The Z4M is oil temp as well.
Very slow moving.
Z4M also have LED warm up indicators on the tach.
IIRC they're base on an algorithm of outside air, water & oil temp.
Alpinweiss '07 M Coupe •Eisenmann Sport-Ceramic Black•Fabspeed Headers•VRS Hyper-Narrow rear wing•Autosolutions SSK•APR splitter•Tekarbon headlights•StrongStrut STB•KW Clubsport•H&R ARBs c/w Turner Adj Links•Poly FCAB/RTAB•Volk Racing G2•Direzza ZII•Stoptech BBK•Vibra-Tech mtr mounts•