ALL of the 0W-XX oils are outstanding products, use them year-round with confidence. You will never need the extreme cold start capability of an 0W where you live. A synthetic 5W-30 will be all you would ever need and, using M1 for an example, is heavily certified. PP is a light 5W-30.
I'm slowly converting everything I maintain to 0W-XX including my lawn tractor which is getting M1 0W-30 AFE today.
Originally Posted By: Rachael
Wow, thanks for all the great recommendations! I loved reading about peoples' memories of my area too, it's a small world! Been in Fitchburg for 4 years now and don't plan to leave soon.
So it seems like 5w30 is an easy choice, but a couple of people have mentioned 0w30... better mileage and cold starts is appealing to me. Are there any cons to going with a 0w30? I have always had old cars with old fashioned engines requiring 10w30 and even 10w40. So I'm a little squeamish about a 0w. An enlightenment about the protection abilities of a 0w30 would be appreciated. Engine longevity is my primary concern.