Newps wrote:

I had the EI US8A engine monitor in my 182 and used one of the unused
channels as the OAT, got rid of the juice can OAT. Check the TCDS,
there may be no requirements for an OAT to begin with.

Certainly true. As one aviation sage (that I think we both know) is fond
of saying: "It depends!"

--
Frank Stutzman
Bonanza N494B "Hula Girl"
Boise, ID