Great Loop Planning Guide
Great Loop Fuel Stops
Fuel planning on the Great Loop is not just a question of tank size. It is a question of real range, reserve margin, fuel dock hours, current, speed choice, generator use, weather delays, and whether the next dependable dock is actually open when you arrive. Good fuel planning keeps the trip boring in the best possible way.
Written and maintained by TheCenterOf editors. Last reviewed: 2026-05-29. This page is editorial planning guidance, not navigation, legal, insurance, mechanical, survey, financial, or safety advice. Verify current charts, bridge and lock information, marina terms, yard availability, fuel status, weather, insurance language, manufacturer specifications, and local rules before making a departure or purchase decision.
Who this is for
Use this guide if you are building a fuel plan by route segment instead of relying on optimistic range numbers.
It is useful for both single-engine trawlers and faster powerboats because every boat can become inefficient when pushed outside its happy speed.
The short version
- Use real-world burn, not sales-brochure optimism.
- Plan around dependable fuel availability, not just icons on an app.
- Carry reserve for current, detours, closed docks, generator use, and weather rerouting.
- Slow speed often buys range, but only if the boat is actually efficient at that speed.
- Call ahead before remote or timing-sensitive stretches.
Range is a planning number, not a bragging number
Many boats can claim a range number under ideal conditions. A Great Loop plan needs the range the boat can deliver with normal loading, bottom condition, dinghy, gear, current, wind, generator use, and a crew that may not always run the engine at the mathematically perfect speed. The number to trust is the one you have measured in ordinary use.
If you do not know the boat’s real burn, start conservative. Track engine hours, gallons added, speed over ground, current, and loading. After a few refuels, your own log becomes more useful than almost any generic estimate.
Where fuel planning gets tight
Inland rivers
Fuel spacing, tow traffic, current, debris, and fewer easy backup options make conservative reserve important.
Gulf staging
Fuel decisions interact with weather windows, exposed legs, and whether the chosen stop is open and reachable.
Remote anchor runs
A few quiet nights can be wonderful, but generator use and detours still count against the plan.
Busy seasonal areas
Fuel exists, but dock access, hours, lines, and weather can disrupt the simple version of the day.
How much reserve to keep
There is no universal reserve number that fits every boat and route, but the principle is simple: the more uncertain the next fuel option, the more reserve you protect. If the next dock is close, open, deep, and easy, the margin can be practical. If the next dock is far, exposed, seasonal, shallow, or unconfirmed, the margin should be larger.
Reserve is not wasted fuel. It is permission to wait, divert, slow down, handle current, or absorb a closed dock without turning a normal inconvenience into a crisis. Crews often learn this lesson once; better to learn it before the hard day.
Fuel dock verification questions
- Do you have diesel, gasoline, or both today?
- What are the fuel dock hours, and do they change seasonally?
- What is the depth at the fuel dock and approach?
- Can you handle the boat’s length, beam, and height?
- Is there room to wait or turn if the dock is busy?
- Are pump-out, water, and trash available at the same stop?
Decision checklist
- Calculate range using real burn logs and a conservative reserve.
- Mark confirmed fuel stops before each sparse segment.
- Call ahead when the fuel stop controls the next day’s movement.
- Keep a written backup fuel option for long or exposed legs.
- Log gallons, hours, speed, conditions, and generator use after each fill.
Common mistake to avoid
The common mistake is confusing “there is fuel somewhere on the chart” with “fuel is available to my boat when I need it.” Hours, depth, dock access, fuel type, seasonal closure, and weather all matter.
Related Great Loop pages
Best Marina Stops · Provisioning Stops · Repair Yards · Anchorages vs Marinas · Catamaran vs Trawler · Diesel vs Gas · Single vs Twin Engine
Starter Guide · Route Overview · Seasons · Budget · Boat Requirements · Marina Planning
How this page was built
This guide was written as a practical editorial aid for Great Loop and boating readers. It focuses on repeatable planning decisions, conservative verification habits, and tradeoffs that readers can apply to their own boat and route. Static pages cannot replace current official information or professional advice, so the page deliberately points readers back to verification when a decision depends on present conditions, local rules, equipment condition, or contract language.
Corrections, updated local notes, broken links, and first-hand route observations are welcome through the contact and corrections page.