I live in San Diego. Poway to be exactly. Even on the coldest days, it rarely gets below 30 degrees. I drive (not at the same time, of course) a 08 Honda Civic and a 01 Chevy Silverado. Both use Mobil-1 synthetic oil. There are 2 schools apparently to when a person should actually drive a vehicle after starting it up. Some will let a car warm up to operating temp before driving it, and some will start the vehicle and drive slowly away for the first several miles as the vehicle warms up. I tend to be in the start it up and drive it school and the reason why I’m in that school, is I was informed many years ago that using Mobil-1 (In fact any good synthetic oil), there is a thin layer of oil that is left on the internal engine parts that will make start up wear zero. Is that true? Do the vehicle owners that start and drive their cars slowly for the first several miles, are they smart, or are they causing damage to their vehicles by not letting them warm up before driving away. BTW, my commute is 81 miles RT, from 500’ to 4500’.