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Old 03-08-2009, 01:31 PM   #1
Mike Jung
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Question Castrol Edge 5W-30 > Valvoline Synpower 5W-30 > Mobil 1 5W-30







Mobil 1 5W-30 IMO has gone downhill since Post-Katrina Hurricane.

http://www.castroledgeusa.com


Discuss.

Me: I am sticking with (Made in Germany) Castrol Syntec 0W-30; European performance rated ACEA A3 .
IF I wanted an ACEA A5 (thinner viscosity) rated oil: It would be Castrol Edge 5W-30 or Pennzoil Platinum 5W-30.

Last edited by Mike Jung; 03-08-2009 at 01:44 PM.
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Old 03-08-2009, 01:44 PM   #2
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I've been pretty partial to castrol oils over the years myself. I guess it all started as a kid working at my first garage, the owner/mechanic always used castrol in is personal vehicles and it stuck with me. I also don't doubt that Mobil One has competitors that are better than it. Considering they are the benchmark in the industry, people are always going to try and beat you.
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Old 03-08-2009, 04:26 PM   #3
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some old scottish bastard hit me in the head with a dipstick on thursday when i had my car filled with Mobil 1
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Old 03-08-2009, 04:49 PM   #4
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Quote:
Originally Posted by SpectreG8GT View Post
some old scottish bastard hit me in the head with a dipstick on thursday when i had my car filled with Mobil 1
LOL... "now thats usin your dipstick jimmy!"
So who really believes this? I really didnt think Mobil 1 was "going down hill" I've always used Mobil 1 in past cars. I havnt changed the oil in my g8 yet, but i was planning on Mobil 1 again. How many people are using Castrol?
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Old 03-08-2009, 04:56 PM   #5
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isn't it the Corvette oil filler cap that has Mobile 1 on it?

good enough for a Corvette, good enough for me.

btw, does anybody know if that filler cap will fit our cars?
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Old 03-08-2009, 05:37 PM   #6
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Quote:
Originally Posted by MichaelG8 View Post
...So who really believes this? I really didnt think Mobil 1 was "going down hill" I've always used Mobil 1 in past cars. I havnt changed the oil in my g8 yet, but i was planning on Mobil 1 again. How many people are using Castrol?
Well, no one recalls Mobil 1 5W-30 temporarily losing their voluntary Euro performance rating ACEA A5 after Hurricane Katrine ?
& only being ACEA A1, which any current motor oil meets.

Mobil 1 cutting back the PAO used in Mobil 1 (except Euro spec'd 0W-40.)

That is a few that come to mind.


& GM Canada now endorses Castrol SLX Professional 4718 5W-30 for synthetic motor oil changes up here.
That is made by Castrol US for GM Canada.
Not Mobil 1 5W-30.

Bottom line: Mobil 1 has been cutting corners lately & relying on their name to sell it.


PS: I am using German Castrol Syntec 0W-30 in my Grand AM & mom's Sunfire GT (from before Mobil 1 5W-30).

PSS: If I were to use Mobil 1:
It would be Mobil 1 0W-40 or Mobil 1 5W-30 EP.

Last edited by Mike Jung; 03-08-2009 at 05:42 PM.
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Old 03-08-2009, 05:44 PM   #7
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Im gonna try royal purple the next oil change i do. I have heard really good stuff about it and Red line. I cant find Amsoil anywhere in my area..
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Old 03-08-2009, 05:59 PM   #8
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Originally Posted by JBoogie View Post
Im gonna try royal purple the next oil change i do. I have heard really good stuff about it and Red line. I cant find Amsoil anywhere in my area..
IMO, I would pass on the Royal Purple.

It doesn't seem to hold it's viscosity (I have heard via Used Oil Analysis).
It shears down in viscosity.
& is not Long-Life rated; or Euro oil performance rated.

Since you are considering Red Line Ester based syntetic motor oils...
Also check this: RLI Bio-Synthetic HD SHP SAE 5W-40 Motor Oil: http://www.renewablelube.com/pdf/Bio...otor%20Oil.pdf

From: http://www.renewablelube.com

An Audi RS4 (TT) owner found that his DI TT engine was killing all oils prematurely.
(like BMW 335i DI turbo'd owners where finding)

He had Terry Dyson from: http://www.dysonanalysis.com source out an oil that would last in his ride.

The Audi RS4 owner paid for the R&D on this custom made oil, & has made the motor oil available to anyone who wants it.

Also see the links here: http://www.renewablelube.com/motoroilsinformation.htm

Last edited by Mike Jung; 03-08-2009 at 06:19 PM.
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Old 03-08-2009, 06:43 PM   #9
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i'm gonna continue with goodwench dino oil...my car seems to be just fine with it!
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Old 03-08-2009, 11:08 PM   #10
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From Mobil's website regarding their Race oil

Quote:
You say the new Mobil 1 Racing oils are not for street use. Why is that? Does that mean I can't use these oils if my race car is also my daily driver?

Automotive street use oils that meet the latest industry standards are required to have a lower level of Zinc and Phosphorus anti-wear chemistries than oils formulated years ago. The latest automotive street use engine oils are designed to be compatible with emission control equipment. Mobil 1 Racing oils are formulated with anti-wear (Zinc/Phosphorus) chemistries at twice the level of automotive street oils to provide enhanced protection of highly loaded valve train systems found in some race engines. Based on the high level of anti-wear chemistries, Mobil 1 Racing oils are not recommended for street use.
So I am guessing they (Castrol and Valvoline) are using more Zinc/Phosphorus (as pointed out in the Valvoline ad) which helps prevent wear under extreme conditions, I wonder if you could see problems in the long run with the extra Zinc/Phosphorus on an engine that has been exposed to it for a lot of miles.
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Old 03-08-2009, 11:46 PM   #11
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If I live in AZ, why would I go as low as a 0w? Or, is it that good?
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Old 03-09-2009, 12:18 AM   #12
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Quote:
Originally Posted by Red888 View Post
If I live in AZ, why would I go as low as a 0w? Or, is it that good?
Yes, Castrol Syntec 0W-30 is that good lol

It actually is better in the hot summer months, than for winter use.
(It is not the same as US Mobil 1 0W-30; think more like Mobil 1 0W-40.)

The 0W is actually only a cold crank spec at -35C/-31F.
They could of label it: 5W-30 or even 10W-30.
It is actually thicker in viscosity than Mobil 1 10W-30 to about -18C/0F

It is an viscosity of 12.2 cST at 100C.
A 30-viscosity motor oil at 100C is 9.30-12.49 cST.
So it is pretty close to being a 40-viscosity motor oil.
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Old 03-09-2009, 12:22 AM   #13
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Quote:
Originally Posted by jmorgan View Post
...So I am guessing they (Castrol and Valvoline) are using more Zinc/Phosphorus (as pointed out in the Valvoline ad) which helps prevent wear under extreme conditions, I wonder if you could see problems in the long run with the extra Zinc/Phosphorus on an engine that has been exposed to it for a lot of miles.
Well for the Castrol Edge...NO!

from: http://www.bobistheoilguy.com/forums...Number=1385818


from: http://www.bobistheoilguy.com/forums...Number=1369430
Quote:
VOA on this new (Castrol Edge 10W-30) oil. Lab: Wearcheck

Silicon 3.1
Potassium 0
Boron 66
Barium 0
Magnesium 12
Moly 129
Calcium 3509
Phosphorus 823
Zinc 941
Vis@40C 61.8
Vis@100C 10.4
TAN 1.18

No TBN

Last edited by Mike Jung; 03-09-2009 at 12:33 AM.
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Old 03-09-2009, 12:56 AM   #14
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Now here is a Mobil 1 5W-30 I can live with...the EP version.

from: http://www.bobistheoilguy.com/forums...Number=1335663
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Old 03-09-2009, 01:01 AM   #15
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Quote:
Originally Posted by Mike Jung View Post
Yes, Castrol Syntec 0W-30 is that good lol

It actually is better in the hot summer months, than for winter use.
(It is not the same as US Mobil 1 0W-30; think more like Mobil 1 0W-40.)

The 0W is actually only a cold crank spec at -35C/-31F.
They could of label it: 5W-30 or even 10W-30.
It is actually thicker in viscosity than Mobil 1 10W-30 to about -18C/0F

It is an viscosity of 12.2 cST at 100C.
A 30-viscosity motor oil at 100C is 9.30-12.49 cST.
So it is pretty close to being a 40-viscosity motor oil.
Looking at what was posted its viscosity at 100c is 9.44 which is on the thin side of 30. Mobile 1 EP is 10.29 which is in the middle. So the Castrol is a thinner oil. Castrol is on the thin side at 210c also at 57 as opposed to M1 at 60 (normal range being from 57-64)

Here is Mobil 1 EP
http://www.bobistheoilguy.com/forums...335663&fpart=1
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Last edited by jmorgan; 03-09-2009 at 01:04 AM.
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Old 03-09-2009, 01:11 AM   #16
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Quote:
Originally Posted by Mike Jung View Post
Yes, Castrol Syntec 0W-30 is that good lol

It actually is better in the hot summer months, than for winter use.
(It is not the same as US Mobil 1 0W-30; think more like Mobil 1 0W-40.)

The 0W is actually only a cold crank spec at -35C/-31F.
They could of label it: 5W-30 or even 10W-30.
It is actually thicker in viscosity than Mobil 1 10W-30 to about -18C/0F

It is an viscosity of 12.2 cST at 100C.
A 30-viscosity motor oil at 100C is 9.30-12.49 cST.
So it is pretty close to being a 40-viscosity motor oil.
Quote:
Originally Posted by jmorgan View Post
Looking at what was posted its viscosity at 100c is 9.44 which is on the thin side of 30. Mobile 1 EP is 10.29 which is in the middle. So the Castrol is a thinner oil. Castrol is on the thin side at 210c also at 57 as opposed to M1 at 60 (normal range being from 57-64)

Here is Mobil 1 EP
http://www.bobistheoilguy.com/forums...335663&fpart=1
What are you talking about ?
Castrol Syntec 0W-30 ?


Edit: You are comparing Castrol Edge 5W-30 to Mobil 1 5W-30 EP.

Last edited by Mike Jung; 03-09-2009 at 01:17 AM.
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Old 03-09-2009, 07:52 AM   #17
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I put in the castrol edge about 2 weeks ago...so when it comes time for a change..I'll see what it looks like. I had the syntec in before..at 5500 miles it still looked clear when I drained it.
I used the Mobile in my srt-4 for awhile,till I went into the motor and found some 'unhappy' results. I took off the valve cover to re-torque the headstuds and everything had a thin film of sludge. So I switched to syntec and checked after 2 oil changes and most of the film was gone.
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Old 03-09-2009, 12:31 PM   #18
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I haven't used the Castrol Edge, but I've used Castrol in my last 3 cars for almost 20 years with no problems at all. Most of the better oils are about the same.
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Old 03-09-2009, 01:51 PM   #19
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Quote:
Originally Posted by Mike Jung View Post
IMO, I would pass on the Royal Purple.

It doesn't seem to hold it's viscosity (I have heard via Used Oil Analysis).
It shears down in viscosity.
& is not Long-Life rated; or Euro oil performance rated.

Since you are considering Red Line Ester based syntetic motor oils...
Also check this: RLI Bio-Synthetic HD SHP SAE 5W-40 Motor Oil: http://www.renewablelube.com/pdf/Bio...otor%20Oil.pdf

From: http://www.renewablelube.com

An Audi RS4 (TT) owner found that his DI TT engine was killing all oils prematurely.
(like BMW 335i DI turbo'd owners where finding)

He had Terry Dyson from: http://www.dysonanalysis.com source out an oil that would last in his ride.

The Audi RS4 owner paid for the R&D on this custom made oil, & has made the motor oil available to anyone who wants it.

Also see the links here: http://www.renewablelube.com/motoroilsinformation.htm

Actually I saw a test that measured scars on the cylinder walls and RP had one of the lowest scores (a good thing) on the test.
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Old 03-09-2009, 02:02 PM   #20
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Quote:
Originally Posted by Steelo08G8 View Post
Actually I saw a test that measured scars on the cylinder walls and RP had one of the lowest scores (a good thing) on the test.

Those tests have little to do with real world usage.
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