no it aint the same as oil temp. and a sandwich plate wouldnt help. where the OEM oil pressure sender is located on the block is quite near the bottom of the block, just above where the block curves out at the base, this makes fitting anything of a larger diameter impossible because it simply gets stuck up against the block. u could have a braided line thats threaded at each end made up (i did and it was rather expensive, but the threads were machined ever so slightly off and it didnt screw into the block) if u know anyone who can do that, one end goes into the OEM oil pressure sender hole in the block, onto the other u screw the new (and in the case of auto gauges, BIGGER) sender. i went through ALOT of hassle to get mine done and it ended up costin me a fortune in labour, i have been there and tried it! and the guy who did it is a rally specialist, he knows wot he's doin! i know wot im talkin about here folks. Phil.