Dave:  You can install a bypass line with a thermostat that will send
oil at a predetermined temp and shut down when things get too
cool.  I bought an AMOT valve years ago, but I'm sure Summit Racing
or someone similar will have something similar.  The Amot had
interchangeable innards that would let you dial in the opening temp
as well as the full flow temp.  VERY cool.

DM&FS

At 10:13 AM 9/15/2010, Dave Mcneely wrote:
>on my "91 Volkswagen Vanagon GL Campmobile 2.1 waterboxer.
>
>It occurred to me that if the oil cooler works well, the oil might
>run too cool when ambient temperatures are relatively low.  Is it
>possible (and practical, reasonable) to install a valve in the feed
>line for the cooler (and maybe another in the return line) that
>could be opened and closed depending on need?  I realize that this
>would create an additional complication -- that it would be another
>point for possible failure.  Or am I just trying to over engineer
>something?  Anyone with experience with an auxiliary oil cooler
>might know if I am trying to solve a problem that doesn't
>exist.  Maybe the oil would have no problem running hot enough, even
>with the extra cooling capacity.
>Thanks, DMc
>--
>David McNeely