Use the recommended motor oil and check the gas cap seal
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Fill your engine with the exact oil viscosity listed in the owner's manual (e.g., 0W-20 or 5W-30) and make sure the gas cap clicks tight after every fill-up. These two overlooked maintenance items quietly erode fuel efficiency when neglected.
Why It Works
The manufacturer-specified oil viscosity minimizes internal engine friction. Thicker or thinner oil than recommended forces the engine to work harder. A loose or damaged gas cap lets fuel vapors escape and can trigger a check-engine light, which may cause the engine computer to run a richer fuel mixture.
Tips
- Replace the gas cap if the rubber seal is cracked or it no longer clicks shut
- Switching to the correct oil grade can improve fuel economy by 1-2%
- Check the oil viscosity recommendation for your specific climate if the manual lists multiple options
Created: 4/23/2025, 10:42:43 PM diylow costbest practice
Owner's manual, replacement gas cap (if worn)