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#1493407 - 06/09/09 09:22 PM Mobil 1 EP 5w30 GM 4718M
buster Offline


Registered: 11/16/02
Posts: 29201
Loc: NJ
 Quote:
Explain Why Mobil 1 Extended Performance Not GM4718M Certified
Can you please explain the difference between GM6049M and GM4718M? I have read several answers on this site that state that using the extended performance Mobil 1 will work just as well as regular Mobil 1. I just want to understand what is different between the two specs, and what about the extended performance does not allow it to be GM4718M certified. Thanks, Clint
-- Clint Kline, Anderson, IN
Answer:
GM 6094M is based on the same specifications as ILSAC GF-4 but additionally includes some specific GM requirements. GM 4718M is the GM high performance oil specification that goes well beyond the industry standard ILSAC GF-4 and API SM specifications. The Mobil 1 grades that carry GM 4718M have been fully approved and tested against GM 4718M. The companion Mobil 1 Extended Performance viscosity grades have not been formally approved against GM 4718M but will provide the performance at GM 4718M level. Engine testing required to get formal approval is limited to certain Mobil 1 products only.


http://www.mobiloil.com/USA-English/MotorOil/Car_Care/AskMobil/Mobil_1_EP_GM_Certification.aspx
_________________________
2014 Mazda 3 S GT AT - OE oil
2003 Forester XS 5spd - M1 0w40

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#1493475 - 06/09/09 10:28 PM Re: Mobil 1 EP 5w30 GM 4718M [Re: buster]
tig1 Offline


Registered: 01/03/09
Posts: 9855
Loc: Illinois
I have already made the purchase, and that's what goes in the Focus soon.
_________________________
2007 Ford Fusion 144,000 miles
M1 0-20
2007 Ford Focus 129,000 miles
M1 0-20
10,000 mile OCIs on both engines
M1 ATF
M1 10-30 in all OPE

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#1499247 - 06/15/09 07:01 AM Re: Mobil 1 EP 5w30 GM 4718M [Re: tig1]
Spykem4e Offline


Registered: 10/23/08
Posts: 385
Loc: Montreal, canada
I just searched through the M1 site and found this:

Although we strongly recommend that consumers use the quality and type of oil specified by their car builder, you are not running any risk by using Mobil 1 Extended Performance 5W-30 in your Trailblazer SS, which calls for a GM 4718M-approved oil. With that said, we agree that you should return to using Mobil 1 5W-30, which is approved against GM 4718M, on your next oil change.

Source:
http://www.mobiloil.com/USA-English/MotorOil/Car_Care/AskMobil/Mobil1_EP_Trailblazer.aspx
_________________________
2005 Cadillac CTS
3.6l v6 vvt with 182k miles
OLM OCI (10k-15k miles)

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#1499252 - 06/15/09 07:10 AM Re: Mobil 1 EP 5w30 GM 4718M [Re: Spykem4e]
VW_TDI_PD Offline


Registered: 02/09/07
Posts: 142
Loc: Chicago, IL
Looks like they dont want to pay for the testing or something?

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#1499267 - 06/15/09 07:20 AM Re: Mobil 1 EP 5w30 GM 4718M [Re: VW_TDI_PD]
addyguy Offline


Registered: 09/08/05
Posts: 13429
Loc: Canada
I think that's EXACTLY it. Must be some expensive testing if even mighty EOM doesn't want to pony up twice for it; and so few other oils submit for the test as well.....
_________________________
2003 Mazda Tribute LX V-6, 172k miles.
Oil: QS Defy 5W-20; Fram Ultra XG2 filter.

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