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Castrol Synthetics? #4707055
03/25/18 11:40 PM
03/25/18 11:40 PM
Joined: Mar 2018
Posts: 5
Washington
bora350 Offline OP
bora350  Offline OP

Joined: Mar 2018
Posts: 5
Washington
Upon looking at the PDS for Castrol synthetics, their oils seem to be worse or equal to conventional motor oils. Very high MRV numbers, and relatively low VI. Compare it to PUP or QSUD, VI is in the 170s and very low MRV ~4000 (cP). Of course you have to realize that -35c is reaching the pour point of most oils, so the average user will never experience these extremes, but overall I'm not impressed.

Castrol EDGE High Mileage 5w-30:
Density @ 15C, Relative ASTM D4052 g/ml 0.856
Appearance Visual - Clear & Bright
Viscosity, Kinematic 100C ASTM D445 mm/s 11.3
Viscosity, CCS -30C ASTM D5293 mPa.s (cP) 6200
Pour Point ASTM D97 C -39
Viscosity, MRV / Yield Stress -35C (5W) ASTM D4684 mPa.s (cP) 35000
Viscosity, Kinematic 40C ASTM D445 mm/s 67.2
Viscosity Index ASTM D2270 None 159
Noack Volatility ASTM D5800 % Loss 10.0
Flash Point, PMCC ASTM D93 C 220

Mobile Super 5w-30:
API Service Classification SN
Gravity, API 32.9
Specific Gravity 0.8607
Pour Point, C (F) -36(-33)
Flash Point, C (F), ASTM D 92 221(430)
Viscosity
cSt at 40C 63.95
cSt at 100C 10.7
CCS, cP 6,080 @ -30C
MRV, cP 26,800 @ -35C
Viscosity Index 158



Last edited by bora350; 03/25/18 11:42 PM.
Re: Castrol Synthetics? [Re: bora350] #4707058
03/25/18 11:47 PM
03/25/18 11:47 PM
Joined: Apr 2016
Posts: 2,000
Oregon
1JZ_E46 Offline
1JZ_E46  Offline

Joined: Apr 2016
Posts: 2,000
Oregon
Castrol synthetic might as well be conventional except for their 0W-30 and 0W-40, which have a significant slug (25-50%) of PAO. The rest of their stuff is sub-par from everything I can gather. I would pick M1 or Pennzoil any day over non-0W Castrol.


2007 X5 4.8i: M1 HM 10W-30
2016 Countryman S: Castrol 0W-40
Re: Castrol Synthetics? [Re: bora350] #4707059
03/25/18 11:48 PM
03/25/18 11:48 PM
Joined: Jul 2015
Posts: 136
Alberta
BigJakeChevy Offline
BigJakeChevy  Offline

Joined: Jul 2015
Posts: 136
Alberta
Completely agree! In my pickup their oils gave me horrible start up noise and also when hot my engine sounded like a sewing machine! Won't touch them to this day!


2007 Silverado Classic 1500 Crewcab 5.3L 470,000KM
Engine oil Mobil 1 0w40fs
Oil Filter Fram Ultra 10575
Trans Oil Amsoil Torque Drive
Front Diff Amsoil SG75w90
T-Case Autotrak II
Rear Diff Amsoil SG75w110
Re: Castrol Synthetics? [Re: bora350] #4707062
03/26/18 12:03 AM
03/26/18 12:03 AM
Joined: Nov 2004
Posts: 251
Port Aransas, TX
Stevie Offline
Stevie  Offline

Joined: Nov 2004
Posts: 251
Port Aransas, TX
Running Castrol MAGNATEC 5W/30 in my wife's 2014 Elantra. Had a great UOA and engine very quiet at startup.
I think it is the intelligent molecules in MAGNATEC.
According to Castrol:
THE INTELLEGENT MOLECULES:
Cling to critical engine parts when the oil drains down
Add a layer of protection during warm-up and beyond
Dramatically reduce engine wear
Leave critical engine parts 4X smoother

Hey works for me grin
I run Mobil 1 0w40 in my SLK, but am going to try Castrol 0w40 next oil change. I hear they use Titanium.

Re: Castrol Synthetics? [Re: bora350] #4707063
03/26/18 12:07 AM
03/26/18 12:07 AM
Joined: Mar 2017
Posts: 8,291
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,291
...
The fishing is better at Lake Stevens.


Cannot see signatures any longer so it doesn’t matter.
Re: Castrol Synthetics? [Re: bora350] #4707075
03/26/18 12:58 AM
03/26/18 12:58 AM
Joined: Oct 2015
Posts: 315
Washington
Dylan1303 Offline
Dylan1303  Offline

Joined: Oct 2015
Posts: 315
Washington
Ive never been a fan of castrol. Arnt they still cleaning up bps oil spill?


12 cruze rs 1.4t 6spd pp 5w30 tuned on 22psi
13 equinox 2.4 awd pp 5w30
Re: Castrol Synthetics? [Re: Stevie] #4707076
03/26/18 01:03 AM
03/26/18 01:03 AM
Joined: Sep 2010
Posts: 8,221
Texas
4WD Offline
4WD  Offline

Joined: Sep 2010
Posts: 8,221
Texas
After just 4K I noticed the clinging molecules worked so good we had a black corn dog for a dipstick
And under the cap? Heck, looked like the Louisiana shorelines in 2010

Re: Castrol Synthetics? [Re: bora350] #4707078
03/26/18 01:08 AM
03/26/18 01:08 AM
Joined: Jul 2010
Posts: 859
TX
Lethal1ty17 Offline
Lethal1ty17  Offline

Joined: Jul 2010
Posts: 859
TX
I've done multiple UOA's with Castrol Edge 5w20 EP and M1 of various flavors and they're so close to each other there is really no difference at all. Also, I do notice Castrol gets darker faster for whatever reason, I just attribute that to its cleaning ability.

Re: Castrol Synthetics? [Re: bora350] #4707098
03/26/18 03:02 AM
03/26/18 03:02 AM
Joined: Aug 2004
Posts: 2,179
5600 feet elevation, Arizona
double vanos Offline
double vanos  Offline

Joined: Aug 2004
Posts: 2,179
5600 feet elevation, Arizona
KJ Smith may beg to differ, hes had lots of terrific UOAs using Magnatec in Ecoboost trucks. And I quit getting excited over VI numbers. In fact, to me at least, the oils with lower VI#s also have lower NOACK #s. All oils nowadays are pretty good, conventional included. The line between conventional, syn blends and full syn are getting pretty slim....


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Castrol Synthetics? [Re: Dylan1303] #4707105
03/26/18 04:22 AM
03/26/18 04:22 AM
Joined: Mar 2013
Posts: 5,314
The Midwest
skyactiv Offline
skyactiv  Offline

Joined: Mar 2013
Posts: 5,314
The Midwest
Originally Posted By: Dylan1303
Ive never been a fan of castrol. Arnt they still cleaning up bps oil spill?


Who cares.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Re: Castrol Synthetics? [Re: skyactiv] #4707115
03/26/18 05:13 AM
03/26/18 05:13 AM
Joined: Feb 2003
Posts: 6,003
Cajun Country, La.
BlueOvalFitter Offline
BlueOvalFitter  Offline

Joined: Feb 2003
Posts: 6,003
Cajun Country, La.
Originally Posted By: skyactiv
Originally Posted By: Dylan1303
Ive never been a fan of castrol. Arnt they still cleaning up bps oil spill?


Who cares.

I would really like to see you come down here to Bayou Lafourche and tell these shrimpers that! I have a cousin that lives down there and shrimping is his livelihood. He is 4th generation, but barely. When the BP oil spill happened it brought the family business to its knees!
Now, I think BP has done A LOT to mend the fence about the situation. No, it will never be the same, but it sure is better today then it was a few years ago.

Re: Castrol Synthetics? [Re: double vanos] #4707116
03/26/18 05:19 AM
03/26/18 05:19 AM
Joined: Apr 2012
Posts: 10,502
Kendall, FL
wemay Offline
wemay  Offline

Joined: Apr 2012
Posts: 10,502
Kendall, FL
Originally Posted By: double vanos
KJ Smith may beg to differ, hes had lots of terrific UOAs using Magnatec in Ecoboost trucks. And I quit getting excited over VI numbers. In fact, to me at least, the oils with lower VI#s also have lower NOACK #s. All oils nowadays are pretty good, conventional included. The line between conventional, syn blends and full syn are getting pretty slim....


This ^
Especially now where d1G2 has brought everyone closer together.


18 KIA Sportage 2.4 AWD
M1HM 10W30, OEM
ST SYN 5W30, ST9688 (next)

13 Hyundai Santa Fe Sport 2.0T
PPeL 5W30, OEM
M1HM 10W30, OEM (next)
Re: Castrol Synthetics? [Re: bora350] #4707119
03/26/18 05:27 AM
03/26/18 05:27 AM
Joined: Jun 2004
Posts: 1,554
Indiana
farrarfan1 Offline
farrarfan1  Offline

Joined: Jun 2004
Posts: 1,554
Indiana
If you don't like Castrol oil then don't use it. No big deal.


If laughter is the best medicine, then why do sick people go to doctors instead of comedians?
Re: Castrol Synthetics? [Re: bora350] #4707121
03/26/18 05:30 AM
03/26/18 05:30 AM
Joined: Dec 2011
Posts: 5,673
North Carolina
rooflessVW Online content
rooflessVW  Online Content

Joined: Dec 2011
Posts: 5,673
North Carolina
Castrol works well for everyone but the base stock snobs.


"Zed's dead baby, Zed's dead."
Re: Castrol Synthetics? [Re: bora350] #4707124
03/26/18 05:34 AM
03/26/18 05:34 AM
Joined: Feb 2011
Posts: 1,308
Golden Meadow, LA
mobilaltima Offline
mobilaltima  Offline

Joined: Feb 2011
Posts: 1,308
Golden Meadow, LA
Thanks BlueOval fitter! As a life long resident of Bayou Lafourche, we are still feeling the effects of the spill and remarks like those made by Skyactiv and such are upsetting. Anyhow, who is your cousin, the shrimper?


2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles
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