted By: Atomic
I have just purchased a fully optioned Focus RS in Stealth Gray, and will be taking delivery in Florida and driving it northern Illinois, then to Ohio, putting about 1700 miles on it in the next few days.

Ford specs 5w-50 with the following note:

"If you are unable to find an engine oil that meets the specification defined by WSS-M2C931-C, it is acceptable to use a motor oil of the recommended viscosity grade that meets API SN requirements and displays the API Certification Mark for gasoline engines. Do not use oil labeled with API SN service category unless the label also displays the API certification mark."

I'm not familiar with the spec above and which oils are well regarded in this grade, and want to make sure I'm taking excellent care of this highly stressed motor (2.3l DI Turbo, 350hp).

I will stick to 5w-50 for warranty reasons, so what do you recommend?

Thanks!


Three oils actually meet that spec: Motorcraft 5w50, Lucas 5w-50 and Amsoil 5w50. Your Ford dealer can help with the first one (it's in the Boss 302, GT500 and GT350 engines) and there are other retailers that can help with the other two.

Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482320
08/07/17 10:24 PM
08/07/17 10:24 PM
Joined: Dec 2002
Posts: 6,600
Huntington Beach, CA
tenderloin Offline
tenderloin  Offline
Joined: Dec 2002
Posts: 6,600
Huntington Beach, CA

"Three oils actually meet that spec: Motorcraft 5w50, Lucas 5w-50 and Amsoil 5w50."
Does the Lucas oil meet SN spec as well as have the API certification mark? I visited the Lucas site and a few others and have trouble verifying those two must haves. Of course at my age I could have missed it..

Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482322
08/07/17 10:28 PM
08/07/17 10:28 PM
Joined: Dec 2011
Posts: 5,118
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 5,118
North Carolina
I wouldn't hesitate to use Mobil 1 FS X2 5W-50.


"Zed's dead baby, Zed's dead."
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482329
08/07/17 10:53 PM
08/07/17 10:53 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
Why not buy it at the dealer if availability is a concern? I am sure they will carry at least a few gallons of Motorcraft


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482331
08/07/17 10:59 PM
08/07/17 10:59 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
You could run 15w50 and that opens up more choices. The motorcraft seems the way to go. Check Amazon etc. the M1 5w50 is a good option alsoW


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Oil for Focus RS - Unusual Spec [Re: tenderloin] #4482332
08/07/17 11:00 PM
08/07/17 11:00 PM
Joined: Aug 2003
Posts: 1,060
Vancouver, Canada
jaj Offline
jaj  Offline
Joined: Aug 2003
Posts: 1,060
Vancouver, Canada
Originally Posted By: tenderloin

"Three oils actually meet that spec: Motorcraft 5w50, Lucas 5w-50 and Amsoil 5w50."
Does the Lucas oil meet SN spec as well as have the API certification mark? I visited the Lucas site and a few others and have trouble verifying those two must haves. Of course at my age I could have missed it..


No, you're correct. I checked the EOLCS and Lucas 5w50 is licensed at API SM. But that doesn't stop it from meeting the Ford WSS-M2C931-C spec. In any case, the Lucas bottle says it meets 931-C, and that's the best info we have. The same is true of Amsoil 5w50 - according to EOLCS, it's not API licensed at all, but according to Amsoil (the factory, not the resellers) it meets the Ford spec.

Castrol and Mobil 1 don't meet the Ford spec because they have too much phosphorus - 931C limits it to 800PPM and they have about 1,000. Lucas, M'craft and Amsoil are all less than 800 PPM.

Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482334
08/07/17 11:04 PM
08/07/17 11:04 PM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
I'll take Castrol or M1, they might not meet that phosphorus limit but they won't underperform. Ford is trading some protection for a reduction in catalytic converter poisoning


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482346
08/07/17 11:36 PM
08/07/17 11:36 PM
Joined: Jun 2014
Posts: 2,739
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline
Joined: Jun 2014
Posts: 2,739
Phoenix, Arizona - USA
Amazon has Quaker State Ultimate Durability- 5w50 quart, 6-pack for under $42. Under $7 a quart for 5w50 QSUD is pretty darn good.


2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 266,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 60,000mi
Re: Oil for Focus RS - Unusual Spec [Re: SilverFusion2010] #4482371
08/08/17 02:44 AM
08/08/17 02:44 AM
Joined: Nov 2011
Posts: 4,015
Lima, Ohio, USA
earlyre Offline
earlyre  Offline
Joined: Nov 2011
Posts: 4,015
Lima, Ohio, USA
Originally Posted By: SilverFusion2010

I put this car into the oil finder on the Mobil website, and got this response:
"Based on what you've told us, your vehicle manufacturer recommends a 5W-50 viscosity and oil that meets Ford WSS-M2C931-C. We currently do not offer any motor oils in the United States that meet these specifications. The recommended oil filter is M1-102/M1-102A."


Mine:
09 Mercury Sable : 6qts AutoQuest(Meijer/Warren) 0w20, WIX 51516
Mine to Maintain:
03 Pontiac Vibe : 4.5qts VWB 5w30,WIX 51394
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482398
08/08/17 05:12 AM
08/08/17 05:12 AM
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,803
Crawfordville FL
Because it has more than 800ppm phosphorus.


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482407
08/08/17 05:32 AM
08/08/17 05:32 AM
Joined: Nov 2006
Posts: 20,594
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,594
MA, Mittelfranken.de
No 0w20 fans? hide


ASE L1, Master. Deutsch Meisterbrief.
Re: Oil for Focus RS - Unusual Spec [Re: Atomic] #4482441
08/08/17 06:54 AM
08/08/17 06:54 AM
Joined: Dec 2003
Posts: 9,929
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,929
Florida, Cape Coral
I'd use Ford oil because there is no guessing. Ed


CX5 Touring 2.5L :-)
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