Date: Sun, 24 Mar 2013 10:24:31 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: '87 Westy - Oil Change, out of hibernation
In-Reply-To: <514E731B.4050402@gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Somewhere around -40 Gasoline won’t vaporize to burn so I guess keeping
engines running or assisted with heating devices is a necessity. These temps
are where true synthetics can really strut their stuff. Even with our Long
island mild winters the startup and warm up performance of the 0w-40
compared to 15w-50 Mobil 1 is noticeable. I would probably go with the
0w-30 or 0w-20 synthetic in those conditions.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
JRodgers
Sent: Saturday, March 23, 2013 11:30 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: '87 Westy - Oil Change, out of hibernation
All this oil talk got me to wondering what one would run at the opposite
extremes - like in REALLY cold! I can remember back in 1971 when I was in
Fairbanks it got cold as blazes. I don't remember the temperature in town
then - but north of town at a Prospect Creek along where the Alaska Pipeline
is, the temp on January 23 went to minus 80F - coldest ever recorded in the
US. Twice below the temperature at which kerosene freezes. In Feb of 1947 in
Snag, Yukon - it went to minus 81.4F - the coldest temp ever recorded in
North America - but I wasn't there then - but I sure was for the Prospect
Creek event. Try starting a cold engine on a day like that. Cars were left
running for days in many cases. Of course many had block heaters too, and
battery hot plates but it's tough on engines at those temps. Anbd tires keep
their flat spots all day.
Thermostats never open. But oil being oil - I guess it had to get warm
enough to lube - no matter what. But I still wonder what grade oils would be
best used.
John
On 3/15/2013 4:08 PM, OlRivrRat wrote:
> McNeely
>
> It appears to me that you & I (& I suspect lots of
> others(either
> direction)) may be interpreting the OwnersManual OilGradeChart
> differently ~ since the 20w-50, 20w-40, 15w-50, 15w-40 RangeBars have
> an ArrowTop on them I assume that means GreaterThan ~ I think that if
> they didn't want to recommend the use those grades above 90ºf they
> would have capped them Flat as they have done with the 10w-40, 10w-30
RangeBar.
> Also we should keep in mind that these specs are at least 30YrsOld ~
> they may have been developed (more or less) from a CYA perspective ~ &
> a number of improvements have been made in the EngineLube
> Grading&Quality TestSpecs since then.
> When I look @ this chart it says to me if 15w-40 is OK to use
> off the UpperEnd of the Temps then a 10w or 5w or 0w-40 should also be
> OK to use in that same setting ~ Since theoretically a 40 "ShouldBe" a
> 40 no matter what the **w # is.
> You asked the ? "What do folks in Arizona do for running in
> summer?" & all I can say is that if I lived in AZ instead of NM I
> would probably try to get away with using a 5w-40 until my OilTemp&Press'
> Gauges told me to move up to 5w-50 & most definitely a FullSynthetic.
> I did live in AZ for 2.5Yrs back in the '60s as a USAF WeatherGuy ~ I
> recall many SummerDays with temps in the Mid120s ~ IIRC 128ºF was the
> highest ~ I drove a 51ChevyConvertable & then a
> 63.5FordFalconSprintConvertable in those days probably running SAE40)
>
>
> ORR ~ DeanB
>
> On 15 Mar , 2013, at 12:57 PM, Dave Mcneely wrote:
>
>> ---- Dennis Haynes <d23haynes57@hotmail.com> wrote:
>>> Again, at 100C the 20w-50 should have higher viscosity than straight
>>> 40. Outside temperature has minimal effect on oil temperature unless
>>> the radiator is saturated or the effects of running the air
>>> conditioning or higher speeds for longer times takes over.
>>
>> Dennis, why did VW recommend the straight 40W for the highest
>> temperature range, rather than the 20W50, which was recommended for
>> slightly lower ambient temperatures? This is per my owner's book.
>>
>> mcneely
>>
>>>
>>> Dennis
>>>
>>> -----Original Message-----
>>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
>>> Behalf Of Dave Mcneely
>>> Sent: Thursday, March 14, 2013 5:51 PM
>>> To: vanagon@GERRY.VANAGON.COM
>>> Subject: Re: '87 Westy - Oil Change, out of hibernation
>>>
>>> OlRivrRat, thanks for the information. I do switch to the 40W for
>>> the hottest three months, and those are the months when I push the
>>> camper the hardest, also. I am following VW Vanagon owner's book
>>> recommendation. Forty weight for temperatures running at the high
>>> end of the nineties, 20W50 for lower than that. 20W50 does great in
>>> winter around here, and in spring and fall, also does well in
>>> northern states in summer. It is just too damned hot here and in
>>> the SW and interior areas of the west.
>>>
>>> What do folks in Arizona do for running in summer? mcneely
>>>
>>> ---- OlRivrRat <OlRivrRat@COMCAST.NET> wrote:
>>>> Ooops ~ sorry about that McNeely ~ your email asking about
>>>> HighOP is immediately below Don Hansons email in which he says
>>>>
>>>> "After hard use on a hot day, my idle OP sits at about 25psi
>>>> with the
>>>> 15-40w oil. When I use 10-40 or 10-30, I see about 10psi lower at
>>>> speed
>>>> and a few psi lower at idle when hot."
>>>>
>>>> & that is what I was attempting to respond to but clicked on your
>>>> email by mistake & did not notice.
>>>>
>>>> I don't know the answer to your HighOP? ~ just off hand I'd
>>>> say your OP#s look quite acceptable overall ~ I would start getting
>>>> concerned if they dropped much below what you are getting now. Not
>>>> sure, though, why you choose to change to thinner oil (40w) for the
>>>> hot months (if those are the 3mo's you are referring to), if the
>>>> 20w-50 works OK for you in the Winter it should work just fine
>>>> YearRound. You really ought to consider giving a Synthetic a try
>>>> (at least for those hot 3mo's), I suspect you may be pleasantly
>>>> surprised by the results ~ Walmart has Valvoline or Mobil1(not
>>>> recommending just
>>>> informing) 5qtBottles for around $25 & usually many other good
>>>> brands as well. Good Synthetics don't have to be expensive anymore.
>>>>
>>>>
>>>> ORR ~ DeanB
>>>>
>>>>
>>>>
>>>>
>>>> On 14 Mar , 2013, at 11:18 AM, <mcneely4@cox.net>
>>>> <mcneely4@cox.net>
>>>> wrote:
>>>>
>>>>> Well, the question was, "What is too much oil pressure in a
>>>>> waterboxer?" So, I repeat the question: What is too much oil
>>>>> pressure in a waterboxer? Is it 65 psi, 70 psi?
>>>>>
>>>>> On startup, cold, 20W50 Castrol (I hate the company, but use the
>>>>> oil because I can't seem to find a better, and will not pay for
>>>>> synthetic for an engine that is supposed to run on non-synthetic
>>>>> oil), the OP on my 1991 Volkswagen Vanagon GL Campmobile with 2.1
>>>>> with 170K miles runs at 60-70 psi depending on how cold it is. At
>>>>> home I garage it, and ambient temperature is usually around 50 F
>>>>> in winter. But then I park it outside when away from the house.
>>>>> But it has never pegged the 0-80 psi gauge. The pressure usually
>>>>> drops to 40 psi quickly as the engine warms up and holds around there.
>>>>> Summer is another matter, it usually drops to around 30 psi but
>>>>> will go lower on on long runs under hot conditions. I switch to
>>>>> 40W for about 3 months.
>>>>>
>>>>> So far as low OP, I don't see a problem there, except at idle it
>>>>> may drop to 10 psi or a tad lower after long hot runs.
>>>>>
>>>>> How much OP is too high??
>>>>>
>>>>> mcneely
>>>>>
>>>>> ---- OlRivrRat <OlRivrRat@COMCAST.NET> wrote:
>>>>>> If I saw a 10PSI drop or even a 5PSI drop in HotOP from
>>>>>> 15w-40 to
>>>>>> 10w-40 or even 0w-40 I would Kiss that OilManufacture Goodby in a
>>>>>> HeartBeat.
>>>>>>
>>>>>>
>>>>>> ORR ~ DeanB
>>>>>>
>>>>>> On 14 Mar , 2013, at 8:52 AM, Don Hanson wrote:
>>>>>>
>>>>>>> So, what is "too much" oil pressure in a waterboxer? mcneely
>>>>>>>
>>>>>>>
>>>>>>> And, what is too much oil pressure in an inline VW motor? (ABA
>>>>>>> Jetta 2.0
>>>>>>> liter)
>>>>>>>
>>>>>>> Mine, using 15-40 starts up cold with (3000rpm) 75-80psi, then
>>>>>>> when up to normal oil temp (~200f) the pressure settles at
>>>>>>> around 60-65psi (again, given a 3000rpm engine speed) I've
>>>>>>> wondered about the seemingly pretty high cold oil and engine oil
>>>>>>> pressure...
>>>>>>>
>>>>>>> After hard use on a hot day, my idle OP sits at about 25psi with
>>>>>>> the
>>>>>>> 15-40w oil. When I use 10-40 or 10-30, I see about 10psi lower at
>>>>>>> speed
>>>>>>> and a few psi lower at idle when hot.
>>>>>
>>>>> --
>>>>> David McNeely
>>>>
>>>
>>> --
>>> David McNeely
>>>
>>
>> --
>> David McNeely
>
| 
