2002 Chevy s10 4.3L v6, 100k miles on it. I switch jobs so now I will be driving this truck 2 miles to the train station to take the metrolink to work. That's 4 short miles per day on the truck. When the truck was being driven 26 miles per day, I was using whatever 5w30 or 10w30 was on sale, mostly syn blend, no issues. I'm thinking continue with the same oils and change it once a year. I'm thinking no more than 1500 miles will be put on the truck per year (work and running errands). Your thought on oil?