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Pick one and why? Mobil 0W40 vs Castrol 0W40 #4537054
10/08/17 10:47 AM
10/08/17 10:47 AM
Joined: Mar 2012
Posts: 804
BerksCounty/Pa.
thorromig Offline OP
thorromig  Offline OP
Joined: Mar 2012
Posts: 804
BerksCounty/Pa.
Just changed the oil in the Jetta in signature this weekend. Initially I picked up the 5 quart jug of Mobil One 0W40 & then put it back down & grabbed the 5 quart jug of Castrol Edge 0W40 which I used in the VW. Either one I believe is a win win but what would you have picked & why?


00 Dodge Ram 5.2L 4x4 Edge 10W30 FU (91K)
08 Acura TL Type S 3.5L PUPP 5W20 FU (101K)
17 Jetta TSI SE 1.4L Turbo - Edge 0W40 FU (Hers) (4K)
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537067
10/08/17 10:54 AM
10/08/17 10:54 AM
Joined: Sep 2015
Posts: 6,090
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,090
Kalifornia Kollective
M1 on sale with rebate laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537070
10/08/17 10:56 AM
10/08/17 10:56 AM
Joined: Aug 2011
Posts: 102
Northern VA
homeyclaus Offline
homeyclaus  Offline
Joined: Aug 2011
Posts: 102
Northern VA
Cheapest.

I think for most applications, Castrol, new formula M1, and PUP Euro in 0w40 weights will perform pretty much identically. There was some discussion about the reformulated M1 having lost BMW LL certification and what that really meant, but they're all eminently serviceable.


2013 Toyota Tundra CM 5.7L TRD (M1 0w20/PUP0w40euro, WIX/CQ filter)
2010 Mercedes E550 4Matic (PP 0W40 Euro, Mann)
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537088
10/08/17 11:12 AM
10/08/17 11:12 AM
Joined: Mar 2008
Posts: 7,348
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,348
USA
M1 lost some certifications, but Castrol still has them, so my answer is Castrol smile

Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537094
10/08/17 11:18 AM
10/08/17 11:18 AM
Joined: Apr 2012
Posts: 5,601
MA
Wolf359 Offline
Wolf359  Offline
Joined: Apr 2012
Posts: 5,601
MA
At the same price, Castrol for the reason mentioned above, Mobil 1 doesn't have LL-01 certification anymore. However with the $12 Mobil rebate through the end of October, Mobil. In your case it doesn't matter so Mobil would be the way to go. In my case, I need MB 229.5 and they both have it so it's the same thing.

Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: homeyclaus] #4537098
10/08/17 11:22 AM
10/08/17 11:22 AM
Joined: Oct 2009
Posts: 3,529
Wet side WA
JohnnyJohnson Online content
JohnnyJohnson  Online Content
Joined: Oct 2009
Posts: 3,529
Wet side WA
Originally Posted By: homeyclaus
Cheapest.

I think for most applications, Castrol, new formula M1, and PUP Euro in 0w40 weights will perform pretty much identically. There was some discussion about the reformulated M1 having lost BMW LL certification and what that really meant, but they're all eminently serviceable.


This is the correct answer.


2004 Corolla 126884
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537106
10/08/17 11:32 AM
10/08/17 11:32 AM
Joined: Dec 2011
Posts: 5,122
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 5,122
North Carolina
Castrol. More OEM approvals.


"Zed's dead baby, Zed's dead."
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537118
10/08/17 11:49 AM
10/08/17 11:49 AM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
How would you ever figure out if one is better than the other?

Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: OneEyeJack] #4537129
10/08/17 11:56 AM
10/08/17 11:56 AM
Joined: Sep 2010
Posts: 7,517
Texas & Global
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,517
Texas & Global
By getting either on sale … BMW is like 2% of US market share and 40% of the sites posts.


2018 Chevy 1500 Z71 4WD
2017 Chevy Tahoe LT 4WD
2014 Fusion Hybrid Titanium
2013 Cruze LTZ - RS Turbo
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537157
10/08/17 12:22 PM
10/08/17 12:22 PM
Joined: May 2017
Posts: 107
ST Augustine, FL
exShuttlemech Offline
exShuttlemech  Offline
Joined: May 2017
Posts: 107
ST Augustine, FL
Mobil 1 0W40 FS has the highest Film Strength of any oil tested, according to RAT 540's testing methods. Castrol's European website touts their film strength increases, but these are not born out in RAT 540's testing.

Last edited by exShuttlemech; 10/08/17 12:24 PM.

2010 Rav4 4cyl 131K QSUD 0W20 Baldwin bypass filter
2003 4Runner 4.0L 219K 0W40 M1 Frantz bypass
2007 F150 4.2L 169K 5W30 QSUD
2016 NV2500
2017 RAV4
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: exShuttlemech] #4537185
10/08/17 12:46 PM
10/08/17 12:46 PM
Joined: May 2017
Posts: 107
ST Augustine, FL
exShuttlemech Offline
exShuttlemech  Offline
Joined: May 2017
Posts: 107
ST Augustine, FL
"115 YEARS OF PUSHING THE BOUNDARIES
Ever since our early breakthroughs in the late 19th century, Castrol has always been driven by a restless spirit of innovation and a determination to push the boundaries of what is possible - with the constant goal of developing the best engine oils.

Castrol EDGE is proud to drive the pioneer spirit of Castrol, challenging the technical frontiers of strength to progress, discover and breakthrough. We celebrate and partner with those who do the same. That's why world-leading car manufacturers continue to choose Castrol. The thrill and excitement of creating and redefining what's possible drives everything we do.
SHAPING THE AUTOMOTIVE INDUSTRY FOR WELL OVER A CENTURY
When our founder Charles Cheers Wakefield patented his first lubricant, he worked with customers and world-leading pioneers in the motorcar, motorcycle and aviation industries. That innovative, collaborative spirit has kept Castrol at the forefront of cutting-edge engine oil technology - now with the doubling in oil film strength with Castrol EDGE, our strongest ever oil.
DID YOU KNOW?
The land speed record has been broken an amazing 21 times with Castrol
Since the 1980s, Castrol has supplied NASA with lubricants for the space shuttle program
Castrol helped Concorde reach speeds of up to mach 2
Castrol reinvented motor oil by introducing additive technology, to neutralise impurities and keep engines cleaner
The TITANIUM FST™ in Castrol EDGE physically changes the way oil behaves under extreme pressures
Castrol has long been the trusted technical partner for some of the world's most demanding motorsport teams"


2010 Rav4 4cyl 131K QSUD 0W20 Baldwin bypass filter
2003 4Runner 4.0L 219K 0W40 M1 Frantz bypass
2007 F150 4.2L 169K 5W30 QSUD
2016 NV2500
2017 RAV4
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: exShuttlemech] #4537201
10/08/17 12:57 PM
10/08/17 12:57 PM
Joined: Dec 2009
Posts: 26,263
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline
Joined: Dec 2009
Posts: 26,263
Regina, Saskatchewan, Canada
Originally Posted By: exShuttlemech
Mobil 1 0W40 FS has the highest Film Strength of any oil tested, according to RAT 540's testing methods. Castrol's European website touts their film strength increases, but these are not born out in RAT 540's testing.

Which means what? Honestly, I've never seen a motor oil company's marketing department tout their position in his nebulous list.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: thorromig] #4537231
10/08/17 01:29 PM
10/08/17 01:29 PM
Joined: Sep 2015
Posts: 3,954
Connecticut
69GTX Online content
69GTX  Online Content
Joined: Sep 2015
Posts: 3,954
Connecticut
I'd pick M1 0w-40 as I want my cars (non-DI) to have a steady diet of high calcium, no magnesium, no sodium oils. Castrol 0w-40 is high magesium and low calcium. It doesn't hurt that M1 is consistently on sale. The loss of LL-01 is irrelevant to me.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: Garak] #4537357
10/08/17 04:23 PM
10/08/17 04:23 PM
Joined: May 2017
Posts: 107
ST Augustine, FL
exShuttlemech Offline
exShuttlemech  Offline
Joined: May 2017
Posts: 107
ST Augustine, FL
" now with the doubling in oil film strength with Castrol EDGE, our strongest ever oil."
Means that Castrol apparently thinks that film strength is of some importance.


2010 Rav4 4cyl 131K QSUD 0W20 Baldwin bypass filter
2003 4Runner 4.0L 219K 0W40 M1 Frantz bypass
2007 F150 4.2L 169K 5W30 QSUD
2016 NV2500
2017 RAV4
Re: Pick one and why? Mobil 0W40 vs Castrol 0W40 [Re: exShuttlemech] #4537361
10/08/17 04:28 PM
10/08/17 04:28 PM
Joined: Jun 2011
Posts: 7,161
Mahzurrah!
KCJeep Online content
KCJeep  Online Content
Joined: Jun 2011
Posts: 7,161
Mahzurrah!
Originally Posted By: exShuttlemech
" now with the doubling in oil film strength with Castrol EDGE, our strongest ever oil."
Means that Castrol apparently thinks that film strength is of some importance.


I think it is...but Rat's stuff is pure witchcraft.

Check out Amsoil's TEOST tests...Castrol rocked the field.

At any rate my pick would be Castrol...it carries more certs and IMO it's a better oil anyway. If you want to buy off the shelf at Wally's IMO there is nothing equal sitting next to it. I have used tons of various Castrol lubes for years and have been very satisfied. Never particularly cared for Mobil not that I would be the slightest bit concerned if I had to use it, in fact M1 EP was one of the oils I recommended to my son when he became interested in extended OCI's. He picked the Mobil.

To each his own.


2018 VW Passat GT VR6 - 2k - New FF
12 KIA Sedona 93k - PP HM 10w30
09 Ford Focus 132k - Supertech FS HM 5w30
00 Chev Lumina 203k - Supertech FS HM 5w30
04 Jeep Grand Cherokee gone but not forgotten.
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