I keep my boat in an unheated garage, and a friend told me I did'nt need to do this if kepted in the garage. I ran the gas out of the motor before putting her away. Is this something I do not have to do while in the garage for the winter months? Gets about 30 degrees and may get a alittle cooler at times. Am I ok not to winterize next fall? Tks. for any impute. Daveywonder wondering!!!