Fuel-Optimal Route Planning
for Fleet Operators
Nozle computes provably near-optimal fuel stops across complete routes using live station prices. Built for fleet management software, fleet card companies, and TMS platforms that need real savings — not estimates.
Fuel is 30–40% of fleet operating cost.
Most routing tools ignore it.
Existing routing tools optimize for time and distance. They don't model fuel price, tank capacity, or the cost of detour — the variables that actually cost you money.
Refueling at the first available station
Drivers stop where it's convenient, not where it's cheapest. A $0.40/gal swing across a 200-mile corridor can cost $30+ per fill-up on a 75-gal tank.
Routing tools optimize distance, not fuel cost
Shortest-path routing ignores price variance entirely. A short five minute detour can save companies hundreds of dollars a year.
Fuel cards show prices, but not where to stop
Card programs surface station prices, but the driver still has to do the math — and they don't, especially on multi-stop routes with tank constraints.
Provably Near-Optimal Routing
across complete routes.
Nozle takes your origin, destination, vehicle parameters, and a set of candidate stations with live prices. It returns the fuel stops and quantities that minimize total cost subject to tank, time, and detour constraints.
- →Whole-route optimization. We solve over the entire trip, not segment by segment.
- →Tank-aware. Capacity, reserve, and refuel-time constraints are part of the model, not an afterthought.
- →Provable guarantees. Every result includes a baseline comparison showing what naive refueling would have cost — so you can quantify the savings on every trip.
Three patterns.
Same API.
Nozle is a routing primitive — you decide where it sits in your stack. Most customers start with one pattern and add others as their product evolves.
Plan-time integration
Call Nozle when a route is created. Get a fully optimized fuel plan back in under a second. Drop into existing dispatch flows.
In-cab guidance
Embed in driver-facing apps. Compute optimal stops mid-route as prices change or constraints shift. Re-optimize on demand.
Card-network steering
Fleet card programs surface recommended stations to drivers based on full-route optimization, not just nearby prices.
You provide stations and prices.
We provide the algorithm.
Nozle doesn't store your station data, broker price feeds, or compete with your data providers. You bring the inputs you already license; we return the optimal plan.
- →No licensing conflicts. Use whatever station feed you already pay for — OPIS, GasBuddy, or your fleet card's network.
- →Data sent as received. Pass-through metadata. Extra fields you attach to stations or routes are returned unchanged, so you can preserve your internal identifiers and metadata
- →No PII. Routes are processed in-memory and not retained beyond the request.
See it working.
Without an account.
Try a live route with synthetic station data and see the optimal stops, prices, and savings — instantly.
Launch the Demo →One endpoint.
Clean JSON.
REST, JSON, no SDK required. Bring your station list and route; get back an optimal plan with a suboptimality bound.
import requests
result = requests.post('https://api.nozlerouting.com/v1/optimize',
headers={'X-API-Key': 'YOUR_API_KEY'},
json={
'route': {
'total_distance_miles': 1287.4,
'total_duration_minutes': 1124.8,
'start': {'lat': 32.7767, 'lng': -96.7970},
'end': {'lat': 33.7490, 'lng': -84.3880},
},
'stations': [
{
'id': 'WEX_45821',
'name': 'Pilot Travel Center #234',
'location': {'lat': 32.9, 'lng': -94.1},
'price_per_gallon': 4.12,
'fuel_type': 'diesel',
'miles_from_route_start': 187.3,
'detour_minutes': 2.1,
},
# ... more stations
],
'vehicle': {
'mpg': 6.5,
'tank_capacity_gallons': 240.0,
'current_fuel_gallons': 40.0,
},
},
).json()
print(f"Optimal stops: {len(result['stops'])}")
print(f"Savings: ${result['summary']['baseline_comparison']['savings_dollars']:.2f}")API at a glance
- P50 latency~120ms
- P95 latency≤400ms
- Rate limit60-120 req/min
- AuthIntegration Token Provided Per Client
- SDKsREST/JSON — integrate from any language
Built for the platforms
that move fleets.
Fleet management software
Add fuel-aware routing to your platform without building an optimization team. Customers see immediate savings on the routes you already plan.
Fleet card companies
Steer drivers to stations on your network where you have the best margin while still delivering optimal cost. Differentiate beyond rebates.
TMS & logistics platforms
Layer fuel optimization onto existing route-planning workflows. One API call, one drop-in line item in your savings dashboard.
Request access
or just say hi.
We're working with a small number of early partners. If you're building fleet software, run a card program, or operate a TMS, drop a note and we'll get back within a day.