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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 1+: 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: vanagon Digest - 5 Feb 2007 to 6 Feb 2007 - Special issue (#2007-165)
    Historical mailing list - Keith Hughes
    Tue, 6 Feb 2007 11:59:45 -0700
    ...The viscosity ratings work as follows. The lower number is the viscosity at 40C. The upper number is the viscosity at 100C. There can...
  • Clarity I hope.... Re : How VC's work
    Historical mailing list - (Christopher j. Pierce)
    Sat, 24 Apr 1999 20:23:11 EDT
    ...having or characterized by viscosity <~ flow> viscosity index (noun) First appeared 1929 : an arbitrary number assigned as a measure of the constancy of the...
  • should 10W-40 be avoided?
    Historical mailing list - Jean-Guy Savoie
    Sun, 15 Oct 2000 15:40:49 -0300
    ...The wide viscosity range oils, in general, are more prone to viscosity and thermal breakdown due to the high polymer content. It is the...
  • What Viscosity of Pag Oil ?
    Historical mailing list - John C...
    Fri, 24 Aug 2007 22:04:48 +0000
    Hi All, I'm converting to 134a, and, I need to buy some Pag Oil, but dont know What Viscosity of Pag Oil I...
  • Single-viscosity oil for summer
    Historical mailing list - Sam Scholten
    Mon, 1 Jun 1998 06:28:22 -0700
    ...Checking the "notes on oil" segment on the Volkswagen Bus Web Server, I read about the polymers used to thicken the viscosity of the...
  • Re: technical oil viscosity question
    Historical mailing list - Roger&Zoe Ann Banker
    Sun, 14 Nov 1999 00:16:08 EST
    No matter what the viscosity, warm oil flows easier then cold oil. Warm oil is not thicker than cold oil. As for multi-weight...
  • Viscous Coupling Fluid info
    Historical mailing list - Todd Francis
    Fri, 20 Dec 1996 11:18:43 -0800
    ...THIS UNIQUE SILICON FLUID IS PATENTED and has the ability to increase its viscosity quickly when it is heated. The fluid's viscosity does...
  • R-134a Oil
    Historical mailing list - Jason Yasment
    Wed, 13 Jun 2001 18:06:40 -0700
    ...is this iol compatable with 134a? I fnot which of the following should I use? Esther PAG low viscosity PAG high viscosity Thanks, Jason...
  • Re: should 10W-40 be avoided?
    Historical mailing list - David Marshall
    Sun, 15 Oct 2000 17:57:15 -0700
    ...The wide viscosity >range oils, in general, are more prone to viscosity and thermal breakdown >due to the high polymer content. It is the...
  • Re: oil viscosity
    Historical mailing list - The corruptor
    Tue, 1 Jun 2004 23:37:33 -0400
    20w50, always........
  • Re: should 10W-40 be avoided?
    Historical mailing list - Scott De Santi
    Sun, 15 Oct 2000 17:32:54 EDT
    ...Mobil 1 uses no viscosity improvers in their 5W-30, and I assume the new 10W-30 >> Any information on the Mobil 1 15W...
  • Re: Best Oil Viscosity?
    Historical mailing list - Dennis Haynes
    Mon, 1 Dec 2003 15:12:37 -0500
    ...The Waterboxer needs a high viscosity oil due to it's poor tolerances, marginal oil pump capacity, and the fact that the case expands...
  • Re: no GL-4 available
    Historical mailing list - Mark Dorm
    Wed, 6 Sep 2000 01:35:23 PDT
    ...The synthetic base oils used have a very high viscosity index which provides relatively constant viscosity as temperature changes. MTL is a low 70W...
  • Re: Viscosity degradation in oils
    Historical mailing list - Tom Miller
    Wed, 2 Jun 2004 12:08:03 -0400
    ...Viscosity degradation in oils > The kodachrome fades quickly now but I recall a good summary of multigrade > oils to mention that the viscosity of...
  • technical oil viscosity question
    Historical mailing list - Davidson
    Sat, 13 Nov 1999 18:42:34 -0800
    ...My understanding is that when using multi viscosity oil like 20 - 50 that when the oil heats up the oil actually gets thicker (50...
  • Re: Best Oil Viscosity? Slow leaky Heads
    Historical mailing list - Dennis Haynes
    Mon, 1 Dec 2003 23:09:57 -0500
    ...Best Oil Viscosity? Slow leaky Heads I have always used Castrol 40W with excellent results. Never an oil light problem. Try it. Jaime Forero...
  • Re: 91 Vanagon, oil pressure anomaly
    Historical mailing list
    Sat, 8 Jun 1996 00:14:45 -0400
    ...I'm not >sure of the viscosity of the previous oil as I just acquired the van, >however, I just changed the oil (20...
  • Max Engine Oil Temperatures
    Historical mailing list - Frank Grunthaner
    Mon, 1 Jul 2002 15:57:41 EDT
    ...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: how engine oil degrades
    Historical mailing list
    Sun, 05 Jan 1997 13:51:21 -0500
    ...My best guess is that the overheat of the engine cooked the oil and caused it to loose its viscosity. (I dont believe my...
  • What Red Line Tranny Oil??????
    Historical mailing list - Chad G
    Tue, 18 Dec 2001 22:21:36 -0500
    what viscosity of Red Line oil is recommended for a 4sp tranny??
  • Re: Engine Oil and Cold Weather
    Historical mailing list - Kenneth D Lewis
    Tue, 6 Nov 2001 06:34:11 -0500
    ...If you get the oil light flicker try the next higher viscosity. Good Luck and Drive Safely Ken Lewis 86 Crewcab,60 356 http...
  • *very long* All you need to know on Synthetic oil
    Historical mailing list - Dan Houg
    Wed, 3 Apr 1996 16:32:53 CST6CDT
    ...This means that the viscosity of a fluid generally de- creases with temperature, and increases as the temperature drops. If a fluid's viscosity...
  • Re: Cold starting oil report Mobil 1 15w-50
    Historical mailing list - Ed McLean
    Tue, 26 Jan 2016 13:15:39 -0500
    This probably means the viscosity of the cold oil is allowing the pump to overwhelm the pressure relief valve that's suppose to limit...
  • Re: What Viscosity of Pag Oil ?
    Historical mailing list - Larry Alofs
    Fri, 24 Aug 2007 20:06:50 -0500
    ...I need to buy some Pag Oil, but dont know > What Viscosity of Pag Oil I should be using? > Anyone know? > Thanks, > John C... >
  • Re: thicker oil viscosity question
    Historical mailing list - Tim & Kim Dayton
    Wed, 10 Apr 2002 20:54:59 -0400
    ...I attributed the temperature difference not to the viscosity change, rather the ambient temperature change. Essentially I wasted 4 good quarts of free Castro...
  • Re: Which is better, synthetic oil or conventional oil? from the AAA website
    Historical mailing list - tmiller
    Wed, 2 Jun 2004 20:05:15 -0400
    ...Thus, the viscosity changes by the hour of use. Wax and paraffin cause the oil to thicken in cold weather and thin out when...
  • Re: technical oil viscosity question
    Historical mailing list - David Beierl
    Sat, 13 Nov 1999 22:26:55 -0500
    At 21:42 11/13/99 , Davidson wrote: >Okay, I'm confused about something.... >My understanding is that when using multi viscosity oil like...
  • Re: Best Oil Viscosity? Slow leaky Heads
    Historical mailing list - Jaime Forero
    Mon, 1 Dec 2003 21:00:02 -0600
    ...Best Oil Viscosity? Slow leaky Heads > > I had a problem this summer in NYC where the oil light was going on at idle, > > replaced...
  • Re: Oil Pressure Gauge Kit
    Historical mailing list - Keith Hughes
    Sun, 11 Mar 2018 19:07:26 +0000
    ...At zero C the viscosity of SAE 10W-40 oil is the same as SAE 10W oil, and the same as SAE 40 oil...
  • Re: Oil Weight Reccomendation
    Historical mailing list - Bill N
    Tue, 20 Aug 2002 21:50:55 -0700
    ...Multi-viscosity oil does not thin out as much as engine temp rises, so it protects better when the engine warms up while still...
  • PAG Oil Viscosity for 134a conversion
    Historical mailing list - Jason Yasment
    Wed, 23 May 2001 22:15:22 -0500
    ...What viscosity of PAG oil should we use? What sizes are the "o" rings used when replacing the compressor, rcvr/dryer and expansion valve...
  • Viscosity degradation in oils
    Historical mailing list - Al Knoll
    Wed, 2 Jun 2004 08:28:19 -0700
    The kodachrome fades quickly now but I recall a good summary of multigrade oils to mention that the viscosity of the oil is dependent...
  • Re: STP Gas Treatment
    Historical mailing list - Dennis Haynes
    Thu, 10 Mar 2011 23:51:11 -0500
    As you say oil technology has changed a lot but the viscosity rating system has not. The Waterboxer needs higher viscosity oil due to...
  • Re: Best Oil Viscosity?
    Historical mailing list - John Meeks
    Tue, 2 Dec 2003 23:57:48 -0500
    ...Best Oil Viscosity? > > >I've been using the 20w-50 most of the year and the engine has >been pretty happy with it, completely...
  • more oil viscosity...
    Historical mailing list - Davidson
    Sun, 14 Nov 1999 08:46:32 -0800
    Okay, So is the 'thickness' of say 20-50 oil the same for both Dino and Synthetic oil at the same operating temperature? Bill
  • Re: oils and gasoline Oil Viscosity at temparature.
    Historical mailing list - Dennis Haynes
    Thu, 30 May 2013 00:40:03 -0400
    ...Regarding synthetic oils and viscosity, the SAE rating is "effective viscosity," not physical viscosity. A 15w-50 synthetic oil is physically thinner than a...
  • Re: Best Oil Viscosity?
    Historical mailing list - Bill H.
    Tue, 2 Dec 2003 20:05:43 -0800
    ...The Waterboxer needs a high viscosity oil due to it's poor tolerances, marginal oil pump capacity, and the fact that the case expands...
  • oil viscosity
    Historical mailing list - Jason Kirk
    Tue, 1 Jun 2004 15:06:32 -0700
    While we're on the subject of oil, can someone tell me what grade I should be using in my 2.1 during the...
  • Re: Oil Weight Reccomendation
    Historical mailing list - Kim Brennan
    Wed, 21 Aug 2002 13:56:43 EDT
    ...Multi-viscosity oils are blended/constructed to mitigate this (and synthetics are better than dino in this regard), but they don't really get...
  • Re: thicker oil viscosity question
    Historical mailing list - Dennis Haynes
    Wed, 10 Apr 2002 20:00:36 -0400
    ...thicker oil viscosity question this issue may have been beat to death in the past, however I need to revive it for just a...
  • Ed Hackett's big oil FAQ (long) Subject: New oil data
    Historical mailing list
    Thu, 14 Jul 94 8:11:24 PDT
    ...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: Fwd: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - Dave Mcneely
    Wed, 13 Mar 2013 17:40:40 -0500
    ---- OlRivrRat <OlRivrRat@COMCAST.NET> wrote: > > Dennis Haynes wrote: > >> The *w-50 gives that viscosity edge the water boxer needs. > > OleRiverRat wrote: > > I guess if...
  • Re: Oil Viscosity Recommendations
    Historical mailing list - Rico Sapolich
    Wed, 19 Jul 2000 11:32:18 EDT
    In a message dated 7/19/00 11:15:16 AM, wesn@eskimo.com writes: << how I could contact VWoA directly to confirm or...
  • Re: no GL-4 available
    Historical mailing list - John Rodgers
    Wed, 6 Sep 2000 19:20:43 -0500
    ...The synthetic base > oils used have a very high viscosity index which provides relatively > constant viscosity as temperature changes. MTL is a low 70W...
  • Re: oil viscosity
    Historical mailing list - Jason Kirk
    Tue, 1 Jun 2004 22:38:01 -0700
    ...oil viscosity Jason Kirk wrote: >While we're on the subject of oil, can someone tell me what grade I >should be using in...
  • Re: oil in a 1988 gl
    Historical mailing list - Bill Davidson
    Sat, 6 Jan 2001 17:33:52 -0800
    ...see your owner's manual or the bentley for oil viscosity recommendations for various temperature ranges. Bill
  • winter oil
    Historical mailing list - Bradley Flubacher
    Mon, 6 Nov 2000 20:22:09 -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: Brake fluid
    Historical mailing list - Jack R
    Thu, 3 Feb 2022 11:20:40 -0500
    ...1062 kg/m� - Kinematic viscosity at 40�C: 6.4 mm�/s - Kinematic viscosity at -40�C: < 700 mm�/s - Melting point: >-50�C...
  • Re: What power steering fluid to use?
    Historical mailing list - Dennis Haynes
    Sun, 13 Feb 2011 22:08:39 -0500
    All the Dexron fluids are basically the same viscosity. The later ones are performance-stability improvements and friction modifier characteristics. For power steering viscosity...
  • Re: Best Oil Viscosity? Slow leaky Heads
    Historical mailing list - robertmstewart
    Mon, 1 Dec 2003 17:19:34 -0500
    ...The Waterboxer needs a high viscosity oil due to it's poor > tolerances, marginal oil pump capacity, and the fact that the case > expands...
  • Re: Oil viscosity ??'s
    Historical mailing list - Dennis Haynes
    Wed, 23 Jun 1999 22:46:02 -0400
    ...Oil viscosity ??'s >Hello, > >I am wondering if it is okay to use a 5w-30 motor oil in our waterboxer >motors. I know...
  • Re: oils and gasoline Oil Viscosity at temparature.
    Historical mailing list - Dennis Haynes
    Thu, 30 May 2013 11:10:19 -0400
    ...A common viscosity > measurement is centistokes, (cSt). SAE 50 will have a viscosity near 18 cSt > at 100C regardless of whether it is a...
  • Re: transaxle lubricant
    Historical mailing list - Austin
    Wed, 2 Dec 1998 19:04:20 -0800
    ...The synthetic base oils used have a very high viscosity index which provides relatively constant viscosity as temperature changes. MTL is a low 75W...
  • more on vc humping
    Historical mailing list - Alistair Bell
    Sat, 3 Apr 2010 15:18:34 -0700
    ...After examining the power law model, the visco-pseudoplastic model and the temperature-dependent viscosity model for the variable viscosity, it was found that...
  • Re: DOn't use SM rated oils Re: Flickering Oil Light 84 auto
    Historical mailing list - Mike S
    Thu, 13 Sep 2007 14:11:32 -0400
    ...No, 20W is the viscosity rating at -10C, 50 is the viscosity rating at 100C (approximate engine operating temperature). Unless your engine doesn't...
  • Re: Castrol, QT, 5W50
    Historical mailing list - Dennis Haynes
    Tue, 6 Feb 2007 14:53:31 +0000
    ...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: oils and gasoline Oil Viscosity at temparature.
    Historical mailing list - Don Hanson
    Thu, 30 May 2013 07:23:56 -0700
    ...A common viscosity > measurement is centistokes, (cSt). SAE 50 will have a viscosity near 18 cSt > at 100C regardless of whether it is a...
  • Re: Oil light & buzzer
    Historical mailing list - Jfp w/2 WBXs
    Tue, 4 Feb 2003 02:01:32 +0000
    Hi, Obviously the oil change played a role in this occurrence, what was the viscosity of the new engine oil? Regards, John _________________________________________________________________ The new...
  • Re: Oil pressure on a long trip
    Historical mailing list - Dennis Haynes
    Wed, 10 Apr 2002 20:28:14 -0400
    It would be helpful to know what viscosity oil you are using. Assuming you have the correct oil pressure switches, you may be getting...
  • Re: oil viscosity... best 10W60 brand / option?
    Historical mailing list - Jack R
    Wed, 3 Jun 2020 16:07:59 -0400
    ...oil viscosity. Note the recommended oil viscosities below. I also sent a link with a copy of the oil viscosity chart from an owner...