I would HighlyRecommend using a FullSynth' ~ They are FarMoreCapable of dealing

with the Big Temp'Ranges of the H2OBxr than a Conventional is ~

        No need to spend the Big$s, though, on RedLine or RoyalPurple or Ams as there are

several Good Reasonably Priced FullSynth's out there ~

                                                        ORR ~ DeanB

On 25 Sep , 2015, at 6:31 PM, Dave Mcneely wrote:

> Of course, hot is a variable temperature.  I guess that's why people put in oil temperature gauges.  If pushed, at high ambient temperatures, no supplemental oil cooler, probably most of these beasts would fall below 8 psi at idle.  But with a supplemental oil cooler, keeping the oil temperature closer to a reasonable value, the pressure stays above that value.
> 
> I may throw in synthetic 20W-50, though for right now, I don't seem to have a problem, given the external cooler and conventional 20W-50.  But I did, before the cooler.  mcneely
> 
> ---- Stuart MacMillan <stuartmacm@GMAIL.COM> wrote:
>> Try Red Line 20w-50 synthetic oil.  It gives me a 1-2 psi boost at all rpm
>> over 15w 50 because it is physically thicker.  I'd love to see 30 @ 4000,
>> I'm closer to 25 when hot.
>> 
>> It's the idle pressure that really tells you what's going on with the
>> bearings.  Below 8 when hot means it's time to plan for a rebuild or
>> conversion.
>> 
>> Stuart
>> 
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
>> Robert Clemmer
>> Sent: Friday, September 25, 2015 1:17 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Oil Temperature??
>> 
>> I have a 91 2.1 WBX that just turned 300K miles on this past trip to FL.
>> The oil pressure is fine until the oil temperatures start to go on the north
>> side of 220 then it starts dropping proportionately with oil temperature.
>> Oil temperature starts climbing proportionately with outside air temperature
>> when the temperatures are above 85.  When it is 95 or higher outside my oil
>> temps can go 240-250 and pressure will drop to 30 psi at 4000 rpm.
>> 
>> 
>> 
>> Those of you have that have installed external oil coolers, how effective
>> have they been?  What kind of temperature drop can I reasonably expect if I
>> decide to install an external cooler when I pull this engine to "freshen it
>> up"?
>> 
>> 
>> 
>> Thanks for your comments, BobC
> 
> --
> David McNeely