Oil pressure gauge

[Wizard]

Go to you local junkyard and see if they have some older model Audi's or VW's (86-90 models).
Most of these had VDO gauges in them that would read Oil Pressure, Oil Temp and Volts. YOU MUST GET THE SENDING UNITS ALSO. Here is an example (although pisspoor one) of what I mean:
http://cgi.ebay.com/ebaymotors/VW-MK1-Cabriolet-3-VDO-Gauges-Oil-Press-Temp-Volts_W0QQitemZ300190501565QQcmdZViewItem?hash=item300190501565

These gauges look perfect in an E30

[BrandC]

FWIW, this is what I have:



Unfortunately, the place I got it from, http://www.gaugeman.com, seems to have gone out of business.  

AK96ss: Does this adapter allow you to read both oil temp. AND pressure?

[rob_e30]

That adapter allows you to keep the stock switch and add one additional sender (pressure or temp).  I have the same and use it for pressure.

[BrandC]

That adapter allows you to keep the stock switch and add one additional sender (pressure or temp).  I have the same and use it for pressure.

Where'd you get the adapter from?

[rob_e30]

Same guy that appears to be out of business.  It's pretty simple... a brass block with two female threaded fittings (one for each sending unit) and a banjo bolt to attach it to the oil filter housing.  It's a bit hard to see in the photo, but it's shaped almost like an arrow head with the tip flattend, or perhaps a trapazoid.

[1991 E30 M42]

pics