Date: Thu, 14 Mar 2013 01:18:54 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Fwd: '87 Westy - Oil Change, out of hibernation
In-Reply-To: <20130314020402.8U114.598485.imail@eastrmwml304>
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I'll have to study that ..
if straight weight oils, such as a 40 weight or a 50 weight maintain
their viscosity better at high temps than mufti-weight oils.
Still ..the idea of firing up an engine on a cool morning with 50W so
you can be in good shape for 115 F ...
just doesn't sound right.
To really know what is going on with the oil ..
besides having oil pressure and temp gauges,
one should do an oil analysis now and then ..say ever 15K or once a year.
Then 'you got something' that is useful, oil and engine life wise.
scott
On 3/13/2013 7:04 PM, Dave Mcneely wrote:
> Scott, in coastal Oregon it is unlikely to ever be 115 F. I have run my 2.1 with 170K miles for hours at temperatures approaching that, at highway speed. I think VW meant the single weight recommendation, and what multi-grade has the capacity to maintain viscosity with that condition?
>
> mcneely
> ---- Scott Daniel - Turbovans <scottdaniel@turbovans.com> wrote:
>> Well, obviously waterboxer engines with not that many miles on them are
>> not highmilage wbxr engines.
>> There are a lot of those around.
>> Possibly dozens sold across the country every day.
>>
>> I think the bottom line is ..
>> if it's a milesengine,or temps are high, 20W50 or 15W50.
>>
>> Straight weight oils are rarely used these days. VW wrote that over 20
>> yrs ago in the owners manual.
>> Engine oils have come a long way since then.
>>
>> Indiesels I'll use a 15W40 ..
>> I might use that weight in a high miles wbxr engine in cooler temps.
>>
>> IMO how the oil is, and what the oil pressure is fully warmed up and
>> high ambient temps is more important than how thin and well-flowing the
>> oil is when cold.
>> Though that runs counter to what many people recommend or believe.
>>
>> The higher the miles are, the more worn and loose the engine is, the
>> less it matters to have a low first number multi-weight oil ..down to
>> reasaonbly cold temps ..say 20's at the lowest.
>> Like a 10W40 is plenty thin enough cold at temps not too serverely cold
>> , and 150K miles on the engine say.
>>
>> with summer coming ..
>> if a wbxr engine has say 100K plus miles, 15W50 and 20W50 are fine.
>>
>> depends on the engine or who and how they built it too, it the case of
>> oil choice.
>> Ona 2.2 new wbxr from Chris Corken ...he was pretty adamant about 10W40
>> for a break-in oil...
>> worked out just fine.
>> On another 2.1 rebult from AVP shortly after that, I put 10W40 in ..
>> that engine didn't like it. I could see flickering oil light fully
>> warmed up.
>> I check with AVP and they say ..
>> either 30W or 20W50 ...that's what we use in our VW engines, so out the
>> 10W40 went.
>> That engine's been running on 20W50 since new for 2 yrs now. Seems just
>> fine.
>>
>> the higher the miles on a wbx engine..
>> the more usefulit is have an oil pressure gauge too.
>>
>> sdf
>>
>>
>> On 3/13/2013 3:40 PM, Dave Mcneely wrote:
>>> ---- OlRivrRat <OlRivrRat@COMCAST.NET> wrote:
>>>>> Dennis Haynes wrote:
>>>>>> The *w-50 gives that viscosity edge the water boxer needs.
>>> OleRiverRat wrote:
>>>
>>>>> I guess if you are talking about a really high milage H2OBxr that
>>>>> has not been well maintained that is probably true ~ otherwise I
>>>>> have not seen any info that would cause me to lean toward that
>>>>> philosophy.
>>>>>
>>>>> ORR ~ Dean
>>> How about the VW Vanagon factory owner's manual? That is the viscosity recommended there for all except extreme temperatures on either end. At the high end it recommends straight 40 weight, at the low end a lighter oil, I do not remember specifically, but maybe 10 or 20 weight.
>>>
>>> What waterboxer engines are not high mileage? After all, the newest one around is 22 years old.
>>> David McNeely
>>>
> --
> David McNeely
>
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