Im not going to store my Miata away for the next four months, but it will get used substantially less. Northern VA winters are so hit or miss, I don’t know what to anticipate. We can have snow, weeks of single digits lows, or it could just hang out in the 40's until March. So what sort of prep, if any, should I do for the Miata?

I know it’s due for an oil change, but I can’t imagine putting more than 100 more miles on it until spring. Should I wait, and start spring driving and autocross season with brand new oil? Does it even matter? Help?