Yes, different formulations for different service or costs.
For my Dakota I purchased the Rotella gasoline oil. I will have to look at what is in it. It is a full synthetic. I like the low and high temperature capabilities. Since emissions regulations, some engine parts can get very hot, rspecially in southern areas. In central Alberta we can get 40°C in the summer or winter. That is -40°F in winter and 104°F in the summer. For us that 100+ is extreme and feels even hotter than it is because we rarely get that hot. Normal summer day is 65°F to 70°F. The oils in motorhomes or trucks pulling trailers gets a workout. The synthetics really shine for that.
