Keep your engine running at peak efficiency while improving fuel economy. Engineered for todays advanced engines, Mobil 1 Advanced Fuel Economy full-synthetic motor oil 0W-20 helps to improve fuel economy* and extend engine life for vehicles of all ages. Mobil 1 Advanced Fuel Economy utilizes Mobil 1s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to your vehicle.  Mobil 1 Advanced Fuel Economy full-synthetic motor oil 0W-20 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is Americas #1 selling synthetic motor oil brand at retail,** trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. (*Potential fuel economy improvement obtained by switching from higher-viscosity oils to a lower-viscosity grade. Actual savings are dependent upon vehicle/engine type, outside temperature, driving conditions, and your current engine oil viscosity. **Source: The NPD Group/Retail Tracking Service/Dollar Sales/PCMO full-synthetic/52 weeks ending September 30, 2023)