Date: Fri, 29 Jul 2011 14:30:43 -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: Secret tune-up / service item on 1.9 waterboxer engines.
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the upper oil pressure when cold is controlled by the oil pressure relief
valve, in the engine block, near the oil pump ( on a waterboxer )
it should never get above about 80psi or so ..
even if it's freezing outside, and the engine is stone cold and you take it
to 3,000 rpm .
which would produce ....really ....could produce 300 psi ..
if the oil pressure relieve valve did not regulate upper psi cold.
if you do seem some super high number, cold, like 100psi the oil pressure
relief vavle may not be working.
I don't understand using a 5W40 at all myself
15W40 yes...that is my standard weight generally speaking. On most engines.
I'm running a used 1.9wbxr now ..
it can have near zero OP at hot idle..
and it can be as low as 20psi at a hot cruise of 55 mph .
I have 20W50 with 'motor honey' added in that engine for local very hot
summer use .
Random Fruition,
Scott
www.turbovans.com
----- Original Message -----
From: "Rocket J Squirrel" <camping.elliott@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, July 29, 2011 2:00 PM
Subject: Re: Secret tune-up / service item on 1.9 waterboxer engines.
> Thanks, Michael. I had the feeling that this point -- today's oils be mo
> bettah that those of days of yore -- pretty much covers the matter. I do
> use Mobil 15W-50, like many here.
>
> I suppose that now that I are the proud new owner of an oil pressure
> gauge, I can use it to determine whether the oil is doing its work.
> That's kinda-sorta the bottom line, isn't it? That the oil pressure be
> not too high when things are cold, and not too low when it's bakey
> outside?
>
> --
> RJS
>
> On 07/29/2011 01:56 PM, Michael Snow wrote:
>> On 7/29/11 4:44 PM, Rocket J Squirrel wrote:
>>> recommended oils
>>> chart in his 1984's owner's manual ("Lubricants," p. 54) and wondering
>>> what the right viscosity is for conditions where the nighttime lows are
>>> in the mid-40's (F) and the daytime highs are in the mid-90's.
>>
>> I think it is important to understand that the engine oils available
>> when the 1984 owner's manual was printed are very different from those
>> available today. On the premise that 5 Vanagons constitute a "fleet," I
>> have standardized on Shell Rotella T6 5W-40, available at my local Wally
>> World, for fleet use in my diesel, TiiCo, and waterboxers. If I had only
>> a single waterboxer, which seems to be the most common predicament, I
>> would use Mobil1 15W-50.
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