One call a week for California drivers: fill now, or wait. Built on official EIA data and graded in public every Monday.
Free · no card · one email a week.
Live from the latest EIA print. The dashed point is the call above.
DoorDash, Uber Eats, and Lyft drivers fill up far more often than average, so a single bad week costs them more than anyone. You cannot control the price. You can control the week you fill.
We pull California's weekly retail price series from the EIA
Our model projects the next weekly move before Monday's EIA print
You get one clear call: fill this week, or wait
Full-time delivery drivers cover 800-1,000 miles a week and spend $200-300/month on gas. Every fill is a chance to save or lose money.
Source: BeemEvery accuracy figure on this page is recomputed from real EIA data on load. Nothing is typed in by hand.
No credit card. No trial expiry. Just better fills.
Run a fleet? The same call, applied across your vehicles →
$2.99/mo
Pilot program
Yes. The Free plan is free forever - no credit card, no expiry. You get the weekly fill call by email and 1 location.
Every accuracy figure we publish is recomputed from California EIA weekly data each time the page loads, so it is always current. Those figures come from a backtest of the model, not from forecasts we issued in advance and later graded.
Right now FillWindow is California-only. We focus on CA because we use official EIA data, updated weekly.
One weekly EIA print ahead. The underlying data is California's weekly retail price series, so you get a call on the week: fill now, or wait. We do not claim a specific 2-hour slot.
Primarily DoorDash, Uber Eats, and Lyft drivers, who fill up far more often than average. But anyone paying CA gas prices can benefit.
Join California gig drivers who fill up smarter.
Free · no card · one email a week.