What would you recommend for a 16kw, Generac stand-by generator. It does a 5 minute self test once a week, but it could sit for months or years other than that if there's no outage. It's powered by a natural gas B&S v-twin and I reside in Michigan. The manual specifies 5w-30 synthetic.
I leaning toward M1ep. I plan to change it yearly regardless of whether there is an outage. Thanks for your thoughts.
I leaning toward M1ep. I plan to change it yearly regardless of whether there is an outage. Thanks for your thoughts.