Blog

Guides, tips, and in-depth articles about fuel economy, gas mileage calculation, and saving money on fuel.

Browse by Topic

MPG Basics and Formulas Start with MPG math, conversions, and understanding label metrics. Trip Cost and Fuel Planning Plan road-trip and commute fuel spend with practical budgeting guides. EV Efficiency and MPGe Understand MPGe, charging costs, and apples-to-apples EV comparisons. Maintenance and Driving Habits Improve real-world fuel economy with behavior and upkeep checklists.

Most Used Calculators

Gas Mileage Calculator Track real MPG or L/100km from fill-up data. Trip Gas Cost Calculator Estimate gallons needed and total trip fuel spend. Cost Per Mile Calculator Compare per-mile costs across vehicles and routes. Gas vs EV Cost Calculator Run an apples-to-apples annual cost comparison.

Showing guides 16-30 of 87 (page 2 of 6).

Latest Guides

Mileage tracking dashboard for IRS method comparison
9 min read

IRS Standard Mileage Rate vs Actual Expense Method (2026)

IRS guidance allows standard mileage and actual expense methods. Method choice should balance rules, records, and practical maintainability.

Read article
EV instrumentation for Level 1 versus Level 2 charging decisions
9 min read

Level 1 vs Level 2 Charging: Cost, Speed, and Use Cases

Level choice should be driven by real usage pattern and charging-window constraints, not generic rankings.

Read article
Car dashboard and odometer for monthly fuel budgeting workflow
9 min read

Monthly Fuel Budgeting with EIA Data and Your MPG

A clean monthly budget workflow combines public market context with private usage data and a consistent variance-review process.

Read article
Highway corridor image representing NEVI federal funding standards
9 min read

NEVI Minimum Standards: What Federal Funding Requires

NEVI requirements are best interpreted by pairing DOT summary material with Federal Register full-text rule language.

Read article
Traffic congestion visual for fuel market supply interpretation
9 min read

Refinery Data for Drivers: Reading the Weekly Supply Report

Weekly supply context can improve fuel-price interpretation when used as explanatory input, not as a one-release forecasting shortcut.

Read article
Roadway image representing federal hearing process tracking
9 min read

SAFE Vehicle Rule III Hearing Process: How Public Input Works

Hearing notices are process documents. Reading them correctly helps planners separate timeline signals from final technical requirements.

Read article
Highway travel representing federal fuel-economy proposal coverage
9 min read

SAFE Vehicle Rule III: What the December 2025 Proposal Covers

The December 2025 Federal Register proposal describes suggested CAFE recalibration. Proposal status should be tracked separately from final-rule status.

Read article
Gas station signs representing state and national price comparison
9 min read

State vs National Gas Price Data: An Apples-to-Apples Method

State and national series are both useful only when definition, timing, and tax treatment are aligned before interpretation.

Read article
Fuel-efficient vehicles for model-year data workflow
9 min read

Using the 2026 Fuel Economy Guide as a Research Dataset

The 2026 guide, downloadable files, and web services can be combined into a reproducible research pipeline with clear version controls.

Read article
Road trip highway scene for fuel price planning
9 min read

Using the STEO for Gasoline Price Planning

STEO is strongest when used for planning ranges and scenario framing, then reconciled against observed weekly market data.

Read article
Vehicle odometer and trip meter display used for mileage deduction log records
9 min read

Mileage Deduction Calculator (2026): IRS Rate, Formula, and Log Template

The IRS standard business mileage rate for 2026 is 72.5 cents per mile . A useful mileage deduction calculator should support tax-year rate changes, purpose-specific rates, and...

Read article
Lineup of the most fuel-efficient cars for 2026 including hybrids and electric vehicles with high MPG ratings
10 min read

Best Gas Mileage Cars 2026

The best gas mileage cars in 2026 are led by hybrids like the Toyota Prius (57 MPG combined) and Honda Civic Hybrid (49 MPG combined), which deliver dramatically better fuel economy than...

Read article
Gas pump price display representing five-year fuel cost comparisons on the EPA label
8 min read

“You Save/Spend More Over 5 Years” on the EPA Label: What It Means

The “ You Save/Spend More Over 5 Years ” line on the EPA fuel economy label is a standardized fuel-cost comparison. It estimates how much more or less you would spend on fuel over five...

Read article
Stop-and-go traffic representing aggressive driving patterns that can reduce fuel economy
9 min read

Aggressive Driving and Gas Mileage: What the Data Shows

Aggressive driving—rapid acceleration, hard braking, and speeding—can reduce fuel economy. DOE’s fuel-saving guidance provides ranges for how much aggressive driving can...

Read article
Fuel economy tips image representing comparing tailpipe and upstream emissions for different vehicle types
11 min read

Beyond Tailpipe: Comparing Upstream Emissions with FuelEconomy.gov

Tailpipe emissions are only part of a vehicle's emissions footprint. FuelEconomy.gov provides a "Beyond Tailpipe Emissions Calculator" that combines tailpipe emissions with upstream...

Read article