Recent Topics
Very Basic Engine Question
by Ducked
04/21/18 11:16 PM
K&N Air Filter for FJ
by CCI
04/21/18 10:41 PM
Shoutout of the day... Thanks car51!
by SubieRubyRoo
04/21/18 10:15 PM
PTFE rear main seal installed NOT dry
by eyeofthetiger
04/21/18 09:22 PM
Why call standard spark plugs “copper plugs”?
by y_p_w
04/21/18 08:58 PM
Sesame seed oil for chicken marinade?
by aquariuscsm
04/21/18 08:39 PM
Microgreen M G 201-7 6k, CUT OPEN
by car51
04/21/18 08:34 PM
NAPA PLATINUM 41516, 17.2k CUT OPEN
by car51
04/21/18 08:24 PM
They don't make 'em like they used to...
by Alex_V
04/21/18 06:55 PM
5W-20 P.U.P. at Walmart (yes, in stock!) $24.97
by Linctex
04/21/18 06:37 PM
Havoline ProDS 10w30 on Rollback at Walmart
by JohnnyJohnson
04/21/18 05:43 PM
Richmond Raceway
by Warstud
04/21/18 05:40 PM
2009 Mustang GT
by GMFan
04/21/18 05:22 PM
Is your A/C ready for the summer?
by Nick1994
04/21/18 04:51 PM
Pennzoil Synthetic Rollback Walmart
by FordBroncoVWJeta
04/21/18 04:48 PM
Alternators, A just in case Scenario.
by rollinpete
04/21/18 04:38 PM
Palm Ratchets
by 2015_PSD
04/21/18 04:32 PM
2013 Equinox ATF change
by Dave Sherman
04/21/18 04:13 PM
Champion vs NGK Spark Plugs ?? Iridium
by fins
04/21/18 03:46 PM
Are you driving the same car since 2010
by CourierDriver
04/21/18 03:45 PM
Newest Members
Marc32275Jax, puma4440, zeroyon223, wade12345, rdatman
64806 Registered Users
Who's Online
47 registered (BAJA_05, bdcardinal, andyd, antonmnster, 69Torino, 3 invisible), 920 Guests and 33 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64806 Members
68 Forums
282100 Topics
4709884 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4615917 - 12/27/17 03:10 PM ASTM D97 - Pour Point
Shannow Offline


Registered: 12/12/02
Posts: 38960
Loc: 'Stralia
Not criticism of the DIY testing going on, but explaining why I did the cylindrical cylinder "knockover" tests, and a bit on pour point.

Here's a video of the actual pour Point test type procedure.



Note that it's a relatively "gentle" test, and the pour point is at the point that it stops moving for 5 seconds, plus 3C...(note, you can see why it doesn't really tell you about lubrication).

Top
#4615926 - 12/27/17 03:21 PM Re: ASTM D97 - Pour Point [Re: Shannow]
Linctex Offline


Registered: 12/31/16
Posts: 5665
Loc: Waco, TX
Originally Posted By: Shannow
(note, you can see why it doesn't really tell you about lubrication).


Just its ability to be pumped?
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4615931 - 12/27/17 03:25 PM Re: ASTM D97 - Pour Point [Re: Linctex]
CT8 Offline


Registered: 10/09/14
Posts: 10542
Loc: Idaho
Originally Posted By: Linctex
Originally Posted By: Shannow
(note, you can see why it doesn't really tell you about lubrication).


Just its ability to be pumped?
From the sump to the top of the engine!
_________________________
Artificial intelligence is no match for natural stupidity, we shall prevail

Top
#4615934 - 12/27/17 03:28 PM Re: ASTM D97 - Pour Point [Re: Linctex]
Shannow Offline


Registered: 12/12/02
Posts: 38960
Loc: 'Stralia
Originally Posted By: Linctex
Originally Posted By: Shannow
(note, you can see why it doesn't really tell you about lubrication).


Just its ability to be pumped?


Nope, the MRV does that...the MRV is the ability for the oil to
a) fall into the pick-up tube without forming a "step" (yield point)
b) get sucked up the pump intake.

They used pour point for a long time, but found it to be generally useless at preventing failures under specific cooling rates.

Look at the data sheets for some W synthetics and they have amazing pour points, but still only meet 5W ... that's why.

It's why all those 5W at -40C pour tests tell a story, but not what happens in your engine.

Top
#4615944 - 12/27/17 03:41 PM Re: ASTM D97 - Pour Point [Re: Linctex]
Garak Offline


Registered: 12/05/09
Posts: 24051
Loc: Regina, Saskatchewan, Canada
Originally Posted By: Linctex
Originally Posted By: Shannow
(note, you can see why it doesn't really tell you about lubrication).


Just its ability to be pumped?

I would say that pour point only tells you, and then only indirectly and not terribly reliably, something about the base stocks of the oil. In that vein, and also with respect to pumpability, Royal Purple's CI-4+ 15w-40 had a pour point of something like -45 C. Obviously, given that it's a 15w-XX, it's not going to pump properly at all at -45 C. But, that was likely a primarily PAO base stock.
_________________________
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

Top