My vehicle is an '18 F150 with the 3.5 ecoboost, max tow package. I've been using QSUD 5w30 (on sale at Menards for $3 a quart) changed whenever the oil life monitor gets to about 25% which is usually around 3500-4k in winter and about 5k in summer . It gets short trips as I only live about 5 miles from work, so fuel dilution becomes a concern in the winter. I also tow a 26' travel trailer about 800 miles and an 18' fiberglass fishing boat around 1500 miles in summer. Would I be better off for the extra money to switch to a 0w40 like Mobil1 compared to the 5w30 Quaker State given the short change intervals?