I use Amsoil synthetic 5W-30 with the SDF-11 filter they recommend, change it twice a year minimum, usually every 3000miles. There's no problem with cold start up out here, the coldest it gets is 40 or 50 at the worst. I only drive her 5000-6000 miles a year. . .
I should get this next oil batch analyzed, how do you do that exactly?
