I have a 2015 Toyota 4Runner and tow a 3000 lb travel trailer. My question is would it be wise to switch to 0-30 M1 is the towing season/hot months? The 6 bannger in the 4Runner really winds up when towing, especially in the mountains, and temps run in the 90's to 100 in the summer months. I currently run M1 0-20 and change at 7k when towing, 10 k when not. Will the 0-30 be better protection?
Thanks
Thanks