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#4655913 - 02/04/18 01:01 PM Castrol 5w40 vs Castrol 0w40
Patman Offline



Registered: 05/27/02
Posts: 20355
Loc: Oakville, Ontario
I see a lot of people praising Castrol's 0w40 on here but I never see anyone talking about their 5w40 at all, is it really that inferior? My local Costco carries the 5L jug of 5w40 for $32 CDN, although it's still cheaper for me to buy Castrol 0w40 across the border in a US Walmart.

So what is it about the 5w40 that rubs my fellow BITOGers the wrong way?
_________________________
2018 Corvette (M1 5w30 ESP Formula & Fram Ultra)
2006 Civic EX Coupe (PUP 5w20 & Fram Ultra)
2010 BMW 328i X-Drive (GC 0w40 & Mann)


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#4655919 - 02/04/18 01:05 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35897
Loc: Great Lakes
It's nitpicking to some extent, but higher Noack of Edge 5w-40 indicates lower quality oil bases. It's one of the reasons it cannot meet MB 229.5 spec.

Since Edge 0w-40 is the same price or less and meets more stringent MFG specs, most people just don't see a reason to buy the 5w-40 stuff.

_________________________
'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)

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#4655992 - 02/04/18 02:19 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Nyogtha Offline


Registered: 10/13/14
Posts: 2330
Loc: San Antonio, TX
When I lived in NW Ohio, I had 2 friends with Audi vehicles that specified VW 502 oils. Several years ago I scored a bunch of loose quarts for $2 each at Autozone of Castrol 5W-40, 0W-40, & 0W-30 as well as older Pennzoil Ultra and newer Pennzoil Platinum in 5W-40. All met VW 502 specs, and the vehicle that used up the Castrol 5W-40 is still running fine today. It was a 2011 A4 4 cyl DI turbo.


Edited by Nyogtha (02/04/18 02:19 PM)
_________________________
"No matter how paranoid you are you're not paranoid enough. Tell the truth. Reach as many people as you can with it. That's your weapon." - Susanne Modeski, aka "Holly" to The Lone Gunmen

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#4656044 - 02/04/18 03:09 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
SR5 Offline


Registered: 07/07/15
Posts: 4474
Loc: Down Under
When I spoke to Castrol over the phone, they told me their two Euro oils that were PAO based were Edge 0W40 and Edge 10W60. By implication that makes the Edge 5W40 a Group III synthetic. Nothing wrong with that, but that is the difference.

I also hear it's Noack is a touch over 10%, still good, but also the reason it can't claim MB 229.5 for the 5W40. It can claim other great specs like Porsche A40.

Here the Edge 5W40 is always priced below the Edge 0W40, which I assume helps it sell. I've seen the 5W40 at a good sale price a few times, but never pulled the trigger on it. The Edge 5W30 A3/B4 with BMW LL-01 and MB 229.5 is more my style. The 5W30 A3/B4 is also Group III, but viscosity wise it's a tighter oil, so less VII and a lower Noack.
_________________________
Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154

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#4656072 - 02/04/18 03:38 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Garak Offline


Registered: 12/05/09
Posts: 24620
Loc: Regina, Saskatchewan, Canada
Canadian Tire, Partsource, and NAPA Canada will also have it for a good price on occasion. Walmart Canada can, too, but that's a little more hit and miss.
_________________________
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

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#4656080 - 02/04/18 03:46 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Quattro Pete]
CT8 Offline


Registered: 10/09/14
Posts: 11020
Loc: Idaho
Originally Posted By: Quattro Pete
It's nitpicking to some extent, but higher Noack of Edge 5w-40 indicates lower quality oil bases. It's one of the reasons it cannot meet MB 229.5 spec.

Since Edge 0w-40 is the same price or less and meets more stringent MFG specs, most people just don't see a reason to buy the 5w-40 stuff.

The oil is thicker.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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#4656101 - 02/04/18 04:00 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
BikeWhisperer Offline


Registered: 01/20/15
Posts: 1174
Loc: Cascadia
The 0w-40 is easier to find than the 5w-40 (Amazon, Walmart) for me. Given a lower Noack and better base oil (though honestly there doesn't appear to be much difference in performance and protection between Group III and Group IV base oils) it's a pretty easy choice for me.
_________________________
2013 F150 XLT SCrew Eco-Boost
0w-40 Edge, Fram XG10575, Spectre Air Filter

2016 Ford Escape SE Eco-Boost 2.0L
5w-30 Edge EP, Fram XG3614





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#4656114 - 02/04/18 04:09 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
edyvw Offline


Registered: 03/08/12
Posts: 5038
Loc: Colorado Springs
Originally Posted By: Patman
I see a lot of people praising Castrol's 0w40 on here but I never see anyone talking about their 5w40 at all, is it really that inferior? My local Costco carries the 5L jug of 5w40 for $32 CDN, although it's still cheaper for me to buy Castrol 0w40 across the border in a US Walmart.

So what is it about the 5w40 that rubs my fellow BITOGers the wrong way?

Castrol 5W40? Total POS.
Used it in Passat 1.8T B5.5 and it took 4,000 miles for hydro lifters to start knocking.
That problems was never present with Castrol 0W30 (GC) I used later and is one of the reasons I switched to 0W30.
It is actually below average Group III oil since there are other Group III oils that meet MB229.5 or MB 229.51 like Valvoline 5W40.
_________________________
13' BMW X5 35d (Mobil1 5W30 ESP+OEM filter)
11' VW Tiguan 2.0T (Castrol 0W40+MANN filter)

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#4656117 - 02/04/18 04:15 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Patman Offline



Registered: 05/27/02
Posts: 20355
Loc: Oakville, Ontario
I wish we still had GC 0w30 here (and for the $5 per liter I used to find it at back then!) as this would be my top choice for her BMW!
_________________________
2018 Corvette (M1 5w30 ESP Formula & Fram Ultra)
2006 Civic EX Coupe (PUP 5w20 & Fram Ultra)
2010 BMW 328i X-Drive (GC 0w40 & Mann)


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#4656148 - 02/04/18 05:02 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Quattro Pete Offline


Registered: 10/30/02
Posts: 35897
Loc: Great Lakes
Originally Posted By: Patman
I wish we still had GC 0w30 here (and for the $5 per liter I used to find it at back then!) as this would be my top choice for her BMW!

Your local Walmarts dont carry it anymore?

https://www.walmart.ca/en/ip/castrol-syntec-0w30-1-litre/6000016937531
_________________________
'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (FF)

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#4656167 - 02/04/18 05:35 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Garak Offline


Registered: 12/05/09
Posts: 24620
Loc: Regina, Saskatchewan, Canada
Originally Posted By: Patman
I wish we still had GC 0w30 here (and for the $5 per liter I used to find it at back then!) as this would be my top choice for her BMW!

As much as it pains me, check CT and Partsource on that product, too. NAPA Canada is, again, another option. Of course, the 1 L pricing is always the barrier. Getting a good relationship with an independent parts store that sells Castrol is another option, particularly for products that are getting harder to find or that are less frequently on sale.

Quattro Pete: All our Walmarts used to carry the Castrol 0w-30 A3/B4. Now, it's a bit hit and miss. In fact, your link shows it's not available at any of the local Walmarts currently, but if I were needing the product, I'd verify in person, because I don't know how accurate their site is on stock. Canadian Tire's site seems to have correct inventory numbers, with online stock matching their computer, but whether someone stocked the shelves is another matter, too.
_________________________
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

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#4656314 - 02/04/18 08:06 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Patman Offline



Registered: 05/27/02
Posts: 20355
Loc: Oakville, Ontario
I haven't seen GC at my local Walmart or Canadian Tire in quite a while now, and the price would be a problem too, my wife's car takes 7 quarts at oil change time (plus one for top up) and single 1L bottles of any Castrol product are about $13, so it would be almost triple the price of buying in the bigger jugs (and GC never did come in the bigger jugs) I should have built up a bigger stash back in the day! (I think my largest supply was 80L at one point!)

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#4656498 - 02/04/18 11:59 PM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Garak Offline


Registered: 12/05/09
Posts: 24620
Loc: Regina, Saskatchewan, Canada
The local CTs here usually have it, though of course, that can change at any time. All I could recommend is watch for the one litre specials, and see what you can find. Of course, there's nothing wrong with the other options in the sensible container size. I think Bluewave Energy is your Pennzoil-Quaker State distributor, as well, so they might be able to get you a decent price on the PP Euro 5w-40 LL01, too.
_________________________
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

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#4656563 - 02/05/18 05:24 AM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
Patman Offline



Registered: 05/27/02
Posts: 20355
Loc: Oakville, Ontario
Even if I found a steady supply, and even if it went on sale for 50% off, it would still be more costly than just buying the big jugs of 0w40 from the US. Plus I remember how pouring 7L of oil into an engine one bottle at a time is not much fun too

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#4656572 - 02/05/18 05:54 AM Re: Castrol 5w40 vs Castrol 0w40 [Re: Patman]
supercity Offline


Registered: 06/12/12
Posts: 1156
Loc: Australia
Interesting that 0w40 has a lower VI

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