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ACEA A5/B5 question #4448803
07/03/17 08:02 PM
07/03/17 08:02 PM
Joined: Aug 2015
Posts: 434
Caribbean
Nissan101 Offline OP
Nissan101  Offline OP
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Caribbean
I must first apologize if this is a stupid question or if it had been discussed before.
A oil that pass this standard (ACEA A5/B5).
Is it a good oil?

Would this oil be good for a turbo charged vehicle?


Nissan N16 -10w30
Nissan S13 -20w50

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Re: ACEA A5/B5 question [Re: Nissan101] #4448808
07/03/17 08:04 PM
07/03/17 08:04 PM
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USA
slacktide_bitog Online content
slacktide_bitog  Online Content
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Yes, A5/B5 is good oil, but what kind of turbocharged vehicle is it?

In the Caribbean, where temperatures are higher, perhaps A3/B4 might be better, though. A3/B4 corresponds to the thicker oils (some heavier 30's, and most 40's), while A5/B5 corresponds to thinner oils (most 30's)

Re: ACEA A5/B5 question [Re: slacktide_bitog] #4448819
07/03/17 08:11 PM
07/03/17 08:11 PM
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Caribbean
Nissan101 Offline OP
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Its a 5w40 oil.


Nissan N16 -10w30
Nissan S13 -20w50

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Re: ACEA A5/B5 question [Re: Nissan101] #4448820
07/03/17 08:12 PM
07/03/17 08:12 PM
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Caribbean
Nissan101 Offline OP
Nissan101  Offline OP
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So there is a chance that there will be some consumption issues, because currently im using 20w50.


Nissan N16 -10w30
Nissan S13 -20w50

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Re: ACEA A5/B5 question [Re: Nissan101] #4448826
07/03/17 08:17 PM
07/03/17 08:17 PM
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Nissan101 Offline OP
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Another reason im considering and having questions about this oil, is that i can obtain it cheap. :_)
Its a fully synthetic oil too.


Nissan N16 -10w30
Nissan S13 -20w50

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Re: ACEA A5/B5 question [Re: Nissan101] #4448837
07/03/17 08:29 PM
07/03/17 08:29 PM
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USA
slacktide_bitog Online content
slacktide_bitog  Online Content
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Originally Posted By: Nissan101
Its a 5w40 oil.



impossible for a 5w40 to be A5/B5 (that spec requires HTHS under 3.5)

The applicable standard is A3/B4

Re: ACEA A5/B5 question [Re: slacktide_bitog] #4448845
07/03/17 08:32 PM
07/03/17 08:32 PM
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Nissan101 Offline OP
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Re: ACEA A5/B5 question [Re: Nissan101] #4448846
07/03/17 08:33 PM
07/03/17 08:33 PM
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Nissan101 Offline OP
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Thats what the website says......and im not too educated on the various certifications except the normal API SM/SN etc.


Nissan N16 -10w30
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Re: ACEA A5/B5 question [Re: Nissan101] #4448925
07/03/17 10:32 PM
07/03/17 10:32 PM
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Los Angeles, California
Gokhan Online content
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Technically it's possible to be both ACEA A3/B4 and A5/B5 at the same time if HTHSV = 3.5 cP exactly because of a loophole in the ACEA definition.

Is this GDI? What's the recommended oil?


1985 Toyota Corolla LE, 4A-LC engine, ~ 272,000 M
Toyota (TGMO) 0W-20 SN
Mobil 1 EP M1-103 filter, 90430-12031 drain gasket
Re: ACEA A5/B5 question [Re: Nissan101] #4448962
07/03/17 11:16 PM
07/03/17 11:16 PM
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San Francisco, CA
Flying_A Offline
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The HTHS of 3.5 is on the thin side for a 5w40, it should be > 3.5 mPA.s otherwise it would be considered a "fuel efficiency" type formulation, hence the A5/B5 designation like the OP stated.

An A3/B4 or a C3 oil would be a better recommendation if oil consumption were a concern.


Last edited by Flying_A; 07/03/17 11:22 PM.

2008 Maserati Gran Turismo: Motul 300V Trophy 0W40
2017 Audi A3 etron: Motul X-clean FE 5W30/300V Sprint 0W15
Re: ACEA A5/B5 question [Re: Nissan101] #4448996
07/04/17 01:37 AM
07/04/17 01:37 AM
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Regina, Saskatchewan, Canada
Garak Offline
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Regina, Saskatchewan, Canada
Originally Posted By: Nissan101
Its a 5w40 oil.

In reference to what slacktide_bitog mentioned, it seems unlikely it would be A5/B5. It may technically be possible, but it's a fine line. A5/B5 can have an HTHS of 3.5 or lower. A 10w-40 must have an HTHS of 3.5 or higher. So, there's a fine line to walk there. It cannot be below 3.5 and remain a 10w-40 by SAE J300, and cannot go above 3.5 and be A5/B5.


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
Re: ACEA A5/B5 question [Re: Garak] #4449000
07/04/17 01:45 AM
07/04/17 01:45 AM
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Down Under
SR5 Offline
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Down Under
Originally Posted By: Garak
Originally Posted By: Nissan101
Its a 5w40 oil.

In reference to what slacktide_bitog mentioned, it seems unlikely it would be A5/B5. It may technically be possible, but it's a fine line. A5/B5 can have an HTHS of 3.5 or lower. A 10w-40 must have an HTHS of 3.5 or higher. So, there's a fine line to walk there. It cannot be below 3.5 and remain a 10w-40 by SAE J300, and cannot go above 3.5 and be A5/B5.


Exactly, which makes me nervous. How does it pass the stay-in-grade shear stability test without using up some KV100 and HTHS headroom that it never had to begin with ?

I don't trust a A5/B5 5W40, it can only exist on the borders of reality, who would formulate to a line when most formulate to be clearly in a well defined area for a grade.


---------------------------------------------------------------------------------
Castrol GTX Ultraclean 15W40 A3/B3 + Wesfil-Cooper Z154
Re: ACEA A5/B5 question [Re: slacktide_bitog] #4449009
07/04/17 02:53 AM
07/04/17 02:53 AM
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UK
weasley Offline
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Originally Posted By: slacktide_bitog
Originally Posted By: Nissan101
Its a 5w40 oil.



impossible for a 5w40 to be A5/B5 (that spec requires HTHS under 3.5)


Exactly this. It is practically impossible to have an oil which is precisely 3.5 cP HTHS, which is the only theoretical way of having a 5W-40 A5/B5. Furthermore it is vanishingly unlikely that a 5W-40, even on the 3.5 cP knife-edge, will pass the fuel economy engine test requirements of A5/B5.

Their wording suggests that the oil meets some performance requirements of ACEA A5/B5, but I doubt very much they are signed up to the EELQMS Letter of Conformance which is required if you want to make ACEA claims.


2017 SEAT Leon 1.4 EcoTSI 150 FR Technology DSG
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Re: ACEA A5/B5 question [Re: Nissan101] #4449156
07/04/17 07:49 AM
07/04/17 07:49 AM
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Caribbean
Nissan101 Offline OP
Nissan101  Offline OP
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So according to what you all say, this oil will be quick to shear down to a 5w30?


Nissan N16 -10w30
Nissan S13 -20w50

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Re: ACEA A5/B5 question [Re: Nissan101] #4449169
07/04/17 08:01 AM
07/04/17 08:01 AM
Joined: Aug 2015
Posts: 434
Caribbean
Nissan101 Offline OP
Nissan101  Offline OP
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Caribbean
On the container it states its ILSAC GF-5. Also it also says that it passed ACEA A5/B5. Now im thinking if this oil is cheap for a reason :-(


Nissan N16 -10w30
Nissan S13 -20w50

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