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Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 2+: 60 results shown for Viscosity.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Re: oil viscosity
    Historical mailing list - John Rodgers
    Tue, 1 Jun 2004 23:09:05 -0500
    Jason Kirk wrote: >While we're on the subject of oil, can someone tell me what grade I >should be using in my 2...
  • Noisy lifter update
    Historical mailing list - Darryl Carpenter
    Wed, 15 Sep 2004 20:38:23 -0400
    ...Additives that increase viscosity can reduce bleed-down, but they come with the same undesireable side-effects of changing viscosity to one too heavy...
  • Synthetic Oil Conversion, What is the best Easy Access Brand, and Viscosity?
    Historical mailing list - robertmstewart
    Sun, 29 Jan 2006 01:43:09 -0500
    ...What is the suggested viscosity for winter, and hot summer? I have read in the archives several suggested oil weights: 5W/40 5W50 synthetic...
  • Re: Boston Bobs tale of an engine stripper or .19 Main bearinginfo was Flickerin oil light on 85 auto
    Historical mailing list - John Rodgers
    Sun, 7 Apr 2002 15:05:59 -0500
    ...Only problem is you never answered the original question > about oil viscosity! > > I've been advised to never use multi vis oils (yes - a...
  • engine break in oil?
    Historical mailing list - Jonathan Farrugia
    Sat, 14 Aug 2004 15:42:41 -0400
    ...what weight straight weight straight weight non-detergent multi viscosity please let us know why you prefer the oil you do. other break in...
  • Re: Castrol, QT, 5W50 vs. Amsoil - cold no-start
    Historical mailing list - Jack R.
    Tue, 6 Feb 2007 10:45:23 -0500
    ...Helps Engine Start Easier The Cold Crank Simulator Test determines the apparent viscosity of lubricants at low temperatures and high shear rates. Viscosity of...
  • Fwd: Castrol, QT, 5W50
    Historical mailing list - mordo
    Tue, 6 Feb 2007 11:24:21 -0500
    ...The viscosity ratings work as follows. The lower number is the viscosity at 40C. The upper number is the viscosity at 100C. There can...
  • Re: Disappearing Coolant - Head Leak?-Engine Oil Viscosity!
    Historical mailing list - Dennis Haynes
    Wed, 15 Sep 2004 21:12:24 -0400
    ...This reduces the pumps efficiency (internal slip or leakage) and the pump can not maintain pressure as the oil viscosity also goes down with...
  • Re: Newbie Oil Question (Facts added)(long)
    Historical mailing list - Subject: Re: Newbie Oil Question (Facts added)(long)
    2 Apr 92 19:33:31 GMT
    ...viscosity, viscosity index (VI), flash point, pour point, % sulfated ash, and % zinc. Viscosity is the measure of how thick an oil is. This is...
  • Re: Oil light flickering at 1k or < rpms
    Historical mailing list - Dennis Haynes
    Sat, 23 Jul 2011 09:05:59 -0400
    ...Oil viscosity can add to the problem. If you have the correct oil viscosity, filled to the proper level and you can confirm the...
  • Re: low oil warning light/buzzer
    Historical mailing list - Scott McDonell
    Tue, 9 Sep 1997 13:57:51 -0700
    ...Hi Budd, Just so happens that I also have an '86 Syncro, and if I run a multi-viscosity oil like the 10-40...
  • RE: Power Steering Fluid Choice
    Historical mailing list - Dennis Haynes
    Wed, 12 Mar 97 04:33:15 UT
    ...Note that the Pentosin is available in two viscosity's. There is a 7.1 and an 11.5 I think. The thinner stuff...
  • Re: DOn't use SM rated oils Re: Flickering Oil Light 84 auto
    Historical mailing list - David Kao
    Thu, 13 Sep 2007 11:50:49 -0700
    ...But 20W-50 dino oil means 20 weight oil > >in winter (50 in hot summer). > > No, 20W is the viscosity rating at -10C, 50...
  • Re: Mixing oils with different weights.
    Historical mailing list - Dave Mcneely
    Fri, 20 May 2011 16:42:28 -0500
    Don, I don't know how you would calculate a viscosity or performance number out of such mixing. However, the manual with my '91...
  • Re: Max Engine Oil Temperatures
    Historical mailing list - David Marshall
    Mon, 1 Jul 2002 14:39:03 -0700
    ...That is, the effective viscosity of the oil in the sump at 275F is nowhere the same as that viscosity in the con rod...
  • Re: Oil Weight Recomendation
    Historical mailing list - John Brush
    Wed, 21 Aug 2002 11:09:43 -0400
    ...pressure, I was joking :( >10-30W could be far too low viscosity under cold conditions. I seldom mow my lawn when it is snowing...
  • Re: Disappearing Coolant - Head Leak?
    Historical mailing list - Vince S
    Wed, 15 Sep 2004 17:28:00 -0700
    ...Using very high viscosity oil is old-school thinking. The chart does not distinguish between petroleum and synthetic so I interpreted it have to...
  • Re: Synthetic Oil Conversion, What is the best Easy Access Brand, and Viscosity?
    Historical mailing list - Dennis Haynes
    Sun, 29 Jan 2006 09:31:18 -0500
    ...Synthetic Oil Conversion, What is the best Easy Access Brand, and Viscosity? I know you have heard this before, but I have to ask...
  • Re: Oil Change - Haveline to Mobil 1
    Historical mailing list - George Goff
    Sat, 28 Dec 2002 13:25:56 EST
    ...It is available in a 15w50 viscosity index. George
  • Re: OK, Swepco gear oil..
    Historical mailing list - Mike S
    Thu, 22 Apr 2010 12:11:03 -0400
    ...I also have some Valvoline 80w-90w Gear Oil on >hand. >That seems to be right between the two in viscosity. MT-90 is...
  • Engine Oil and Cold Weather
    Historical mailing list - Chad G
    Tue, 6 Nov 2001 00:43:28 -0500
    With winter approaching I was wondering if it would be smart to change to a different viscosity oil. I live in southen Ontario Canada...
  • Mobile1 15/50
    Historical mailing list - dylan friedman
    Tue, 6 Feb 2007 07:36:06 -0800
    ...The viscosity ratings work as follows. The lower number is the viscosity at 40C. The upper number is the viscosity at 100C. There can...
  • Re: [syncro.org] bad vibes
    Historical mailing list - Al Knoll
    Thu, 7 Oct 2004 18:23:26 -0700
    ...The VC only couples when the fluid thickens (increased viscosity). No fluid, no coupling....he he .. watchit ben, she's listening
  • Re: What power steering fluid to use?
    Historical mailing list - Edward Duntz
    Mon, 14 Feb 2011 08:55:32 -0500
    ...vanagon@GERRY.VANAGON.COM > > All the Dexron fluids are basically the same viscosity. The later ones are > performance-stability improvements and friction modifier characteristics...
  • new viscous coupling info
    Historical mailing list - Alistair Bell
    Mon, 16 Aug 2010 09:58:31 -0700
    ...that is listed as having viscosity of 1000 centistokes, which if I have it right, is only 1000 mm^2/s. Maybe someone screwed...
  • Re: Switching to synthetic oil?
    Historical mailing list - Loren Busch
    Fri, 8 Jun 2007 08:16:36 -0700
    I'm curious as to why you want to change to a lower viscosity oil rather than going with say 15W-50 like Mobil...
  • Oil viscosity ??'s
    Historical mailing list - Joseph Tu
    Mon, 21 Jun 1999 10:50:00 -0700
    Hello, I am wondering if it is okay to use a 5w-30 motor oil in our waterboxer motors. I know it is way...
  • Re: Oil sensor still buzz after going to Mahle oil filter, now what?
    Historical mailing list - John
    Tue, 25 Jul 2000 22:18:07 -0400
    ...Change viscosity to 20w50. > > G. Matthew Bulley > Bulley-Hewlett > Mount Olive, NC USA > 877.658.1278 Tollfree > www.bulley-hewlett.com > > My Agenda: Stop...
  • Re: oil viscosity
    Historical mailing list - The corruptor
    Wed, 2 Jun 2004 13:34:36 -0400
    I did dome oil pressure test with different oil grade, to get a slightly higher pressure i use Castrol 20w50 in summer time, 10w40...
  • Re[2]: 86 Westy Syncro oli woes part II....
    Historical mailing list
    Thu, 20 Jun 96 15:44:37 PST
    ...These additives are expensive and the larger the variation the more required and the harder it is to maintain the higher viscosity. These additives...
  • Re: Mobil 1: 15W50 NLA? Is 5W50 as good when warm?
    Historical mailing list - Dennis Haynes
    Thu, 22 Jun 2006 06:28:07 -0400
    ...Also, wider viscosity rang oils are not as stable as they rely more on the additives to maintain viscosity at higher temps. Dennis -----Original...
  • Re: Fwd: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - OlRivrRat
    Wed, 13 Mar 2013 18:40:12 -0600
    ...COMCAST.NET> wrote: >>> Dennis Haynes wrote: > >>>> The *w-50 gives that viscosity edge the water boxer needs. >>> > OleRiverRat wrote: > >>> I guess if you are...
  • Re: Yankee oil viscosity for 2.1?
    Historical mailing list - Laurence Smith
    Thu, 30 Jan 2003 23:25:26 -0500
    ...Yankee oil viscosity for 2.1? > > > Well, Yankee might be a bit harsh, so I'll call my self a > redneck. There!! > > Our family...
  • 5w50 Oil in winter?
    Historical mailing list - Brad Estergaard
    Tue, 4 Nov 2003 20:47:39 -0800
    ...Seems like a 5w50 would give my vanagon a nicer startup when cold and still have the higher viscosity when warmed up. Any reasons...
  • Re: Does a worn pressure relief valve cause Oil pressure buzzer?
    Historical mailing list - G.M.Bulley
    Sat, 5 Oct 2002 16:13:42 -0400
    Motor HoneyR is the brand name of a viscosity improver sold at most FLAPS. There are other brands like Stop SmokeR or STP (blue...
  • Re: Oil Viscosity Recommendations
    Historical mailing list - Durby Suniga
    Wed, 19 Jul 2000 12:48:51 -0700
    I have also used 20/w50 oil but in regards to oil filters, Bosch or even Fram filters have worked flawlessly for me and...
  • Oil Temperature
    Historical mailing list - John Iseman
    Mon, 1 Jul 2002 12:53:21 EDT
    ...With the oil stabilizer I get no warning buzzer, apparently because the stabilizer has increased the viscosity sufficently to prevent the thinning of the...
  • Re: Engine Oil and Cold Weather
    Historical mailing list - Larry Alofs
    Tue, 6 Nov 2001 21:46:54 -0600
    Chad G wrote: > With winter approaching I was wondering if it would be smart to change to a > different viscosity oil. I live in...
  • mixing oils?
    Historical mailing list - Matthew
    Wed, 24 Sep 2003 10:24:20 -0700
    ...It was all new oil but some was 10W-30, some was 20W-50, and the other was something else in viscosity. All was...
  • Re: Make Best of Synthetic Oil?
    Historical mailing list
    Sat, 18 Sep 1993 13:27:09 GMT
    ...viscosity, viscosity index (VI), flash point, pour point, % sulfated ash, and % zinc. Viscosity is the measure of how thick an oil is. This is...
  • Re: Motor Oil (Synthetic)
    Historical mailing list - Dennis Haynes
    Wed, 13 Jan 2010 00:13:55 -0500
    ...We need oil that could flow at the lowest prevailing temperatures yet maintain viscosity at full operating temperature. Viscosity index improvers and multi-weight...
  • Report on the cause of death, my 1.9 TD Vanagon
    Historical mailing list - karl
    Mon, 12 Jul 1999 22:44:27 -0400
    ...Bearing / bushing wear indicated." In the 'physical data' section, the viscosity of the oil at 100 degrees C is 63.1(!!), water by volume...
  • Automatic Transmission Fluid and Gear Oil Comparrison and Feedback please
    Historical mailing list - Robert Stewart
    Sun, 3 May 2009 17:54:13 -0400
    ...What product/viscosity they are using? How many quarts are needed for the ATF and then for the Gear Oil? I am looking at...
  • Some links and comments on oil
    Historical mailing list - Stuart MacMillan
    Wed, 21 Aug 2002 10:50:06 -0700
    ...Multi vis oils use polymers to extend the viscosity, and these can break down causing ring and valve problems. That's why they aren...
  • Re: has anyone seen July 2003 VWT?
    Historical mailing list - George Thorburn
    Sun, 18 May 2003 22:59:11 -0600
    ...I don't >>like the conclusion statement though: "Of course, the >>car now leaks because >>of the viscosity of the synthetic oil, but I...
  • Best Oil Viscosity?
    Historical mailing list - tabe johnson
    Mon, 1 Dec 2003 13:22:48 -0500
    I ordered my Bentley, but it hasn't arrived yet. Can someone please tell me what the suggested temperature range for 10W30 is in...
  • Oil Viscosity Recommendations
    Historical mailing list - Wes Neuenschwander
    Wed, 19 Jul 2000 08:13:01 -8
    ...Does anyone have any information on such a revised oil viscosity recommendation or know how I could contact VWoA directly to confirm or deny...
  • Re: Synthetic Oil Conversion, What is the best Easy Access Brand, and Viscosity?
    Historical mailing list - Dennis Haynes
    Sun, 29 Jan 2006 10:59:58 -0500
    ...Synthetic Oil Conversion, What is the best Easy Access Brand, and Viscosity? Living in northern Maine I see very cold winter temperatures which make...
  • Re: oil blow-by on new 2.1
    Historical mailing list - Stephen Steele
    Thu, 12 Jun 2003 05:13:38 -0400
    ...Changed the oil to a lower viscosity and the friend is not experiencing the blow by now. Seems the rings are taking a little...
  • Re: heaviest oil to use??
    Historical mailing list - Robert Cardo
    Sun, 4 Sep 2005 12:09:54 -0500
    ...They do have less preponderence of losing their viscosity in heat, and with time. In this summer's heat I would have no problem...
  • Re: low oil warning light/buzzer
    Historical mailing list - TBill
    Tue, 9 Sep 1997 21:34:10 -0700
    ...Might be worth a try going to a single-viscosity oil. > > What do the techies on the list think of using 30-weight versus...
  • Re: Synthetic Oil for a 2.1?
    Historical mailing list - Dennis Haynes
    Sun, 27 Jul 2003 20:13:43 -0400
    Due to the operating temps, expansion characteristics, and minimal oil pump the WB needs higher viscosity oils. I use the Mobil 1 15w-50...
  • Re: Adding Slick50 to engine and transmission of 91 Westy,Opinion?
    Historical mailing list - Chris S
    Mon, 9 Sep 2002 11:53:02 -0400
    ...The way I understand it is that synthetics flow better at lower temperatures and keep their viscosity better at higher temperatures. Hence the higher...
  • Re: winter oil
    Historical mailing list - 1980 VW Westfalia \"Pokey\"
    Mon, 6 Nov 2000 21:03:58 -0500
    ...what > you're after is better cold starts? Note that the second number is the > viscosity rating once the oil is up to operating...
  • Re: Mixing oils with different weights.
    Historical mailing list - Chris S
    Fri, 20 May 2011 21:54:41 -0400
    ...17:42 Dave Mcneely <mcneely4@COX.NET> napisał(a): > Don, I don't know how you would calculate a viscosity or performance number out...
  • Re: OIL, What do you use?
    Historical mailing list - Yi-Ruey Wei
    Sun, 24 Oct 1999 12:10:08 -0500
    ...BTW, isn't Castrol Synthetic 5W-50 more suitable for VW's than Mobil 1 15W-50 simply by offering lower viscosity (5W) for...
  • Re: Yankee oil viscosity for 2.1?
    Historical mailing list - Mike
    Thu, 30 Jan 2003 20:07:55 -0800
    ...Yankee oil viscosity for 2.1? > Well, Yankee might be a bit harsh, so I'll call my self a redneck. There!! > > Our family...
  • Re: DOn't use SM rated oils Re: Flickering Oil Light 84 auto
    Historical mailing list - Dennis Haynes
    Sun, 16 Sep 2007 09:37:47 -0400
    ...With conventional oil, the 10w-40 also represents a wide range, relying on viscosity improvers to get the rating often making for an un...
  • Re: Is it normal...
    Historical mailing list - Dennis Haynes
    Wed, 15 Feb 2006 21:45:58 -0500
    ...When over full, oil temps go up, viscosity goes down. Oil lights and buzzers get tested after long highway runs. Very high speeds make...
  • oil pressure and 5-30 synthetic oil
    Historical mailing list - hugo lerner
    Tue, 21 Mar 2000 11:17:30 -0700
    ...my mechanic warned me that he has seen problems with oil pressure and low viscosity oil in other vans with non-synthetics. my question...