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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 15+: 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 change frequency?
    Historical mailing list - David Maurio
    Tue, 22 Jul 2003 14:32:30 +0000
    ...It is > related to having the right viscosity oil and an oil filter which has > the correct internal relief valve spring pressure. > > To reduce...
  • Re: 2.1L WBX -oil pressure light flickers at idle
    Historical mailing list - Dennis Haynes
    Sun, 1 Mar 2015 09:47:13 -0500
    ...A health engine should not high viscosity oil except for extreme situations. As for you rebuilt engine, who rebuilt it? Very few rebuilders and...
  • Re: Rislone Ring Seal and Other Oil Pressure Thoughts
    Historical mailing list - Dennis Haynes
    Sun, 13 Oct 2002 09:05:44 -0400
    ...For those of you new to this odyssey, here is where I'm at: - using Castrol GTX 20w50 with this Rislone Ring Seal viscosity...
  • Re: Oil musings on a hot day....
    Historical mailing list - Ben McCafferty
    Mon, 1 Jul 2002 21:26:40 -0600
    ...live, but the thing to be careful with is > too high viscosity in the mornings. Here, where overnight temps > stay in the 85-100...
  • Re: Vanagon running rough
    Historical mailing list - Dennis Haynes
    Sun, 9 Jan 2005 18:17:40 -0500
    ...Started to search the net - the first thing I found was about Oil viscosity - too thin and the hydraulic tappets don't lift enough...
  • Re: Valve seat drop on 81 vanagon
    Historical mailing list - Daniel Schmitz
    Mon, 24 Jul 2000 10:50:47 -0700
    ...The light may come on momentarily when the engine is hot and idling, however, because hot oil is thinner in viscosity. But the '81...
  • Re: oil pressure -- next round
    Historical mailing list - Dennis Haynes
    Thu, 17 May 2007 10:24:37 -0400
    What viscosity oil are you using? This may have been mentioned but remind me. I doubt you have a blockage. The lenght of hose...
  • RE: [VANAGON] running hot....ideas ? U PDATE running a 70� t-sta...
    Historical mailing list - Dennis Haynes
    Sat, 25 Mar 2006 21:32:37 -0500
    ...Fuel dilution, water condensation to contaminate the oil along with increased oil viscosity will reduce efficiency. In the chemical world, 10C is a huge...
  • Re: Oil Pressure Test Results
    Historical mailing list - Dennis Haynes
    Tue, 7 Apr 1998 20:19:21 -0400
    Those oil pressure reading s are about normal, but you need to consider viscosity. What weight are you using? Also, although you waited for...
  • Re: Radiator has a leak and green fluid's coming out
    Historical mailing list - Dennis Haynes
    Sun, 4 Apr 2010 12:07:27 -0400
    ...As for the propylene glycol, yes it works but there are some drawbacks such as viscosity so I still stick with the Ethylene glycol...
  • Re: Just interesting observation & More Questions
    Historical mailing list - Matthew C. Huntley
    Fri, 17 Dec 2004 10:41:53 -0800
    ...Just interesting observation > > >>I am curious, >> Why does that combination of Oil/Filter fix this? >> I understand the viscosity of the oil, but what...
  • Re: Mobil 1 winter oil alternative and sale
    Historical mailing list - OlRivrRat
    Thu, 15 Feb 2024 22:30:20 -0700
    ...With the lower cold viscosity the oil pressure when cold drops sooner than with the 15w and the engine just seems to crank and...
  • Re: 1981 Questions
    Historical mailing list - G. Matthew Bulley
    Thu, 14 Feb 2002 22:47:59 -0500
    ...If you intend to rebuild it soon, I'm not opposed to using "motor honey" to thicken the viscosity enough to bring the compression...
  • Re: Thoughts on running Mobil-1 Synthetic oil
    Historical mailing list - Dennis Haynes
    Wed, 3 Oct 2007 17:39:02 -0400
    ...I noticed that >Rotella was a bit thicker than Mobil 1 despite same viscosity. I now >notice that my engine is a little louder...
  • Re: Toilet paper filter is better
    Historical mailing list - Chris Stann
    Tue, 20 Jun 2000 07:55:58 -0500
    ...That's why you would want to run a synthetic oil of 15-W40 viscosity. Synthetic does not break down and has a more...
  • Re: From flickering oil light to valves clacking
    Historical mailing list - SDF ( aka ;jim lahey' - Scott )
    Mon, 17 Aug 2015 11:59:05 -1000
    ...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: Oil pressure light and buzzer
    Historical mailing list - Scott
    Mon, 23 May 2016 09:45:20 -1000
    ...Over filling will cause the oil to overheat and lose > viscosity. Adding a real oil cooling system can also be helpful. > > Dennis > > -----Original Message...
  • Re: Expected Life of a Cat Converter??
    Historical mailing list - Dennis Haynes
    Sat, 15 Jan 2011 21:42:44 -0500
    ...Excess oil level, wrong viscosity, worn valve guides/rings excessive high revs and engine braking all lead to some oil passing through to the...
  • Re: New diesel from VW
    Historical mailing list - Dave Mcneely
    Tue, 18 Nov 2014 12:00:43 -0600
    ...That's one of the reasons for the lower viscosity synthetic oil. > > That being said, unless it's one of the newer diesel trucks...
  • Frequency of Oil Changes
    Historical mailing list - Lee F. Schelin
    Thu, 8 Jul 1999 11:40:36 -0700
    ...Then in the mid 60's they brought out the "New" Improved RPM Multi-viscosity oil and they promoted it as 5,000 mile...
  • Re: Oil pressure light comes on after about 7 minutes.
    Historical mailing list - Roland
    Sun, 12 Dec 2010 09:32:17 -0800
    ...Easy check! If your switch is white it is the wrong one. >> Oil viscosity-level. Well you say 20w-50, that is fine. Did...
  • Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters
    Historical mailing list - Chris S.
    Sun, 2 Mar 2014 07:30:09 -0500
    ...it is possible to get the oil so hot that the > viscosity drops to the point that you will get the buzzer and there...
  • Re: Just interesting observation
    Historical mailing list - Dennis Haynes
    Fri, 17 Dec 2004 19:54:31 -0500
    ...Just interesting observation I am curious, Why does that combination of Oil/Filter fix this? I understand the viscosity of the oil, but what...
  • Re: Loud Tapping Sound
    Historical mailing list - Coby Smolens
    Sat, 5 Jun 1999 00:34:09 -0700
    ...Increasing the viscosity of engine oil simply works, I feel, especially for boxer engine lifter syndrome. I think the steel lifter running sideways in...
  • Re: Thoughts on running Mobil-1 Synthetic oil
    Historical mailing list - Bob Donalds
    Wed, 3 Oct 2007 23:02:43 -0700
    ...Oil was still clean and within viscosity specs > but > high temperatures where causing the Mobil to breakdown. The Fox on the > other > hand makes...
  • Re: Oil pressure ?
    Historical mailing list - Chris S.
    Sun, 23 Nov 2014 09:56:21 -0500
    ...at 6:42 PM, Dennis Haynes <d23haynes57@hotmail.com> >>> wrote: >>> >>> What viscosity oil are you using? 22 psi at 3,600 RPM is low...
  • Re: Oil Pressure observation.
    Historical mailing list - Dennis Haynes
    Sun, 31 Jul 2011 13:42:51 -0400
    ...Still, the real unique need for the Waterboxer is viscosity and that alone makes a 20w-50 even a better choice than 15w-40...
  • Re: 91 Vanagon Manual - slow cranking....
    Historical mailing list - Greg Potts
    Fri, 3 Dec 2010 10:41:22 -0500
    ...I am ruling out oil viscosity problems as its been about 7 degrees C all week here in lotus land Vancouver BC. > > I can...
  • Re: coolant system trivia
    Historical mailing list - gary hradek
    Tue, 27 Apr 2004 08:51:01 -0700
    ...is 89 deg ant > the other is 82 deg C) > > The viscosity is higher with the antifreeze which > explains it lower flow > rate but...
  • Re: Silicon oil in Syncros viscous coupling
    Historical mailing list - Peter Larsson
    Sat, 14 Dec 1996 19:50:57 +0100
    ...Its graded from 100 to 10000 in viscosity. It comes in so small bottles that filling a coupling to a syncro... well,I think...
  • Re: Vanagon running rough
    Historical mailing list - two.tone.tool.box
    Sun, 9 Jan 2005 20:35:47 -0800
    ...search the net - the first thing I found was about Oil > viscosity - too thin and the hydraulic tappets don't lift enough - I had...
  • Re: warm up time - a contrarian's view! (longish)
    Historical mailing list - YauMan Chan
    Fri, 1 Jan 1999 13:01:57 -0800
    ...any of his analysis of engine warm-up thermodynamics or oil viscosity hydrodynamics. Those concepts are all scientifically sound and correct. However, I question...
  • Re: Ethanol Free Gas.. No fuel pump buzzing?
    Historical mailing list - Tyler Hardison
    Fri, 26 Feb 2016 12:35:07 -0800
    ...and research octane numbers of the > E10, and the slightly lower viscosity, which may cause certain fuel > injection systems to inject more E10 per...
  • Re: what causes low oil pressure
    Historical mailing list - Jeff
    Sat, 10 Jan 2004 19:17:32 -0700
    ...As others have noted, as the oil heats up, the viscosity drops resulting in lower pressure, 1/2 "full" is supposed to help reduce...
  • '73 Safare Update - Synthetics and shifting
    Historical mailing list - David Schwarze
    Sun, 30 Apr 1995 00:56:12 -0700 (PDT)
    ...The only reason I went for synthetic was because I thought it would hold its viscosity better, but so far it doesn't look...
  • Re: New diesel from VW
    Historical mailing list - John Rodgers
    Tue, 18 Nov 2014 18:50:55 -0600
    ...That's one of the reasons for the > lower viscosity synthetic oil. > > That being said, unless it's one of the newer diesel trucks...
  • Re: 20W50 Castorl Engine Oil
    Historical mailing list - Brenton Tait
    Thu, 6 Aug 2009 19:25:05 +0200
    ...Also, engine oil will be too thin when hot and the viscosity won't be there to protect the transmission parts. Your mechanic may...
  • Re: Oil Light
    Historical mailing list - Jeff Lincoln
    Tue, 8 Aug 2006 12:09:35 -0400
    ...I've even seen the oil pressure warning board > removed to silence things. > > What viscosity oil are you using? 20w-50 or something close...
  • Re: Zero valve settings
    Historical mailing list - Dennis Haynes
    Mon, 6 Apr 2015 23:09:57 -0400
    ...As the engine warms up oil pressure will be limited by the pump capacity and oil viscosity. Excessive oil pressure can be bad for...
  • Re: Rislone Ring Seal and Other Oil Pressure Thoughts
    Historical mailing list - G.M.Bulley
    Sat, 12 Oct 2002 13:03:06 -0400
    ...For those of you new to this odyssey, here is where I'm at: - using Castrol GTX 20w50 with this Rislone Ring Seal viscosity...
  • Re: Oil light flickering
    Historical mailing list - Scott Daniel - Turbovans
    Wed, 9 Feb 2011 15:15:16 -0800
    ...Not too much a function of oil viscosity I don't think. Sometimes they do it for years and there's no harm or...
  • Re: Not passing smog, still... Need help!
    Historical mailing list - Steven Dodson
    Wed, 21 Aug 2002 09:19:01 -0700
    ...Also make sure that the oil is fairly clean, correct >viscosity, and not over-filled. Hope this helps. > >Dennis > _________________________________________________________________ Send and receive Hotmail on...
  • Re: Preemptive water pump replacement? Miscellaneous Chatter
    Historical mailing list - Dennis Haynes
    Fri, 24 Feb 2012 11:24:34 -0500
    The 20w-50 is the preferred oil viscosity for most climates. It is good down to about 20F as long as you are somewhat...
  • Re: Sticky brakes
    Historical mailing list - Dennis Haynes
    Wed, 29 Jun 2016 22:42:01 -0400
    ...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: Oil Pump Replacement.
    Historical mailing list - Dennis Haynes
    Fri, 6 Nov 2015 19:49:52 -0500
    ...When the engine gets hot not only does the oil pressure go down due the lower viscosity but the case expands and the main...
  • Re: Oil pressure ?
    Historical mailing list - Chris S.
    Sun, 23 Nov 2014 12:23:55 -0500
    ...at 6:42 PM, Dennis Haynes <d23haynes57@hotmail.com> >>>> wrote: >>>> >>>> What viscosity oil are you using? 22 psi at 3,600 RPM is low...
  • Re: seam rust
    Historical mailing list - Roy Nicholl
    Sun, 14 Sep 2014 14:01:24 -0300
    ...You do your best from the outside, a low viscosity rust converter does wick in the gap, but I really doubt you covert all...
  • Re: Synthetic oils in the vanagon
    Historical mailing list - tmiller
    Tue, 1 Jun 2004 18:45:00 -0400
    ...They finally told me to change the oil at 40,000 miles due to the viscosity approaching 15W-50 from soot buildup and winter...
  • Re: '87 Westy - Oil Change, out of hibernation
    Historical mailing list - Dennis Haynes
    Fri, 15 Mar 2013 14:05:05 -0400
    ...Over size oil pumps, high viscosity oils, or high revving a cold engine can overcome the relief valve capacity and then pressure can climb...
  • Re: Just interesting observation & More Questions
    Historical mailing list - John Rodgers
    Fri, 17 Dec 2004 15:33:03 -0600
    ...Just interesting observation >> >> >> >> >>>I am curious, >>>Why does that combination of Oil/Filter fix this? >>>I understand the viscosity of the oil, but what...
  • Re: Thoughts on running Mobil-1 Synthetic oil
    Historical mailing list - Dennis Haynes
    Thu, 4 Oct 2007 22:59:38 -0400
    ...I upped the viscosity by using a 20W-50 (or something close to that). Again, a major name brand dino oil. The light stopped...
  • Re: any guesses on oil light woes
    Historical mailing list - Stuart MacMillan
    Mon, 22 Jan 2001 12:54:25 -0800
    ...I'd go to the 40w single viscosity, it is physically thicker than a 20w-50 and will give higher oil pressure. > > Thanks for...
  • Re: Mobil I ... negative..(from digest)
    Historical mailing list - mike
    Thu, 4 Oct 2007 12:43:44 -0700
    ...I mean did >> a bearing actually seize up because the correct viscosity, under proper >> pressure and at proper temperatures oil actually failed to provide...
  • Re: winter weight oil
    Historical mailing list - David McNeely
    Thu, 16 Apr 2020 07:34:47 -0700
    ...The 5w refers to the oil viscosity at 40C, (104F). The upper > number refers to the viscosity at 100C, (212F). With the stock system...
  • Re: Rear heater control
    Historical mailing list - Dave Mcneely
    Mon, 19 Nov 2012 09:09:59 -0600
    ...When a solution like coolant, which has a higher viscosity than does water, and may also contain some materials leached or eroded from various...
  • Re: Spooked!
    Historical mailing list - Dennis Haynes
    Sat, 4 Jun 2011 11:30:09 -0400
    ...What to do next? Oil viscosity and level. What are you using and are you sure it is not overfilled. Switch itself. Is it...
  • Re: Engine flush,
    Historical mailing list - Zoltan Kuthy
    Tue, 25 Apr 2000 13:15:18 -0700
    ...oil stays new and you only have to add oil ever. Viscosity will not change if there is no dirt in the oil. But...
  • Re: Just interesting observation & More Questions
    Historical mailing list - Anonymous Digest
    Sat, 18 Dec 2004 00:16:36 -0700
    ...had it for a long time, and no oil filter or viscosity of oil has ever made a difference. I kind of left out...
  • Re: Oil pressure light and buzzer
    Historical mailing list - Gabriel Hourtouat
    Thu, 31 Aug 2017 13:04:18 -0400
    ...Can't find any loose > wires? What if it was cheap oil that lost viscosity too soon? Maybe an > oil change? > > > > Get a basic...
  • Re: Oil temp. ? and OP ?
    Historical mailing list - Jonathan Berg
    Tue, 5 Oct 2010 10:59:30 -0400
    ...front of the head, indicates that my oil is losing > significant viscosity at the motor gets hot...I have about 85psi on start up...