Updated April 5, 2026 — Prices updated regularly from EIA data
$4.24
Diesel Fuel (N/A octane) per gallon
About Diesel Fuel in Suffolk
At $$4.24 per gallon, Suffolk's diesel price is {comparison} the national average for ultra-low-sulfur diesel. Diesel remains the dominant choice for commercial transport, heavy-duty pickup trucks, and an increasing number of consumer SUVs.
When to Use Diesel Fuel
Best for: commercial and towing
Vehicle types: diesel trucks and commercial vehicles
Mixing grades is generally fine in practice — your engine's knock sensors will adjust timing accordingly. If your vehicle requires premium and you add some regular, no immediate damage occurs. Consistently running below the required octane in a performance engine is not recommended long-term.
{octaneInfo} Octane rating measures a fuel's resistance to premature ignition (knock). Standard regular is 87, mid-grade is 89-90, and premium is 91-93 in the United States.
Use GasBuddy and filter by fuel type to see current Diesel Fuel prices at stations near your location in Suffolk. Warehouse clubs and high-volume discount stations typically offer the best Diesel Fuel prices.
All Diesel Fuel sold in Suffolk must meet minimum federal standards. TOP TIER certified stations add extra detergency additives. Most major brands (Shell, Chevron, Costco, Wawa) are TOP TIER certified. Non-certified independents meet legal minimums only.