mpg increasing

I guess I should be thankful, I average 21-22 in city driving for my commute, I've been averaging over 24 on my highway trips. Here was the most recent.

 

You must have missed my point. Your vehicle's first oil change (regardless of viscosity) is not going to magically increase your MPG by 4mpg as was suggested earlier by some others in this thread. Unless of course you believe in Leprechauns, Unicorns and the Care Bear Stare

 

Man Smitty, you always seem down in the dumps. Maybe you could use a "care bear stare" or pretty unicorn to come cheer you up.

 

This is likely also tied to temps. Colder thinner air is more dense and uses more fuel. Plus people tend to idle less (no need to warm up the car).

For reference, I changed the oil in my Subaru WRX and saw 3 mpg better mileage on the highway. Same weather, temps, and same drive actually. The only thing that's not controlled is the wind on those different days.