Get your fill at Mobil
Fill your day with Smiles from Mobil! From July 27 to September 20, 2018, Mobil Smiles members will receive a McDonald's® $1 or $2 coupon with every $25 fuel purchase at Mobil.
Watch how your engine turns energy into motion
This video goes inside an engine to show you how Mobil fuel works.
Checking and adjusting the pressure of your tires once a month may increase a car's fuel efficiency by up to 3%.
Rapid acceleration and braking often may decrease instantaneous fuel economy by up to 33%.