If your operation maintains on-site diesel storage, bulk delivery is almost always the most cost-effective fueling solution. This guide covers everything you need to know — from fuel types and minimums to scheduling and tank monitoring.
What Counts as “Bulk” Diesel?
Bulk diesel delivery means receiving fuel in large quantities directly into your on-site storage tanks, rather than purchasing pre-packaged drums or jugs. Most suppliers define “bulk” as orders starting from 500 gallons, though this varies by provider and location.
Assurance Direct Oil delivers bulk diesel starting from 500 gallons, with typical orders ranging from 1,000 to 50,000+ gallons for large industrial operations.
On-Road vs. Off-Road Diesel: What’s the Difference?
Two primary grades of bulk diesel are available:
- On-road diesel (clear): For highway vehicles — trucks, buses, passenger cars. Federal excise tax applies.
- Off-road diesel (dyed red or blue): For non-highway equipment — excavators, generators, farm machinery. Tax-exempt, but illegal to use in highway vehicles.
Using off-road diesel in highway vehicles carries significant fines. Assurance Direct Oil ensures correct fuel type delivery with full documentation for compliance purposes.
Setting Up Automatic Refill
The most efficient approach to bulk diesel is automated scheduling:
- Assess consumption: We help calculate your average daily/weekly diesel consumption
- Set reorder point: Delivery triggers when your tank reaches a specified level (typically 25–30% capacity)
- Monitor remotely: Tank level sensors send automatic alerts to both you and our dispatch team
- Auto-delivery: A tanker is dispatched before you ever run critically low
This set-and-forget approach means you never think about diesel — it’s simply always there when you need it.
Fuel Quality Assurance
All bulk diesel from Assurance Direct Oil meets or exceeds ASTM D975 specifications. For operations with extended storage periods, we recommend diesel with biocide and stabilizer additives to prevent microbial growth and fuel degradation — particularly important for generator and emergency backup applications.
Contact us to discuss your bulk diesel requirements and receive a custom delivery schedule and pricing proposal.