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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 7+: 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: Going to Vegas for a business trip, anything I should be seeing while there?
    Historical mailing list - Phil Zimmerman
    Tue, 7 Feb 2012 05:03:03 -0500
    ...41:43 -0700, Karl Wolz <wolzphoto@Q.COM> wrote: >Tires? Oil viscosity and polymer thermal breakdown? > >Karl Wolz >Sent from my electronic umbilicus > >On...
  • Re: 20W50 Castorl Engine Oil
    Historical mailing list - Don Hanson
    Thu, 6 Aug 2009 16:26:32 -0700
    ...Remember that gear lube weights are computed quite differently from > motor oil weight so the viscosity isn't as different as the numbers > suggest...
  • Re: 20W-50 oil question
    Historical mailing list - David Kao
    Wed, 3 Oct 2007 21:06:31 -0700
    ...I can see the benefit of the 50 viscosity for vanagons. But 20w part is really bad for cold start and first few miles...
  • Re: Oil recommendations simplified
    Historical mailing list - John Rodgers
    Sun, 4 Dec 2011 12:35:33 -0600
    ...The other consideration is that the multi-range oils of the day did > not maintain viscosity well and often were not even stable. The...
  • Re: From flickering oil light to valves clacking
    Historical mailing list - Tyler Hardison
    Sun, 16 Aug 2015 21:22:53 -0700
    ...Tyler, > > MMO is a thin, light solvent--you just diluted the physical thickness > (viscosity) of your thicker oil! How much did you add? > > Stuart > > >
  • Re: '86 steering whines...
    Historical mailing list
    Tue, 16 Jul 1996 23:19:57 -0300 (ADT)
    ...I think the extra viscosity was enough to push old seals over the rim. The dealer fluid, Pentosin CF-11 at $35/litre is...
  • Re: 20W-50 oil question
    Historical mailing list - Mike Collum
    Thu, 4 Oct 2007 01:28:21 -0400
    ...I can see the benefit of the 50 viscosity >>>>> for vanagons. But 20w part is really bad for cold start and first few >>>>> miles...
  • Re: Oil filter Coolers......just more snake oil?
    Historical mailing list - Dennis Haynes
    Sun, 24 Aug 2003 16:14:25 -0400
    ...As it cools on the surface of a can or inside an oil cooler, the slightly thicker viscosity will cause it to flow slower...
  • Re: Which is more likely?
    Historical mailing list - Dennis Haynes
    Mon, 24 Mar 2008 19:30:44 -0400
    What viscosity oil are you using? (20w-50 or 15w-50 synthetic). Is the engine staying cool at highway speeds or is the radiator...
  • Re: Dodged a bullet -- blowed the oil filter right off Long winded
    Historical mailing list - Dennis Jowell
    Sun, 3 Jan 2016 18:53:11 -0500
    ...The next important factor >>> is the viscosity index. This is how the oil changes viscosity with >>> temperature outside this range. For cold weather operation...
  • Re: That oil buzzer
    Historical mailing list - John Rodgers
    Tue, 5 May 2015 11:23:35 -0500
    ...Seriously, the water > > boxer can be very sensitive to oil level in addition to viscosity. When > > overfilled the crank and cam will churn in...
  • The Great Oil Question
    Historical mailing list - Scott De Santi
    Sun, 24 Oct 1999 16:23:15 EDT
    I<< BTW, isn't Castrol Synthetic 5W-50 more suitable for VW's than Mobil 1 15W-50 simply by offering lower viscosity (5W...
  • Re: Dodged a bullet -- blowed the oil filter right off Long winded
    Historical mailing list - Dennis Jowell
    Sun, 3 Jan 2016 19:30:10 -0500
    ...The next important factor >>> is the viscosity index. This is how the oil changes viscosity with >>> temperature outside this range. For cold weather operation...
  • Oil cooling and levels
    Historical mailing list - Easton Trevor
    Tue, 11 Jun 96 15:46:00 DST
    ...Also remember the air cooled engines cooling system uses the viscosity of the oil to determine the ratio of flow through the cooler or...
  • Re: Silicone Syncro Oil Source *maybe*
    Historical mailing list - Scott
    Thu, 19 Dec 1996 18:13:36 -0800
    ...I've never heard of silicon brake fluid having a characteristic of >gelling (or otherwise increasing its viscosity) when subjected to shear >stresses. I...
  • Re: Synthetic Oil(s)
    Historical mailing list - Mark B. Magee
    Sun, 12 Oct 1997 20:48:50 -0500
    ...So even though pressure may fall off due to lower viscosity in hot weather and hotter engine temps, the fantastic film strength remains and...
  • Re: Dodged a bullet -- blowed the oil filter right off
    Historical mailing list - Dave Mcneely
    Sat, 2 Jan 2016 13:15:08 -0600
    ...The next important factor is the viscosity index. This is how > > the oil changes viscosity with temperature outside this range. For cold > > weather operation...
  • Re: Oil light flickering
    Historical mailing list - Dennis Haynes
    Thu, 10 Feb 2011 00:15:49 -0500
    ...The flat four engines both air and water cooled need higher viscosity oils due to design tolerances and some things that happen as these...
  • Re: Tires - Syncro (frequently discussed)
    Historical mailing list - Todd Francis
    Sat, 28 Dec 1996 16:29:45 -0800
    ...flange shaft and the pinion shaft is less than 6% the > > viscosity of the silicon fluid is low. This allows the plates to slip...
  • Bentley on Oils (was: Summer oil recommendation)
    Historical mailing list - Noto-Gaudette
    Fri, 28 May 1999 08:47:41 -0400
    ...The oil viscosity chart on p. 17 is a bar graph; I've typed, below, the approximate outdoor temperature ranges in degrees specified for...
  • Re: what causes low oil pressure
    Historical mailing list - Daniel L. Katz
    Sat, 10 Jan 2004 02:41:29 -0500
    ...It amazed me to see the needle go down as I drove. >2 The synthetic oil of 15w-50 will retain its viscosity when...
  • Re: Fwd: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - Dave Mcneely
    Thu, 14 Mar 2013 09:31:59 -0500
    ...amazed the engine damage that can occur from the wrong oil viscosity in cold weather. Even on non VWs. Modern engines can usually start...
  • Re: [TDI-conversion] NPG+ waterless coolant?
    Historical mailing list - Frank Grunthaner
    Wed, 27 Sep 2006 02:01:35 EDT
    ...The viscosity is higher and the coolant has the appropriate water pump lubrication. The lack of cavitation phenomena are a serious advantage. Operating at...
  • Re: Tiico oil?
    Historical mailing list - Bob Stevens
    Sun, 5 Jan 2003 09:46:16 -0700
    ...I'd suggest a higher viscosity beginning in the spring where you live. Hopefully, you'll get so many other different responses that you...
  • Re: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - Dave Mcneely
    Wed, 13 Mar 2013 09:35:50 -0500
    ...Also you can’t > compare the viscosity requirements of the water boxer to the Subaru engines. > As for the factory recommendations with straight weight...
  • Re: Sticky brakes
    Historical mailing list - C. Abney
    Wed, 29 Jun 2016 16:20:57 -0700
    ...a braking system? Isn't just about a certain level of viscosity? If that's so can't something better be substituted for it...
  • Re: Dodged a bullet -- blowed the oil filter right off Long winded
    Historical mailing list - Dennis Haynes
    Sun, 3 Jan 2016 19:56:52 -0500
    ...The next important factor >>> is the viscosity index. This is how the oil changes viscosity with >>> temperature outside this range. For cold weather operation...
  • Re: Fwd: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - Scott Daniel - Turbovans
    Wed, 13 Mar 2013 18:28:30 -0700
    ...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: Cold-start up oil issue..a solution
    Historical mailing list - Dennis Haynes
    Thu, 4 Oct 2007 12:42:40 -0400
    ...The first number is the viscosity at 104F, the higher number is at 212F. At 0F all sorts of things can happen and viscosity...
  • Re: Oil filter & armrest questions
    Historical mailing list - James Ballen
    Thu, 24 Apr 2008 14:06:39 -0700
    ...Dennis you're right, I'm not sure what viscosity amsoil is in there, but I've inquired with the PO. The napa filter...
  • <Syncro> VC #3
    Historical mailing list
    Thu, 20 Feb 1997 17:43:55 -0400 (AST)
    ...He also mentions that serious sustained overheats will permanently up the viscosity, leading to fulltime lock up, and I think I've read of...
  • Re: Starting problem
    Historical mailing list - Robin Oomkes
    Tue, 12 Dec 2000 15:22:35 +0100
    ...Having the correct oil viscosity helps it to > crank faster. Block heaters work, but what do you do when your car has to > sit...
  • Re: Electronic Rustproofing?
    Historical mailing list - Roger Whittaker
    Mon, 17 Aug 2009 09:27:18 -0700
    Dear Rusty altering the linseed oil to ease its viscosity is not a good idea ... it is what makes it work properly ... the dripping...
  • Re: Oil recommendations simplified-cold starts!
    Historical mailing list - Dennis Haynes
    Sun, 4 Dec 2011 18:48:54 -0500
    ...The other consideration is that the > multi-range oils of the day did not maintain viscosity well and often > were not even stable. The...
  • Re: Starting problem
    Historical mailing list - Dana Morphew
    Tue, 12 Dec 2000 10:38:10 -0800
    ...Having the correct oil viscosity helps it to > > crank faster. Block heaters work, but what do you do when your car has to > > sit...
  • Re: speaking of Mobil 1......
    Historical mailing list - Dennis Haynes
    Tue, 6 Mar 2007 06:42:34 -0500
    ...The label says something about higher viscosity formulae for those high mileage engines. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon...
  • Re: Disappearing Coolant - Head Lean?
    Historical mailing list - dave
    Tue, 14 Sep 2004 17:32:43 -0700
    ...Since synthetic have very long and strong polymer chain it is OK to run significantly lower viscosity when the spec calls for heavier petrolium...
  • Re: Flickering Oil Light 84 auto
    Historical mailing list - Dennis Haynes
    Wed, 12 Sep 2007 23:25:06 -0400
    ...What viscosity oil is being used? Should be 20w-50 or synthetic equal like 15w-50. What is the fill level? Top mark is...
  • Tranny oil-level (AA Trans take on the subject)
    Historical mailing list - Daryl Christensen
    Wed, 25 Jul 2001 22:51:08 -0700
    ...quality modern synthetic, the point is moot due to the thinner viscosity of modern oils...When VW was trying to "modify" the shifting it...
  • Re: Oil buzzer with 5W30
    Historical mailing list - Dennis Haynes
    Wed, 2 Nov 2005 21:19:46 -0500
    ...There should not be much viscosity difference at normal temps between 5w-30 or 10w-30 but we know better. Both are poor choices...
  • Re: Power Steering Fluid Protectant
    Historical mailing list - John Meeks
    Thu, 13 Dec 2007 20:29:24 -0500
    ...Fun Bus still has the original rack at 252k. >The synthetic ATF has the viscosity range to operate > well in colder weather. > > Dennis On...
  • =?UTF-8?Q?RE:_86.5_Westy_2.1_=E2=80=94_2_problems.?= =?UTF-8?Q?_No_High_Startup_Idle___=E2=80=94__Const?= =?UTF-8?Q?ant_ON_Oil_Light?=
    Historical mailing list - Dennis Haynes
    Tue, 10 May 2016 20:26:55 -0400
    ...As for what folks are telling you about oil do some reading, learn about viscosity. The Waterboxer needs higher viscosity oils than most any...
  • Re: Synthetic oil and winter storage
    Historical mailing list - Dennis Haynes
    Thu, 17 Oct 2013 17:25:52 -0400
    ...Particularly, they can function at much lower temperatures than there viscosity rating indicates. For example a normal 20w-50 become very heavy at temperatures...
  • Re: Secret tune-up / service item on 1.9 waterboxer engines.
    Historical mailing list - Rocket J Squirrel
    Fri, 29 Jul 2011 13:44:05 -0700
    ...54) and wondering what the right viscosity is for conditions where the nighttime lows are in the mid-40's (F) and the daytime...
  • Re: Ford's new silicone goo... interesting stuff for our Syncro!
    Historical mailing list - Andrew Grebneff
    Sat, 18 Oct 2003 22:17:33 +1300
    ...it. >It was a black silicone based pourable 'liquid' with the viscosity of motor >oil. When a magnetic field was applied to it, it...
  • Re: Draining/refilling oil of the Vanagons transaxle?
    Historical mailing list - GMac999
    Sun, 26 Aug 2007 18:57:37 -0700
    ...BTW, 90 weight _gear oil_ is about the same viscosity as 40 weight _engine_ oil. SAE J300 and J306 are the specifications. 90 gear...
  • Re: Oil pressure ?
    Historical mailing list - Dennis Haynes
    Sun, 23 Nov 2014 00:12:38 -0500
    ...Oil pressure ? 2 bar at 80 degrees centigrade at 2000 rpm with factory oil viscosity, which I believe is 30 weight, is the low...
  • Re: EXPERTISE NEEDED! oil pressure woes con't. part 4
    Historical mailing list - Helen Fahy
    Fri, 9 Feb 2001 19:54:13 -0500
    ...Raising the heat of the oil reduces the viscosity of the oil and pressure that the pump is able to generate. I am measuring...
  • Re: VC fluid - take a chance on this
    Historical mailing list - neil n
    Sat, 3 Apr 2010 12:02:16 -0700
    ...written by an > Audi/vw engineer) shows that the siloxane's viscosity does not increase with > temp. > > its a shear thickening fluid, the shear...
  • Re: Blue smoke at start-up
    Historical mailing list - Dennis Haynes
    Mon, 14 Jan 2002 21:06:51 -0500
    ...Also, what viscosity oil is being used? Too light will increase the consumption here. Excess oil will also destroy the Catalytic converter. Also, make...
  • Re: Valve Tapping Sound
    Historical mailing list - John Rodgers
    Wed, 29 May 2002 17:39:49 -0500
    ...The other problem is oil viscosity. One of the official weight oils listed for the engine is a 20W/50 wt oil. That is...
  • Re: STUPID QUESTION?
    Historical mailing list - Dennis Haynes
    Wed, 24 Aug 2005 20:44:46 -0400
    ...They actually call for 40 in tropical temps but the reality is the 20w-50 is a better choice now that the viscosity modifiers...
  • Re: Engine oil
    Historical mailing list - Dan N
    Sun, 7 Aug 2022 08:41:55 -0700
    ...Part of GM's > plan to improve fuel economy is the use of low viscosity lubricants. The > engine calls for 0w-20, the transmission...
  • Re: Flickering oil light on idle.
    Historical mailing list - Dennis Haynes
    Fri, 14 Aug 2015 23:50:08 -0400
    ...You might want to go to slightly higher viscosity, *-50. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf...
  • Re: Oil Pressure Sensor/Pump?
    Historical mailing list - Frank Condelli
    Thu, 10 Sep 2009 06:12:21 EDT
    ...Single weight oil holds its viscosity better than does multi-vis, too. If your vehicle is running hotter than it should, multi-vis oil...
  • Re: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - Dave Mcneely
    Wed, 13 Mar 2013 09:51:37 -0500
    ...Also you can’t compare the viscosity requirements of the water boxer to the Subaru engines. As for the factory recommendations with straight weight...
  • Re: vanagon Digest - 2 Jun 2020 to 3 Jun 2020 (#2020-193)
    Historical mailing list - don spence
    Thu, 4 Jun 2020 07:51:50 -0600
    ...oil viscosity... best 10W60 brand / option? > > After watching the "Project Farm" Oil test video... > It sure makes a great case for Pennzoil. > https://www...
  • Re: From flickering oil light to valves clacking
    Historical mailing list - Tyler Hardison
    Sun, 16 Aug 2015 21:24:54 -0700
    ...Tyler, >> >> MMO is a thin, light solvent--you just diluted the physical thickness >> (viscosity) of your thicker oil! How much did you add? >> >> Stuart >> >> >>
  • synthetic oil (switching teams)
    Historical mailing list - Jonathan Clay
    Sun, 7 Feb 1999 12:09:10 EST
    ...I have looked at the benefits of using sythetics (easier on start ups, adhears to moving parts, holds its viscosity at higher and colder...
  • Re: Loud lifter problem
    Historical mailing list - Joel Cort
    Fri, 19 Sep 2003 16:58:19 -0700
    ...I had the same problem with thicker viscosity oil. I changed to 20W50 and the lifter noise is currently gone. Joel 89 Syncro Westy...