> As to your temperature gauge statement, my experience with the sender
> types I described stands.
>

Indeed, I defer to your greater degree of experience. I probably should have
prefaced my remark with "in my limited experience with senders", which was
with only two VDO oil temp units. The variable readings I got from two
senders on the same gauge were with one of them being of unknown history and
dubious functionality-- dirty, discolored, tab broken off and a 18ga wire
soldered in its place. Undoubtedly my faulty readings were the result of
something other than the thermistor's resistance. If you say sensors are
reliable, I take it as true. Though I think I would add the caveat that even
something as simple as a thermistor based sensor can be buggered by a
determined idiot, even if all he can do is mess up the mechanical
connections.

Typical OEM gauges use far less accurate methods of displaying temperature.
>

We're definitely in agreement there, as anyone who's ever taken apart one of
those OEM gauges can attest.

The Speedhut gauges are serious units and I'll stand behind my inferred
> performance. Readout to the degree with modern gauges is limited only by the
> eye's interpolation performance.
>

Yeah, on those you'll definitely see more error just from the resulting
parallax of moving your head around than you'd see from sensor variance.

--
John Bange
'90 Vanagon - "Geldsauger"