2 cents -

Car one - 180 thermo runs O -R antifreeze @ -40 with recall fan sensor
Car two - 195 thermo runs A - L af @ -45 all stock

Conclusion: I will install a 180 f into car two, because of the above observed conditions.

2012 Lotus Evora --------- 95 Mystique MTX - GONE 395,000 Kms --------- Both Zetecs '97 Contour Mtx - stock - GONE