Editorial Policy

Every guide on this site follows the same rules:

• Numbers first. Claims about runtime, wattage, and cost are calculated or sourced, not guessed.
• Sources cited. We link to manufacturer specs, government data (DOE, EIA, IRS), and standards bodies.
• Dated and updated. Every article shows when it was last updated; prices and tax-credit rules are re-checked on a schedule.
• No miracle fuels. We do not publish "run your car on water" claims or promote unverified fuel-saving devices. We fact-check them instead.
• Corrections. Found an error? Tell us and we'll fix it and note the change.