Only if your clocks have an oil pressure gauge which usually only appears on 6 dial clocks (GL/SRMk1/GTE/GSi) Mk2 Sr and Sri along with a few others (td/Antibes etc) have a rev counter but the oil pressure is just a large light in the space where the gauge is in 6 dial clocks. The oil pressure gauges need the two pin sender mentioned above to operate.
I have mk1 clocks with a real guage (not a light) for oil pressure.
I guess I'll need one of these then.
Thanks for that. I've been unsure of what to do with the oil guage and that sorts it. Cheers