Make the comparison like for like
A headline price is useful only when you know what it covers. Before comparing two fuel options, set a common volume and period, confirm the unit and write down which charges are included. A cents-per-litre difference, a weekly service fee and a per-delivery fee cannot be added directly without first converting them to the same basis.
Use the same product and service assumptions for both options. Confirm the applicable volume, delivery frequency, quote date and validity period from the actual quotation. These are questions to resolve with the quote, not facts this calculator can supply.
Keep tax treatment consistent. Do not subtract a tax-inclusive price from a tax-exclusive price. The tools let you label an entered basis but do not determine applicable taxes or recoverable amounts. Where that distinction affects a real decision, obtain the appropriate explanation separately.
Turn fees into a comparable total
Two hypothetical weekly options, before applicable taxes
Option A supplies 1,800 L at C$1.60/L with no extra fee. Its weekly fuel-and-fee total is 1,800 × C$1.60 = C$2,880.
Option B supplies the same 1,800 L at C$1.57/L plus a C$90 weekly fleet fee. Its total is C$2,826 + C$90 = C$2,916.
Option B's lower per-litre price saves C$54 on fuel, but its fee is C$90. On these inputs its total is C$36 higher for the week. Its fee-adjusted cost is C$2,916 ÷ 1,800 = C$1.62/L, compared with C$1.60/L for Option A.
The fee-adjusted figure is volume-dependent. If the same C$90 fee applies to only 900 L, it adds C$0.10/L rather than C$0.05/L. Confirm the actual fee terms before applying that sensitivity to a supplier quote.
Compare the operating difference separately
After normalizing fuel and fees, consider genuinely avoidable stop time and vehicle costs. The fuel-stop calculator is designed for an alternative with a non-negative extra fuel price that may remove time or detour expense. It preserves both time-and-cost value and the cash effect.
For example, six stops per week at 300 L each use the same 1,800 L weekly volume. A 3-cent/L premium adds C$54 per week. If that arrangement also adds a weekly fleet fee, enter the fee once for the fleet rather than multiplying it by each stop.
The current fuel-stop tool does not accept a negative premium. If the alternative has a lower unit price, use a direct fuel-and-fee comparison like the example above, and document any time difference separately. Do not flip the time-savings assumption merely to force a lower-price option into the tool.
A short quote-comparison checklist
- Same fuel product, volume and time period for both options.
- Price stated in C$/L or converted clearly from cents/L.
- Tax basis identified and consistent across all compared amounts.
- Fees converted to the correct weekly fleet or per-stop basis.
- Conditional discounts counted only when their conditions are satisfied.
- Time remaining under the alternative subtracted from any time-saving claim.
- Payment, delivery and quote-validity terms checked against the actual documents.
Save the original quotes and your assumptions alongside the comparison. This makes it possible to see whether a later change came from price, volume, terms or your own model inputs.
The arithmetic is only part of a supplier decision
A normalized cost comparison does not assess quality, delivery reliability, credit exposure, storage requirements, capital spending or operational feasibility. It also does not establish a legal or tax interpretation of the quotes. Resolve those questions separately before acting on a real arrangement.
Source & calculation notes
Original hypothetical quotation exercise. Prices, volumes and fees are invented solely to explain the arithmetic; no supplier or current market claim is made. Tax treatment is intentionally outside scope.
Calculation/source checkpoint: . Original explanation by Truck University; see our editorial method.
How our editorial method works