Date: Fri, 15 Mar 2013 15:08:57 -0600
Reply-To: OlRivrRat <OlRivrRat@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: OlRivrRat <OlRivrRat@COMCAST.NET>
Subject: Re: '87 Westy - Oil Change, out of hibernation
In-Reply-To: <20130315185720.A924H.616987.imail@eastrmwml113>
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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