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Castrol Edge 10W-30 in Australia #4067004 04/12/16 10:04 PM
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SR5 Offline OP
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The Castrol Australia web page now features Edge 10W-30, which wasn't there last time I looked. I'm very excited, I've been looking for a full synthetic 10W-30 oil for awhile. Before this turned up, the only synthetic Castrol 30 weight oil we had was the Edge 5W-30 A3/B4. This new Edge 10W-30 is an ILSAC oil, but their PDS sheet was very slim on details, so I rang Castrol up and asked them for HTHS & TBN, and they told me real numbers !!

The details are below, both for 10W-30 and 5W-30 Edge, for comparison.

Edge 10W-30 (API SN, ACEA A5/B5, ILSAC GF-5)
Vis 40C = 66.2
Vis 100C = 10.47
Pour Point = -36C
TBN = 11.2
HTHS = 3.2

Edge 5W-30 A3/B4 (API SL, ACEA A3/B4, BMW LL-01, MB 229.5) (Note Castrols says: "Passes all engine test performance requirements for API SN and SM but exceeds Phosphorus limits for those classifications.")
Vis 40C = 71.8
Vis 100C = 12.0
Pour Point = -36C
TBN = 10.2
HTHS = 3.6

I also rang around a few shops to see if I could find the 10W-30 Edge.
SuperCheapAuto (SCA) - not in stock and no idea
Repco - not in stock now, but they expect it soon
AutoBarn - not in stock now, but they can order it in and get it in about a week. The price is $60 for 5L for the 10W-30 (note the 5W-30 costs about $70 for 5L, normal retail in Oz).

And just for completeness, I can now get imported Kendall full synthetic GT-1 10W-30, it's details are
Kendall GT-1 10W-30 full synthetic ( SN, GF-5)
Vis 40C = 63.2
Vis 100C = 10.4
Pour Point = -39C
TBN = 8.0
HTHS = 3.1

All three of the above oils should contain Titanium additive, as well as the normal Zinc.


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067037 04/12/16 10:46 PM
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Edge 5W-30 is much thicker than 10W30, it's a little unusual.


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Re: Castrol Edge 10W-30 in Australia [Re: HTSS_TR] #4067089 04/13/16 12:17 AM
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Originally Posted By: HTSS_TR
Edge 5W-30 is much thicker than 10W30, it's a little unusual.


Those specs are the opposite of what I would expect. A5/B5 for the 10w-30, A3/B4 for the 5w-30.

Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067129 04/13/16 02:50 AM
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Joe90_guy Offline
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You can't tell from the numbers but I'm going to guess that the 10W30 is based on OCP VII which is the sensible choice for such an oil. Now all they need to do is offer a 10W20 variant and all will be well with the world...

Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067147 04/13/16 04:14 AM
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Shannow Offline
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To quote Lobo..."fraggin' bastiches"...I wouldn't run it in my Nissan diesel, but would in the Caprice...but I've got a couple years worth of oil in the shed.

Funny that the 10W30 magnatec semi is A3/B4

Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067149 04/13/16 04:19 AM
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Hi Joe90,

I've been trying to learn from yourself, Solarent and bobbydavro, about VII's and even though I don't know how they made the oil (or much about the field at all), I can see the logic of your argument.

It's a low VI, full synthetic oil (Group 3, I assume), right in the middle of the KV100 range (so lots of wiggle room), but being ILSAC no min HTHS floor of 3.5 to worry about.

So do most of the work by blending the correct base oils, then a touch of high efficiency OCP to fine tune the product. With little to worry about in terms of Noack or deposits because it's a narrow band 10W with hardly any VII in it.

If it shears a bit in the A5/B5 KO30 shear test, you are better off using your KV100 head room than using a more expensive low SSI VII.

Anyway, however it's made, I think I like the look of the oil. Compared to some other ILSAC 10W-30's I've seen, it has a slightly higher HTHS of 3.2, and a massive TBN of 11. Their PDS didn't give these values (HTHS or TBN) so I just rang up Castrol Australia, asked a straight question and got a straight answer. Very refreshing, an honest business - customer relationship. I'm sure I will buy some at some stage, but I still have 10L of Edge 5W-30 A3/B4 to use up first.


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Castrol Edge 10W-30 in Australia [Re: Shannow] #4067154 04/13/16 04:37 AM
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Originally Posted By: Shannow


Funny that the 10W30 magnatec semi is A3/B4


Yeah the 10W-30 semi-syn A3/B4 magnatec, has been replaced by a 5W-30 full synthetic A3/B4 magnatec. As I'm sure you know, since you spotted it first. That sort of makes sense to me, as 5W-30 has become to go-to grade for many people. So being a mid scale product, that's SN and A3/B4, in 5W-30, it ticks a lot of boxes. Without this oil, Castrol did not have a full synthetic SN 5W-30 oil in Australia (Edge being SL). They needed one of those.

The mineral GTX 10W-30 is an ILSAC oil, and most of the other semi-syn 10W-30's in Oz are also ILSAC oils. Both Shell Helix HX7 10W-30 and Valvoline DuraBlend / EngineArmour 10W-30 are ILSAC oils. Also I don't think Castrol had a full synthetic (or any) A5/B5 oil in Australia, but others like Valvoline do.

So the two new Castrol products work well together: Full Synthetic 5W-30 SN (Magnatec, also A3/B4) and Full Synthetic 10W-30 ILSAC & A5/B5 (Edge, also SN). That's three boxes ticked with two oils.


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067166 04/13/16 05:01 AM
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Now I am confused again. What is the difference between A3/B3 and A4/B4? I just noticed M1 0w40 for example has both.

I am not sure if my wording is correct, but I think of an A5/B5 as the next best thing to an A3/B3. Good for turbo's and DI engines..


Last edited by dlundblad; 04/13/16 05:02 AM.

03 Jeep WJ 4.0 208k
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Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067178 04/13/16 05:39 AM
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Both A3/B3 and A3/B4 are high HTHS oils, above 3.5

The main difference between the two is TBN, it needs to be 8 or more to be A3/B3 but 10 or more to be A3/B4. If you can claim A3/B4, being the higher standard, then you can automatically claim A3/B3.

Both A1/B1 and A5/B5 are low HTHS (less 3.5) resource conserving oils, with a TBN of 8 or more. The both have a HTHS minimum of 2.9 for xW-30 oils, but A1/B1 allows a HTHS min of 2.6 for xW-20 oils which A5/B5 does not allow. A5/B5 also allows for greater SAPS etc. If you can claim A5/B5, being the higher standard, then you can automatically claim A1/B1 too.

If you want the stoutest oil go A3/B4 for high HTHS and high TBN.

If you want a RC oil, I think A5/B5 is better, but for xW-20 you can only claim A1/B1. I think the Americaian Dexos standard is very similar to the European A1/B1 & A5/B5 standard. But I don't think you guys have any equivalent to the A3 standard.

BTW the Australian Edge 10W-30 PDS was first spotted by supercity

Last edited by SR5; 04/13/16 05:47 AM. Reason: Credit to supercity

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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067331 04/13/16 09:34 AM
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Originally Posted By: SR5
Hi Joe90,

I've been trying to learn from yourself, Solarent and bobbydavro, about VII's and even though I don't know how they made the oil (or much about the field at all), I can see the logic of your argument.

It's a low VI, full synthetic oil (Group 3, I assume), right in the middle of the KV100 range (so lots of wiggle room), but being ILSAC no min HTHS floor of 3.5 to worry about.

So do most of the work by blending the correct base oils, then a touch of high efficiency OCP to fine tune the product. With little to worry about in terms of Noack or deposits because it's a narrow band 10W with hardly any VII in it.

If it shears a bit in the A5/B5 KO30 shear test, you are better off using your KV100 head room than using a more expensive low SSI VII.

Anyway, however it's made, I think I like the look of the oil. Compared to some other ILSAC 10W-30's I've seen, it has a slightly higher HTHS of 3.2, and a massive TBN of 11. Their PDS didn't give these values (HTHS or TBN) so I just rang up Castrol Australia, asked a straight question and got a straight answer. Very refreshing, an honest business - customer relationship. I'm sure I will buy some at some stage, but I still have 10L of Edge 5W-30 A3/B4 to use up first.



Well done! You're beginning to think like a formulator. Now all you need to do is perfect the art of looking perpetually grumpy, seriously p1ssing people off (especially idiot senior managers and directors) and swearing all the time...

Re: Castrol Edge 10W-30 in Australia [Re: Joe90_guy] #4067703 04/13/16 06:45 PM
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Joe90_guy sounds exactly the same as a turbine engineer that I used to be know.

Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4067736 04/13/16 07:27 PM
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The Castrol certainly sounds interesting.

At full retail pricing the Amsoil ATM which is currently in use in my vehicle, is in between the 2 Castrol oils.

I don't know about the veracity of the claims made by Castrol regarding TBN and HTHSv, as these things can be a bit rubbery depending upon the lab where they're tested.

For the life of me, I can't understand why they would want to bring out an oil that's virtually been superseded in the market by a 5w-30 grade as the new default go to oil.

In theory and based on the claims by Castrol it's marginally better than the Amsoil ATM in terms of HTHSv, but it's a bit behind on TBN.
However, it remains to be seen how it actually compares with the results of respective VOA's out of the same lab.
Further to this, the question also needs to be asked "how does the Castrol actually hold up in service"?

For all we know the Castrol may shear a little prematurely?
In that case it wouldn't be any different to the Amsoil in service.
For that matter I don't think any engine could tell the difference between them anyway.

I wonder if Castrol are attempting to fill the void left by the absence of the Mobil 1 which was widely available here in 10w-30 grade until the dexos spec can into effect where it was replaced overnight by the 5w-30 grade.

Last edited by Ducman; 04/13/16 07:29 PM.
Re: Castrol Edge 10W-30 in Australia [Re: Joe90_guy] #4067743 04/13/16 07:40 PM
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Originally Posted By: Joe90_guy

Now all you need to do is perfect the art of looking perpetually grumpy, seriously p1ssing people off (especially idiot senior managers and directors) and swearing all the time...


I've already mastered all that part


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Castrol Edge 10W-30 in Australia [Re: HTSS_TR] #4067999 04/14/16 04:18 AM
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Originally Posted By: HTSS_TR
Edge 5W-30 is much thicker than 10W30, it's a little unusual.

Point this thread to Merk each time he goes on one of his 10w-30 benders. wink That 5w-30 looks to be same Edge 5w-30 A3/B4 I've found on our shelves.

SR5: Maybe the new synthetic 10w-30 in Australia is all the synthetic 10w-30 that got yanked from the Canadian Tire shelves here! Actually, Castrol 10w-30 SN/GF-5 was one of the last synthetic 10w-30 holdouts, and it was on the clearance shelves at one location.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Castrol Edge 10W-30 in Australia [Re: SR5] #4068108 04/14/16 08:09 AM
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A formulation I know well, no OCP involved I'm afraid

Its going to be above 10TBN for the ACEA A3/B4 claims and will need a lowish HTHS for the GF5 claim.
Sure the Kv100 is lower than the 5W-30 but this is because it is carrying a lot less VM (hence the lower HTHS). This helps keeps things clean and minimize the effect of any VM shear.

However these fresh oil values compared to other oils rarely mean much in real world.

5W-30 A3/B4 is really targeting those European OEM specs, no API SN or GF-5.

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