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Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 #5135435 06/16/19 05:24 AM
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Pidziek Offline OP
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Hi,

I have a question for you, dear colleagues.

For most cars, the specification ACEA A5/B5 ILSAC GF-4/5 is recommended.

Example of LEXUS, TOYOTA.

How the use of oil of the same viscosity, but in the A3/B3/B3/B4 specification, affects wear and engine protection?

There is a theory that A5/B5 light running oils cause less high-temperature deposits, lacquers and deposits, especially on the rings.

On the other hand, others say and write that the use of A3/B3 oil in LEXUS GS for example causes a smaller amount of so called shavings.

Has anyone investigated this topic and whether it is better to take into account the specification e. g. ILSAC GF-4/5 etc. or the most important is the oil film strength, which is higher in A3/B3 oils?

I am not talking about ecology but about cleanliness of the engine, amount of deposits and resistance to wear and tear.

Please let me know. Thank you.

Last edited by Pidziek; 06/16/19 05:25 AM.
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: Pidziek] #5135451 06/16/19 06:15 AM
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yowps3 Offline
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This is the same question I have.
My car specifies ACEA A5 in 5W30

What is difference between ACEA A5 & ILSAC GF-5?
Also many A5 oils don't meet API SN spec only older API

Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: yowps3] #5135454 06/16/19 06:21 AM
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Popsy Offline
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Originally Posted by yowps3
Also many A5 oils don't meet API SN spec only older API

Because of ZDDP limits in 30 grade and under for API SN.


96 Barchetta, 300V 5W40 | Forfour 95, SHU 0W40
Mazda 6 2.3, Castrol 0W30 | Colt Ralliart, 300V 0W40
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: yowps3] #5135456 06/16/19 06:25 AM
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bbhero Offline
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Actually Pennzoil Platinum and Mobil 1 both meet ACEA A5 , API SN and Dexos Gen 2 and ILSAC GF-5.

.Those are the only two I know of from the top of my head that do meet all of those specs...


Nissan Altima 3.5 Coupe
Cam2 Dexos1 Gen 2 5w30 Wix 57356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: Popsy] #5135458 06/16/19 06:30 AM
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yowps3 Offline
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Originally Posted by Popsy
Originally Posted by yowps3
Also many A5 oils don't meet API SN spec only older API

Because of ZDDP limits in 30 grade and under for API SN.

In that sense it's better to use ACEA A5 API SJ full ZDDP oil circa 1000ppm zddp than 800ppm API SN standard ?

Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: yowps3] #5135459 06/16/19 06:32 AM
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bbhero Offline
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Just told you....

Pennzoil Platinum and Mobil 1 both meet ACEA A5 and API SN and SN+.... And ILSAC GF-5... And Dexos Gen 2...

These oils do exist... Their PDS states so very clearly.


Nissan Altima 3.5 Coupe
Cam2 Dexos1 Gen 2 5w30 Wix 57356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: bbhero] #5135470 06/16/19 07:02 AM
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yowps3 Offline
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Originally Posted by bbhero
Just told you....

Pennzoil Platinum and Mobil 1 both meet ACEA A5 and API SN and SN+.... And ILSAC GF-5... And Dexos Gen 2...

These oils do exist... Their PDS states so very clearly.

So what benefits does the A5 standard bring over just API SN / GF-5 ?

Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: yowps3] #5135493 06/16/19 07:48 AM
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bbhero Offline
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If I am remembering correctly the A5 is for higher performance motors that spec a 5w30 oil and longer change interval has well...

It is a good spec. Very similar to Dexos Gen 2..


Nissan Altima 3.5 Coupe
Cam2 Dexos1 Gen 2 5w30 Wix 57356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: bbhero] #5135497 06/16/19 07:55 AM
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Virtus_Probi Offline
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Originally Posted by bbhero
If I am remembering correctly the A5 is for higher performance motors that spec a 5w30 oil and longer change interval has well...
It is a good spec. Very similar to Dexos Gen 2..

One area of difference is LSPI, where ACEA will not be introducing tests until A7/B7.
That standard will also include timing chain wear and turbo deposit tests like d1G2.


2014 Forester XT, 105000 miles
Last Change;
PP 5w30 d1G2
Tokyo Roki 15208AA170 filter
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: Pidziek] #5135519 06/16/19 08:19 AM
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Kamele0N Offline
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Put ACEA beside...but I am pretty sure that MB 229.5x and VW 504/507 both have tests for a chain wear...


2008 Toyota Yaris 1ND-TV 1.4 D4-D Tech9 5W30 C3 VW 504/507
1997 Toyota Landcruiser KZJ95 3.0 TD Elf Evolution NF900 5W40
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: bbhero] #5135543 06/16/19 08:44 AM
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yowps3 Offline
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Originally Posted by bbhero
If I am remembering correctly the A5 is for higher performance motors that spec a 5w30 oil and longer change interval has well...

It is a good spec. Very similar to Dexos Gen 2..

Which would be the better spec for a V6 T-Gdi?

D1g2 or ACEA A5 ?

Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: yowps3] #5135566 06/16/19 09:12 AM
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turnbowm Offline
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Originally Posted by yowps3
Which would be the better spec for a V6 T-Gdi?

D1g2 or ACEA A5 ?

D1 G2 offers LSPI protection, A5 doesn't.


2015 Kia Optima EX 2.4L GDI
2015 Chevy Volt
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: turnbowm] #5135602 06/16/19 10:12 AM
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BLND1 Offline
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Originally Posted by turnbowm
Originally Posted by yowps3
Which would be the better spec for a V6 T-Gdi?

D1g2 or ACEA A5 ?

D1 G2 offers LSPI protection, A5 doesn't.


As stated earlier - when in doubt, go for Mobil1 or PP.
Both offer ACEA A5 and D1G2.

Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: Pidziek] #5135614 06/16/19 10:30 AM
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I personally would never use low HTHS oil in any TGDi engine...


2008 Toyota Yaris 1ND-TV 1.4 D4-D Tech9 5W30 C3 VW 504/507
1997 Toyota Landcruiser KZJ95 3.0 TD Elf Evolution NF900 5W40
Re: Comparison engine oil ACEA A5/B5 ILSAC GF4/5 and ACEA A3/B3/B4 [Re: yowps3] #5135782 06/16/19 02:45 PM
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BMWTurboDzl Offline
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Originally Posted by yowps3
Originally Posted by bbhero
If I am remembering correctly the A5 is for higher performance motors that spec a 5w30 oil and longer change interval has well...

It is a good spec. Very similar to Dexos Gen 2..

Which would be the better spec for a V6 T-Gdi?

D1g2 or ACEA A5 ?


Whatever your manual calls for. BITOG tends to blow things out of proportion. Not ALL turbo DI engines have to contend with LSPI.


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

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