EFS vs Comcheck vs T-Chek: Which Fuel Card is Best?
Fuel is the single largest expense for any trucker. Choosing the right fuel card can save you thousands of dollars per year in discounts, while the wrong choice can mean limited acceptance and missed savings. This guide compares the three major fuel payment systems — EFS, Comcheck, and T-Chek — covering accepted locations, fees, discount networks, and how they integrate with fuel advance programs.
$0.05-$0.15
EFS Discount/Gallon
8,000+
Comcheck Locations
15,000+
EFS Network Stops
$3K-$8K
Annual Savings Potential
Ahmad Qazi
Founder & CEO, O Trucking LLC
Fact-Checked by O Trucking Fuel Management Team
5+ years managing fuel card programs for owner-operators
Sources:
Written by Ahmad Qazi, founder of O Trucking LLC, drawing on 9+ years dispatching for owner-operators. Learn more about us.
O TruckingEFS vs Comcheck vs T-Chek: Which Fuel Card is Best?
Key Takeaways
- EFS (by WEX) delivers the largest, most consistent fuel discounts, roughly $0.05–$0.15 per gallon at 15,000+ network stops.
- Comcheck (by Comdata/Corpay) is the versatile payment system for fuel advances, lumper fees, and other road expenses at 8,000+ locations.
- T-Chek is owned by WEX — the same family as EFS — so it behaves like Comcheck but accepts at fewer (~6,000) locations.
- The market is two corporate camps: WEX (EFS + T-Chek) and Corpay/Comdata (Comcheck); running one card from each gives the widest coverage.
- Many factoring companies bundle an EFS fuel card, sometimes with fleet-level discounts — check that before paying for a separate card.
- Always compare the net (after-discount) price between stops, not the cash price on the pump sign.
Side-by-Side Comparison
| Feature | EFS | Comcheck | T-Chek |
|---|---|---|---|
| Provider | WEX Inc. | Comdata/Corpay | WEX Inc. |
| Primary Use | Fuel card + discounts | Payment/fuel advances | Fuel purchases/advances |
| Fuel Discount | $0.05-$0.15/gal | Varies by issuer | Varies by issuer |
| Locations | 15,000+ | 8,000+ | 6,000+ |
| Lumper Payments | Limited | Yes — primary use | Yes |
| Cash Advance | Limited | Yes — up to approved limit | Yes |
| Transaction Fee | $0-$2 | $2-$5 | $2-$5 |
| Factoring Integration | Most factors support | Most factors support | Some factors support |
EFS (Electronic Funds Source) — Best for Fuel Discounts
EFS, now part of WEX Inc., is the leading fuel card system for the trucking industry. Its primary advantage is the fuel discount network — EFS cardholders receive negotiated discounts at over 15,000 truck stop locations, including Pilot/Flying J, Love's, TA/Petro, and independent stops.
For an owner-operator burning 1,500-2,000 gallons per month, a $0.10/gallon EFS discount saves $150-$200 per month — $1,800-$2,400 per year. That is significant money for zero extra effort beyond swiping a different card at the pump. The EFS discount alone makes it the preferred fuel card for most owner-operators.
EFS also offers fuel optimization tools that show you which nearby stops offer the lowest net price (pump price minus your discount), helping you plan fuel stops for maximum savings. Their mobile app provides real-time balance, transaction history, and station finder.
EFS Pros
- +Largest, most consistent fuel discounts ($0.05–$0.15 per gallon) at 15,000+ network stops
- +Fuel optimization tools and app show the lowest net price on your route
- +Supported by most factoring companies, sometimes with fleet-level discounts
- +Same WEX corporate family as T-Chek, so back-end systems and acceptance overlap
EFS Cons
- −Limited for lumper payments and cash advances — Comcheck is better for those
- −Discounts come off a network reference price, not the advertised pump sign
- −Obtained directly (not through a factor) it may involve a credit check or deposit
Comcheck — Best for Versatile Payment
Comcheck, operated by Comdata (part of Corpay/FLEETCOR), is the industry-standard payment system for over-the-road expenses beyond just fuel. Comchecks can pay for fuel, lumper fees, scales, tire repairs, and other truck-related expenses at over 8,000 locations.
The key advantage of Comcheck is its versatility. While EFS excels at fuel discounts, Comcheck is the system brokers and dispatch services use to send fuel advances, pay lumper fees, and cover other road expenses. If you need cash for a lumper at a warehouse, your dispatcher sends a Comcheck to the nearest truck stop where you cash it.
Many carriers use both EFS and Comcheck — EFS as their everyday fuel card for discounts, and Comcheck for fuel advances and non-fuel expenses. This dual approach maximizes both savings and flexibility. Learn more about Comcheck in our how to use Comcheck guide.
T-Chek — Solid Alternative
T-Chek, also owned by WEX Inc. (the same company as EFS), is a payment system similar to Comcheck. It allows fuel purchases, cash advances, and some maintenance payments at over 6,000 locations. T-Chek functions as a paper check or electronic payment that drivers present at truck stops.
T-Chek has a smaller acceptance network than Comcheck, which limits its usefulness for some drivers. However, if your dispatch service or factoring company issues T-Cheks, they are a perfectly functional payment method. The transaction fees and acceptance at major truck stop chains (Pilot, Flying J, Love's, TA) are comparable to Comcheck.
Which Should You Use?
For Daily Fuel Purchases: EFS
The fuel discounts make EFS the clear winner for everyday fueling. The savings add up to thousands per year.
For Fuel Advances and Lumper Fees: Comcheck
Comcheck's broad acceptance and versatility make it the best option for non-fuel expenses and fuel advances from brokers or dispatch services.
For Maximum Savings: Both EFS + Comcheck
Use EFS for fuel (best discounts) and Comcheck for advances and expenses (broadest acceptance). Most factoring companies and dispatch services can accommodate both.
Ask Your Factoring Company About Fuel Cards
Who Owns What: WEX vs Corpay
One point of confusion worth clearing up: EFS and T-Chek are the same corporate family. Both are owned by WEX Inc., which is why they often share back-end systems and acceptance. Comcheck is the odd one out — it comes from Comdata, now part of Corpay (formerly FLEETCOR). So the fuel-payment market really comes down to two camps: WEX (EFS + T-Chek) and Corpay/Comdata (Comcheck). Understanding this helps explain why EFS and T-Chek behave so similarly, and why running one card from each camp (e.g. EFS for fuel, Comcheck for advances) gives you the widest possible coverage.
Common Fuel-Card Mistakes to Avoid
Comparing the pump sign instead of the net price. Your discount is taken off a network reference price, not the cash sign. Compare the after-discount (net) price between stops — use your card's app or fuel optimizer to find the cheapest net price on your route.
Ignoring per-transaction and cash-advance fees. A small per-gallon discount can be eaten up by repeated advance fees. Read the fee schedule and confirm who pays each fee before you rely on a card for cash.
Buying a separate card when your factor already offers one. Many factoring companies bundle a fuel card — sometimes with fleet-level discounts. Check that first to avoid paying for two programs. See our best fuel cards for owner-operators guide.
Confusing a fuel advance with a fuel discount. An advance is borrowed money against a load (and carries a fee); a discount is a real per-gallon saving. Know the difference in our fuel advance vs Comcheck guide.
Frequently Asked Questions
Do you need good credit to get a fuel card?
It depends on the source. A card issued directly by a provider often involves a credit check and may require a deposit for new authorities. The easier path for new carriers is a fuel card bundled with a factoring company — because it's tied to your receivables rather than a credit line, approval is usually faster and doesn't hinge on personal credit.
Is EFS the same company as T-Chek?
Yes — both EFS and T-Chek are owned by WEX Inc., which is why they share systems and acceptance. Comcheck is separate, from Comdata (now part of Corpay).
Where can I cash a Comcheck?
Most major truck stops cash Comchecks for fuel and cash advances. For a full walkthrough see where to cash a Comcheck and our how to use Comcheck guide.
Are card discounts the same as the price on the sign?
No. The sign shows the cash/retail price; your discount comes off a separate network reference price. Always compare the net (after-discount) price between stops, not the advertised sign.
How O Trucking LLC Helps with Fuel Management
Fuel Advance Support
We provide fuel advances through Comcheck or EFS to help our carriers cover fuel costs before load payment arrives. Our advances are processed quickly so you can fuel up and keep moving.
Route Fuel Optimization
Our dispatch team considers fuel costs and discount locations when planning routes, helping you fuel at stops where your EFS discount is highest and fuel prices are lowest.
Need Fuel Advances or Fuel Card Setup?
Our dispatch team provides fuel advances and helps carriers set up the right fuel card programs to maximize savings on every mile.