$60K–$90K/yr Average fuel spend per truck
$0.05–$0.50/gal Discount range by card/location
$3K–$8K/yr Potential annual savings
IFTA Built In Most cards auto-track fuel by state
How Fuel Card Discounts Actually Work
Fuel card “discounts” sound great, but the way they’re calculated determines whether you actually save money.
Discount Off Retail (Best)
How it works: You pay the posted pump price minus a fixed discount per gallon.
Example: Pump price $3.89/gal, card discount $0.08/gal = you pay $3.81/gal
Easy to verify. You can compare against the pump price and confirm your savings instantly.
Cost-Plus Pricing (Good)
How it works: You pay a wholesale cost (like OPIS rack price) plus a fixed margin.
Example: OPIS rack $3.40 + $0.19 margin = you pay $3.59/gal (vs $3.89 retail)
Bigger savings, but harder to verify. You need to know the rack price to confirm.
Optimized Network (Verify)
How it works: The card company negotiates chain-specific discounts. Savings vary by location.
Example: TA/Petro might be $0.12/gal off, but Pilot might be $0.03/gal off on the same card.
Can be excellent, but check your actual statements. Some “optimized” prices are barely discounts.
Fuel Card Comparison
| Card | Network | Discount Type | Typical Savings | Fees | Best For |
|---|---|---|---|---|---|
| RTS Fuel Card | All major + independents | Cost-plus (OPIS) | $0.15–$0.40/gal | No annual fee | O/Os, small fleets |
| TCS Fuel Card | All major + independents | Cost-plus (OPIS) | $0.10–$0.35/gal | No annual fee | O/Os using TCS factoring |
| Comdata | All major chains | Optimized network | $0.05–$0.25/gal | $2-$5/mo per card | Fleets needing controls |
| WEX / EFS | 90% of truck stops | Optimized network | $0.05–$0.20/gal | $2-$4/mo per card | Established fleets |
| Pilot Flying J | Pilot/FJ only | Retail discount | $0.03–$0.08/gal | No fee | Drivers on Pilot routes |
| Loves | Loves only | Retail discount | $0.03–$0.08/gal | No fee | Drivers on Loves routes |
| Mudflap | Independents + some chains | Cost-plus (OPIS) | $0.15–$0.50/gal | No fee (app-based) | Drivers near independents |
The smart play: Most owner-operators carry 2 cards — one major network card (RTS, TCS, or Comdata) plus the loyalty card for whatever chain is on their regular routes (Pilot, Loves, or TA). Use the discount app (Mudflap, GasBuddy) for independent stops with the best prices.
Hidden Fees That Eat Your Savings
The discount is the headline. The fees are the fine print. Here’s what to watch for:
Transaction Fees
$0.50-$2.00 per fuel transaction. At 4 fill-ups per week, that’s $100-$400/year eating into your discount.
Ask if waived above a monthly fuel volume
Out-of-Network Fees
$1-$5 per transaction when you fuel outside the card’s preferred network. Some cards charge $5+ for non-partner stops.
Check coverage on your regular routes first
Monthly/Annual Fees
$2-$10/month per card. Small for one card, but fleets with 10+ cards pay $240-$1,200/year in fees alone.
Many no-fee alternatives exist for O/Os
Inactivity Fees
$3-$10/month if you don’t use the card for 30-60 days. Forgot about a spare card? It’s quietly billing you.
Cancel cards you stop using
Cash Advance Fees
5-15% of the withdrawal amount. A $200 cash advance could cost you $10-$30 in fees.
Use debit cards for cash, fuel cards for fuel
Maintenance Purchase Markup
Some cards allow non-fuel purchases (tires, oil) but mark them up 2-10% over retail price.
Buy maintenance items separately on regular cards
IFTA Tracking and Tax Benefits
Automatic IFTA Tracking
Most fuel cards automatically record gallons, price, and location by state. This data feeds directly into your IFTA reporting — saving hours of manual record-keeping every quarter.
- Gallons by state (automatic)
- Total fuel spend by period
- Exportable reports for your accountant
- Backup documentation for IFTA audits
Tax Deduction Documentation
Fuel is your biggest deductible expense. Fuel card statements provide the documentation the IRS requires — date, amount, location, gallons for every transaction.
- Itemized statements replace receipt boxes
- Year-end summary for tax prep
- Audit-ready documentation (3 years)
- Separate from personal expenses automatically
Fuel Tax Savings Strategy
Some states have significantly lower fuel taxes. Planning your fuel stops strategically can save $500-$2,000/year.
- Low tax: SC, NJ, MS, VA, OK
- High tax: CA, PA, WA, IN, IL
- Your fuel card statement shows exactly where you fueled
- IFTA refunds you for overpaid state taxes
Fuel Card Security Controls
Fuel theft is a real problem — both external skimming and internal misuse. Good fuel cards offer controls:
Purchase limits — Set daily/weekly gallon or dollar limits per card
Driver ID / PIN — Require a unique PIN for every transaction (prevents unauthorized use)
Vehicle ID — Match card to specific truck; flag if used on a different unit
Product restrictions — Limit to diesel only; prevent unauthorized purchases (DEF, merch)
Real-time alerts — Notification when card is used, declined, or exceeds limits
Transaction time restrictions — Only allow fueling during business hours or scheduled times
Fleet owners: If you give drivers fuel cards, controls aren’t optional. A single driver fueling personal vehicles or selling fuel to friends can cost you thousands before you notice. Set gallon limits that match your trucks’ tank capacity.
The Insurance Connection
Fuel spend = revenue indicator for audits. Insurance auditors sometimes use fuel purchases to verify reported mileage and revenue. If you claim $150K in revenue but your fuel spend suggests $250K in miles, expect questions. Accurate fuel records keep your audit clean.
Fuel card data proves route history. In an accident claim, your fuel card transactions can verify where you were, when, and your route pattern. This data has been used in litigation to support — or undermine — driver testimony.
Lower fuel costs = better margins = easier to afford proper coverage. Saving $5,000/year on fuel is $5,000 you can put toward better insurance coverage, higher limits, or lower deductibles. The best-run trucks are the best-insured trucks.
Need help understanding how your operating costs affect your insurance premiums?
Frequently Asked Questions
Can I use a personal credit card for fuel instead?
You can, but you’ll miss out on trucking-specific discounts ($0.10-$0.40/gal), IFTA auto-tracking, and the ability to separate business from personal expenses. Even a 2% cash-back credit card only saves $0.06-$0.08/gal at $3.50 diesel — far less than most fuel cards. Use a fuel card for fuel, a business credit card for everything else.
Do I need good credit to get a fuel card?
Most trucking fuel cards don’t require a credit check because they’re prepaid or billed weekly. Cards like RTS, TCS, and Mudflap are available to new owner-operators with no credit requirements. Comdata and WEX may check credit for net-billing terms. If your credit is thin, start with a no-credit-check card and upgrade later.
Should I get a chain-specific card or a universal card?
Both. Get a universal card (RTS, TCS, Mudflap) for the best per-gallon savings across all locations. Then add a free chain-specific loyalty card (Pilot, Loves) for points and perks at the stops you visit most. The universal card handles cost savings; the loyalty card handles showers, parking priority, and points.
How do factoring companies interact with fuel cards?
Some factoring companies (like TCS) offer fuel cards as part of their service — your load payments go to the factoring account and you fuel from the same account. This can be convenient but watch for stacked fees. Make sure the combined factoring fee + fuel card fee doesn’t exceed what you’d pay separately. Compare the total cost, not just the fuel discount.