castrol magnetic 5w30

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I haven't but I'd like to try the 0w20 Full Synthetic in our short tripper grocery getter.

The 5w30 is SynBlend. You can get the 5qt jugs on Amazon for $15 if you use Subscribe and Save (you can cancel your subscription after delivery with no repercussions).

Castrol also has instant rebates ($7 for Magnatec) right now on their 6-1qt cases on Amazon.
 
I am using it in my Volvo and I like it very much. Quite a good oil IMO.
 
Originally Posted By: SR5
Magnatec contains a group 5 ester that clings to the metal and protects on start-up.


Does it?!
 
Originally Posted By: weasley
Originally Posted By: SR5
Magnatec contains a group 5 ester that clings to the metal and protects on start-up.


Does it?!


Well it did. Castrol used the word "Ester" in some of their original spec sheets. This oil has a long history in Australia.

The E-word has been removed from their more recent PDS, and replaced with marketing fluff about 'intelligent molecules'.

Take your pick...
 
Originally Posted By: SR5
Castrol themselves say it here:

http://www.tds.bp.com.au/pdf/4053_magnatec_5w40sp_b1802_05.pdf

"Castrol Magnatec ... contains a synthetic ester unique to Castrol. The molecules of the ester are strongly attracted to metal surfaces, forming a film on these surfaces that provides enhanced wear protection in the engine ... remains adhered to internal metal surfaces when the engine is idle or switched off for weeks or months."


Yep it's a old spec sheet, but from the straight talking era. I've never found anything more recent that denies this or asserts that ester are no longer used. Just marketing words now days.
 
Originally Posted By: SR5
weasley said:
Well it did. Castrol used the word "Ester" in some of their original spec sheets. This oil has a long history in Australia.


Not as long as the history here in the UK, where it was launched first in 1996! Things change over 19 years.
 
I tried it in my wife's fusion and I'm not happy with it. I just changed it back to Pennzoil platinum. About 1000 miles into castrol the engine became noisy. This car spends 95 percent of its life on the highway. I don't change oil till 5000 miles on all my vehicles. I ran it the full 5000 miles and changed it back to platinum. I noticed right away the engine quieted down. 500 or so odd miles in engine sounds like it used to. Not typical results I'm sure. Just my experiences.
 
It has been in Australia from the mid 90's too. I believe Castrol did some of their testing or development work here. Back then they stated they used esters in the formulation. Yes, I know things can move on, but that doesn't mean they have to move on after a certain time period has elapsed. How long have people been using ZDDP? Should they stop using it now because they used it in the 70's ?

Anyway esters make more sense to me than intelligent molecules, so I believe it still contains esters. If somebody has a more up to date spec sheet from Castrol that gives a different chemistry, or says they no longer use esters, then I will happily change my view. Otherwise I will stick with the last know chemistry statement from Castrol about their product.

Originally Posted By: Doug Hillary
Hi,
it started here in the mid 1990s as GTX Magnetic - a synthetically enhanced 15W-50 lubricant. Typically as Castrol was in the throes of selling to BP it was relaunched around 2001 as GTX Magnatec 10W-40 - still "synthetically enhanced"!
....

It was stated to have "UMA" technology - Unique Modular Attraction as cornerstone.

Actually the product is a good one - semi-synthetic - and is also available in a "diesel engine" version here in Australia

One of my Sons uses it sucessfully in a highly utilised Japanese turbo-charged 2.5 litre diesel engine


Originally Posted By: vxcalais
Doug, ... Apparently it uses Ester, which some naturally attract to the engine parts and this is what they mean by magnetic ??


Originally Posted By: Doug Hillary
Hi,
vxcalais - ... Like you it is my understanding that it has a Group 5 content

It is a good lubricant with a good reputation
 
I have a question for anyone using it. Someone on another site said something I gound interesting. They said that when they checked the oil level on the dipstick the oil just hung on much more so than with other oils and that it really does cling to stuff. Can anyone running this verify or test that?
 
Originally Posted By: SR5
It has been in Australia from the mid 90's too. I believe Castrol did some of their testing or development work here. Back then they stated they used esters in the formulation. Yes, I know things can move on, but that doesn't mean they have to move on after a certain time period has elapsed. How long have people been using ZDDP? Should they stop using it now because they used it in the 70's ?

Anyway esters make more sense to me than intelligent molecules, so I believe it still contains esters. If somebody has a more up to date spec sheet from Castrol that gives a different chemistry, or says they no longer use esters, then I will happily change my view. Otherwise I will stick with the last know chemistry statement from Castrol about their product.

Originally Posted By: Doug Hillary
Hi,
it started here in the mid 1990s as GTX Magnetic - a synthetically enhanced 15W-50 lubricant. Typically as Castrol was in the throes of selling to BP it was relaunched around 2001 as GTX Magnatec 10W-40 - still "synthetically enhanced"!
....

It was stated to have "UMA" technology - Unique Modular Attraction as cornerstone.

Actually the product is a good one - semi-synthetic - and is also available in a "diesel engine" version here in Australia

One of my Sons uses it sucessfully in a highly utilised Japanese turbo-charged 2.5 litre diesel engine


Originally Posted By: vxcalais
Doug, ... Apparently it uses Ester, which some naturally attract to the engine parts and this is what they mean by magnetic ??


Originally Posted By: Doug Hillary
Hi,
vxcalais - ... Like you it is my understanding that it has a Group 5 content

It is a good lubricant with a good reputation




I know what is in it. Not guesswork, not historical PDSs, but actual knowledge. I can't say though, but I am trying my best to correct some assumptions and mis-truths within the bounds of what I can say.
 
Originally Posted By: weasley

I know what is in it. Not guesswork, not historical PDSs, but actual knowledge. I can't say though, but I am trying my best to correct some assumptions and mis-truths within the bounds of what I can say.


OK, thanks mate, I now get you.
Shame you can't tell us more, but I understand that you can't. A honorable stand.

Thanks for prodding me in the right direction.
 
Castrol oil seems to be on the thick side. I wonder if the new Magnatec is following suit?
confused2.gif
 
Castrol does tend to run a bit thicker than many others, not enough to be much more than static but still an interesting point none the less.

I am on a second run of it in the KIA with a third already on deck. I like it. The price is crazy good for a name brand full syn (20 grades) too.
 
The HTHS of Castrol w titanium gold bottle 5w30 is 3.0. Magnatec 5w30 is around 3 as well. Which actually is on the lower side if the HTHS scale for a operating viscosity of a 30 grade. Castrol is thicker at colder temps than a number of other oils. The CCS of Castrol w titanium is above 5500 at -30°C. That's the area/conditions where Castrol is on the thicker side. BTW, I like Castrol a lot and have run a lot of it in cars. My Nissan Sentra saw it for all the time I had it for 5 yrs.
 
Quote:
Has anyone used this oil? Is it good?

Yes and Yes
Quote:
Here is a UOA (used oil analysis) from that oil. It did 7000 miles in a twin turbo EcoBoost, and produced a very good report.
https://bobistheoilguy.com/forums/ubbthreads.php/topics/3839330/

Proof
Quote:
They said that when they checked the oil level on the dipstick the oil just hung on much more so than with other oils and that it really does cling to stuff. Can anyone running this verify or test that?

It doesn't drip from my trucks dipstick. Maybe not the best scientific evidence, but the FF did when I checked the level.
 
Originally Posted By: bbhero
The HTHS of Castrol w titanium gold bottle 5w30 is 3.0. Magnatec 5w30 is around 3 as well. Which actually is on the lower side if the HTHS scale for a operating viscosity of a 30 grade. Castrol is thicker at colder temps than a number of other oils. The CCS of Castrol w titanium is above 5500 at -30°C. That's the area/conditions where Castrol is on the thicker side. BTW, I like Castrol a lot and have run a lot of it in cars. My Nissan Sentra saw it for all the time I had it for 5 yrs.


When you say its thicker when colder I'm not sure I get it. At 100c Magnatec in 5w20 flavor is 9.1cst. Thats the thickest out there at operating temperature. I see it as thicker at temp as well. Now I am not speaking of EDGE I'm talking about GTX, Magnatec and Highmileage.
 
Thicker at initial start up grasshopper
smile.gif

Say its -4°F outside. The Castrol w titanium gold bottle will be a bit thicker at start up than some others. And the colder the temps drop the greater that difference becomes between Castrol w titanium and say Quaker State Ultimate Durability or Pennzoil Platinum.
 
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