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Lowest NOACK ? #4638401
01/18/18 05:16 AM
01/18/18 05:16 AM
Joined: Sep 2010
Posts: 2,022
GA.
ChrisD46 Offline OP
ChrisD46  Offline OP
Joined: Sep 2010
Posts: 2,022
GA.
Generally speaking , how would you rate these synthetic oils from lowest to highest NOACK ?

My guess would be :
5W20
0W20
5W30
0W30

I can run any of these oils but lowest NOACK appears to play nicer (i.e. intake deposits) in a DI engine.


2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
Re: Lowest NOACK ? [Re: ChrisD46] #4638441
01/18/18 07:46 AM
01/18/18 07:46 AM
Joined: Mar 2013
Posts: 4,757
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 4,757
The Midwest
Amsoil signature series, redline, Castriol edge bio. Pennzoil platinum euro 0w30 states lower inlet deposits. The add pack plays a role.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: Lowest NOACK ? [Re: ChrisD46] #4638471
01/18/18 08:42 AM
01/18/18 08:42 AM
Joined: Jun 2015
Posts: 4,225
New England
Virtus_Probi Offline
Virtus_Probi  Offline
Joined: Jun 2015
Posts: 4,225
New England
This is just one brand (and a boutique one at that), but the NOACKs for the Amsoil SS line are conveniently available on a single PDS page...
5W20 5.8%
5W30 6.7%
0W20 8.5%
0W30 8.8%.
IMHO, these results are all quite good.
If we mix in the non-"dexos1 Gen 2" grades, it's a little more confusing (quotes because these oils don't actually have that license)...
10W30 4.1%
5W20 5.8%
5W50 6.1%
5W30 6.7%
0W40 7.7%
0W20 8.5%
0W30 8.8%.
Still nice numbers all around...I have to assume that 5W50 beats 5W30 and 0W40 beats 0W30 and 0W20 due to different base oils, but I'm just guessing there. Interesting to note that the XW30s are not high HTHS oils, all around 3.1 for that test.


2014 Forester XT, 86000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Lowest NOACK ? [Re: ChrisD46] #4638543
01/18/18 09:46 AM
01/18/18 09:46 AM
Joined: May 2009
Posts: 12,189
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,189
N.H, U.S.A.
Never found it to matter unless tackling competition motorsports.

After a 1 hour DP solvent burn-off what's the NOACK of a the oil going forward?


2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: Lowest NOACK ? [Re: ChrisD46] #4638629
01/18/18 11:07 AM
01/18/18 11:07 AM
Joined: Oct 2014
Posts: 11,835
Idaho
CT8 Online content
CT8  Online Content
Joined: Oct 2014
Posts: 11,835
Idaho
You are chasing the wrong thing by chasing the lowest NOACK number for intake valve deposits. The crank case is full of oil spray, oil vapor and blow by gases and conbustion by product particles.


"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf
Re: Lowest NOACK ? [Re: ChrisD46] #4638690
01/18/18 12:17 PM
01/18/18 12:17 PM
Joined: Dec 2016
Posts: 6,226
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,226
Waco, TX
Apparently, PCV line "catch cans" don't seem to help the issue much (or at all?)


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Lowest NOACK ? [Re: CT8] #4638805
01/18/18 02:09 PM
01/18/18 02:09 PM
Joined: Jun 2016
Posts: 74
PENNSYLVANIA
Crobinson16 Offline
Crobinson16  Offline
Joined: Jun 2016
Posts: 74
PENNSYLVANIA
Originally Posted By: CT8
You are chasing the wrong thing by chasing the lowest NOACK number for intake valve deposits. The crank case is full of oil spray, oil vapor and blow by gases and conbustion by product particles.


What oil properties should be considered when looking to combat di valve deposits

Re: Lowest NOACK ? [Re: Crobinson16] #4638866
01/18/18 03:04 PM
01/18/18 03:04 PM
Joined: Oct 2014
Posts: 11,835
Idaho
CT8 Online content
CT8  Online Content
Joined: Oct 2014
Posts: 11,835
Idaho
Originally Posted By: Crobinson16
Originally Posted By: CT8
You are chasing the wrong thing by chasing the lowest NOACK number for intake valve deposits. The crank case is full of oil spray, oil vapor and blow by gases and conbustion by product particles.


What oil properties should be considered when looking to combat di valve deposits
the deposits are more than just the oil noack.


"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf
Re: Lowest NOACK ? [Re: ChrisD46] #4638918
01/18/18 04:13 PM
01/18/18 04:13 PM
Joined: Jul 2015
Posts: 246
TX-Texas
mctmatt Offline
mctmatt  Offline
Joined: Jul 2015
Posts: 246
TX-Texas
Chris, here is a link that you might want to read as I thought it had some good information http://www.aa1car.com/library/intake_valve_deposits_gdi_engines.htm

Re: Lowest NOACK ? [Re: ChrisD46] #4642553
01/22/18 07:41 AM
01/22/18 07:41 AM
Joined: Sep 2010
Posts: 2,022
GA.
ChrisD46 Offline OP
ChrisD46  Offline OP
Joined: Sep 2010
Posts: 2,022
GA.
Thanks for the replies - looks like using top tier gas , synthetic 5W30 and OCI's of approx. 4,000 miles for suburban driving near a big city is a good bet for GDI engines .


2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
Re: Lowest NOACK ? [Re: ChrisD46] #4643209
01/22/18 06:25 PM
01/22/18 06:25 PM
Joined: Mar 2008
Posts: 6,808
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 6,808
USA
The Castrol Edge 0w30 has a NOACK of 8.3, but it's a thick 30, almost a 40

Re: Lowest NOACK ? [Re: ChrisD46] #4643213
01/22/18 06:27 PM
01/22/18 06:27 PM
Joined: Aug 2002
Posts: 14,424
Silicon Valley
PandaBear Offline
PandaBear  Offline
Joined: Aug 2002
Posts: 14,424
Silicon Valley
Based on what Valvoline's PDS said it would be the 5w20 and 10w30.


"You keep asking questions PandaBear and you'll end up a vegetarian like my wife" - Camu Mahubah

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