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#3012222 - 05/24/13 02:10 PM Mobil 1 EP vs Amsoil Signature Series 5W-30
BerndV Offline


Registered: 04/02/08
Posts: 244
Loc: Kalispell, Montana
Thoughts on which is the superior 5W-30? I am switching from Redline (I believe it was dumbed down a bit recently and is no longer worth the price premium) after using it for the last 135,000 miles and am trying to choose between the two for the remaining life of my 2005 Sequoia. I considered PU but it is unavailable at the Wally World here and everywhere else it is more expensive than Amsoil with PC pricing. Amsoil seems to have a slight edge on paper (pour point, Amsoil advertising http://www.amsoil.com/lit/g3115.pdf ) However, the M1 EP pricing at WM is such an amazing deal for a synthetic. I even considered M1 0W-40 but I can't see any advantage over 5W-30 EP.
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2014 Mercedes E550 4Matic
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#3012241 - 05/24/13 02:18 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
pennzoil_guru Offline


Registered: 11/05/04
Posts: 173
Loc: Northern York Region, Ontario,...
They are both excellent oils. Use whichever you can get cheaper and do UOAs if you are going to extend the OCI
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2011Toyota Matriix
2006 Toyota Sienna
Both TGMO 0W20


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#3012250 - 05/24/13 02:25 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
StevieBoy Offline


Registered: 08/06/12
Posts: 135
Loc: Central Florida
I like M1 EP for availability & 15k mi. OCI. If you prefer longer OCI's then Amsoil Sig is a good bet.
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#3012293 - 05/24/13 03:14 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
buster Offline


Registered: 11/16/02
Posts: 29477
Loc: NJ
Quote:
Amsoil seems to have a slight edge on paper (pour point, Amsoil advertising http://www.amsoil.com/lit/g3115.pdf ) However, the M1 EP pricing at WM is such an amazing deal for a synthetic


^+1.
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#3012295 - 05/24/13 03:15 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
Cup of Joe Offline


Registered: 01/16/06
Posts: 1803
Loc: United We Stand
How many miles between OCI or how much time between OCI? Both should be good for 15k OCI after that it is a bit unclear. Shopping by cost only M1 hands down.
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#3012309 - 05/24/13 03:29 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: Cup of Joe]
asharris7 Offline


Registered: 08/24/12
Posts: 511
Loc: Greensboro NC, USA
Quality = Even
Price = M1

If Mobil made an Ow-20 EP I'd be all over it.
_________________________
2015 Volkswagen Passat TDI (company car/free oil changes)
2011 Honda Odyssey
Right now: PP 0W-20(Fram Ultra)
Amsoil ATL in the Trans

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#3012315 - 05/24/13 03:35 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
BerndV Offline


Registered: 04/02/08
Posts: 244
Loc: Kalispell, Montana
It's been forever since I've used it (Castrol lawsuit era), but I think I'll give the M1 a try. SN/GF-5 has really raised the bar for non-boutique synthetics. I just bought two six packs of M1 5W-30 EP plus two M1-209 oil filters for $103.58 with free two day delivery. Subtract the $30.00 Amazon Fast & Furious rebate and that nets me 12 quarts plus two M1 filters for $73.58.
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#3012396 - 05/24/13 05:06 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
901Memphis Offline


Registered: 08/14/10
Posts: 8081
Loc: Northern Kentucky
M1 all the way unless you like paying more for little benefit.
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#3012462 - 05/24/13 06:14 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
Art_Vandelay Offline


Registered: 11/30/08
Posts: 1339
Loc: USA
Originally Posted By: BerndV
I even considered M1 0W-40 but I can't see any advantage over 5W-30 EP.


Mobil 1 0W-40 is superior to any EP formula. If you can run a 40 weight.
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#3012474 - 05/24/13 06:20 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: Art_Vandelay]
BerndV Offline


Registered: 04/02/08
Posts: 244
Loc: Kalispell, Montana
Originally Posted By: Art_Vandelay
Originally Posted By: BerndV
I even considered M1 0W-40 but I can't see any advantage over 5W-30 EP.


Mobil 1 0W-40 is superior to any EP formula. If you can run a 40 weight.


In what regard is it superior?
_________________________
2014 Mercedes E550 4Matic
Das Beste oder nichts!

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#3012501 - 05/24/13 06:55 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
Art_Vandelay Offline


Registered: 11/30/08
Posts: 1339
Loc: USA
Originally Posted By: BerndV
Originally Posted By: Art_Vandelay
Originally Posted By: BerndV
I even considered M1 0W-40 but I can't see any advantage over 5W-30 EP.


Mobil 1 0W-40 is superior to any EP formula. If you can run a 40 weight.


In what regard is it superior?


Mobil 1 0W-40 meets all these specs:

- Mercedes MB 229.5
- MB-Approval 229.3
- Porsche A40
- GM-LL-A-025 (gasoline)
- GM-LL-B-025 (diesel)
- BMW Longlife 01
- VW 502 00/505 00/503 01
- OPEL Long Life Service Fill GM-LL-A-025
- OPEL Diesel Service Fill GM-LL-B-025
- NISSAN GT-R
- ACEA A3/B3, A3/B4

When you're considering Mobil EP you're talking about Extended Protection aren't you? Well the Long Life specs that 0W-40 carries are all extended protection specifications. These are the strictest specifications for motor oil in the world and it meets them all.
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#3012524 - 05/24/13 07:21 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: Art_Vandelay]
BerndV Offline


Registered: 04/02/08
Posts: 244
Loc: Kalispell, Montana
I agree that 0W-40 is a terrific oil. That is why I had considered it. However, the 5W-30 EP may meet those specs you cite that apply to a 5W-30 viscosity. We simply don't know because EM has not bothered to pay the licensing for 5W-30 EP for those specs, just like it hasn't gotten dexos1 or HTO-06 for 0W-40. I'm guessing this is because of the different viscosity recommendations that generally differentiate the Asian and US brands from the European brands. I don't think we know that the 0W-40 is any "better" than 5W-30 EP in any regard that takes into account their viscosity difference.
_________________________
2014 Mercedes E550 4Matic
Das Beste oder nichts!

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#3012538 - 05/24/13 07:34 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
buster Offline


Registered: 11/16/02
Posts: 29477
Loc: NJ
They are very different though. M1 EP is a low SAP oil with a SA of .8 and the 0w40 is full SAP with a SA of 1.3. Different chemistry. I would lean towards saying the 0w40 is the better one. Probably the best overall oil you can buy anywhere.
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#3012560 - 05/24/13 07:53 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
147_Grain Offline


Registered: 03/11/13
Posts: 1838
Loc: USA
Mobil 1 0W-40 is on GM's list of licensed dexos2 products with the ESP designator as a Global Oil.

http://www.gmdexos.com/licensedbrands/dexos2licensedbrands.html

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#3012580 - 05/24/13 08:13 PM Re: Mobil 1 EP vs Amsoil Signature Series 5W-30 [Re: BerndV]
Art_Vandelay Offline


Registered: 11/30/08
Posts: 1339
Loc: USA
Originally Posted By: BerndV
I don't think we know that the 0W-40 is any "better" than 5W-30 EP in any regard that takes into account their viscosity difference.


The way we know it's better is by looking at the obvious. It's factory filled, and or approved for use in, many of the worlds most high performance and sophisticated automobiles. These are vehicles which spare no expense in the pursuit of the very best.

Mobil 1 EP doesn't meet a single specification that can't be met by standard Mobil 1. Not a single one.
_________________________
It all started when I decided to get my oil analyzed instead of my head examined...

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