low engine temps!! help

[clovers525e]

well, i installed my new koyo radiator, used about 50/50 coolant, water mix and went on my way. the factory temp gauge has been about a third of the way up instead of the normal half way. but last night the temp dropped outside and i was driving home from work on the freeway when i noticed the temp gauge sitting right around the bottom of the C on the factory gauge. i'm going to unplug my e fan tonight and see if that helps to bring them back up to proper temp but is there any major problems i face with running such low temps?

[S13DrIfTmEkAnIcS]

usually anything to do with heavy duty cooling with bring the stock needle about 2 or 3 notches above the cold line, your temp. sensor may have gone bad, but its not much of a problem running with a cold motor as long as your not beating on it