stamford CT here. 98 corolla. pure 1 oil filter. its been warm past 24 hours, in fact thier was fog here overnight.like early spring, when it should be 42 degrees, its like 55. but temp is dropping today. past month temps at night have been around 22 degrees F.
Did my oil change last month, pennzoil platinum. what i have noticed, in this 22 degree cold, (5w30 oil) it still hesitates just a tad to start. never had that heistation with valvoline synthtic. i got the platinum becuase according too piqua it was thinner. and here i discovered the vavoline synth started much smoother n fast n easier than platinum...
for the record* i left quart of super tech 10w30 dino in the back seat. other day it was like 25 F...letting car warm up, picked it up. the oil was not moving* so yes! as the post says..get your synthetic out!