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FuelGo Blog

Fuel guides for people who can’t run dry.

Diesel grades, DEF, storage rules, generator fueling and fleet fuel management, explained by the dispatch team that delivers it every day.

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Yellow excavator, wheel loader and articulated dump trucks parked on a dirt equipment yard
Storage & Compliance

Why Do Diesel Engines Last Longer Than Gasoline Engines?

Why do diesel engines last longer? High compression, heavy iron, low rpm and rebuildable cylinders. The caveats, and how clean fuel protects engine life.

· 14 min read
Aerial view of a row of white semi-truck tractors parked side by side in a fleet yard
Diesel Fuel

Why Is Diesel More Expensive Than Gasoline? The 2026 Gap, Explained

Why is diesel more expensive than gas? Diesel ran $1.99 over regular in Oct. 2026. Refining margins, global demand, stocks, taxes, and what fleets can do.

· 15 min read
Two technicians with a tablet beside open server racks in a long data center hall
Generators & Backup Power

How Much Diesel Does a Data Center Need? Sizing On-Site Fuel by MW and Runtime

How much diesel a data center needs: gallons per MW per hour, 24/48/72-hour fuel by IT load and PUE, and a worked 10 MW example with truck counts.

· 13 min read
Transport tanker truck with a red tractor dropping fuel through a hose into an underground storage tank fill
Diesel Fuel

How Bulk Diesel Is Priced: Rack, OPIS and Futures

How bulk diesel is priced: NY Harbor futures and spot, the terminal rack price OPIS tracks, then freight, taxes and delivery, and how to check a quote.

· 15 min read
Pickup truck fuel delivery rig with a red hose reel, blue pump and mechanical meter register in the bed, its hose running to a worker in a safety vest kneeling beside a parked SUV
Diesel Fuel

How to Read a Fuel Delivery Ticket: Fields, Meters and Short Deliveries

How to read a fuel delivery ticket: required fields, meter zeroing and tolerance under NIST Handbook 44, and a 5-minute check for short deliveries.

· 11 min read
Aerial view of a row of white semi-truck tractors parked side by side on an asphalt lot
Diesel Fuel

Dyed Diesel on Highways: What the October 2026 Executive Order Means for Fuel Buyers

EO 14435 and IRS IR-2026-122 pause federal dyed diesel penalties on highways through Dec 31, 2026. What's issued, what's still open and which states match.

· 15 min read
Yellow excavator, wheel loader and articulated dump trucks parked on a dirt equipment yard
Diesel Fuel

Off-Road Diesel Tax Refunds: How to Claim Federal Tax Back on Form 4136 and Form 8849

Paid federal tax on clear diesel you burned off-road? How to claim 24.3¢ a gallon back on Form 4136 or Form 8849, who qualifies and what records to keep.

· 18 min read
Two blue containerized diesel generators on trailers, with exhaust stacks on top, parked on a concrete pad beside office buildings
Generators & Backup Power

Generator Fuel Consumption Chart: Diesel Gallons per Hour by kW and Load

Diesel generator fuel consumption chart: gallons per hour at 25–100% load for 20 kW to 2 MW sets, from Cummins, Cat, Generac and Kohler spec sheets.

· 11 min read
Blue diesel exhaust fluid filler cap on a truck's DEF tank, next to a blank blue-bordered label
DEF

How Much DEF per Gallon of Diesel? DEF Consumption Rates by Engine and Application

DEF consumption rate by engine maker: 2–3% of diesel for most, 3–5% for Cummins, up to 8% on big Tier 4 gensets. Ratio math, tables and a calculator.

· 12 min read
White tank trailer with a red cab unloading through an orange hose into an underground storage tank fill on a concrete pad
Diesel Fuel

Fixed-Price Diesel Contracts: How Locking In a Diesel Price Works

How fixed-price diesel contracts work: priced off NY Harbor ULSD futures, the honest trade-off, who they suit and the terms to ask before you lock in.

· 13 min read
Fuel tank truck parked among a dozer, two excavators and an articulated dump truck on a graded dirt construction site
Diesel Fuel

Construction Site Fuel Theft: How It Happens and How to Stop It

Construction site fuel theft: how diesel gets siphoned, drilled and skimmed from job sites, the warning signs, and the layered controls that stop it.

· 13 min read
DEF Storage: Shelf Life & Best Practices for Fleets
DEF

DEF Storage: Shelf Life & Best Practices for Fleets

How to store DEF: shelf life by temperature, the right container materials, avoiding contamination, freezing and heat effects, and bulk tank rules.

· 10 min read
Diesel Fuel Storage Regulations by State: The Definitive Guide
Storage & Compliance

Diesel Fuel Storage Regulations by State: The Definitive Guide

A guide to diesel fuel storage regulations: federal SPCC, UST & fire code rules, plus how state and local requirements layer on top. Not legal advice.

· 11 min read
What Does DEF Do? A Complete Guide for Fleet Owners
DEF

What Does DEF Do? A Complete Guide for Fleet Owners

Learn what DEF does, how SCR reduces NOx emissions, what happens when DEF runs low, and how to store and manage diesel exhaust fluid.

· 12 min read
DEF vs AdBlue: What’s the Difference?
DEF

DEF vs AdBlue: What’s the Difference?

DEF and AdBlue are the same fluid under different names. Who named them, where each is used, the ISO 22241 standard, and if they're interchangeable.

· 9 min read
Diesel Fuel Grades Explained: Types, Uses & How to Choose
Diesel Fuel

Diesel Fuel Grades Explained: Types, Uses & How to Choose

Diesel grades #1, #2 and #4 explained, plus ULSD, dyed diesel, biodiesel and R99: cetane, cold-weather performance and how to pick the right grade.

· 12 min read
Rooftop Fueling Bronx NY
Generators & Backup Power

Fueling Tall Buildings: How FuelGo Handles Rooftop Generator Refills

How FuelGo refuels rooftop and high-rise generators with jerry cans, 55-gallon drums and long-hose delivery when a truck can't reach the tank.

· 3 min read
Fueling Remote Cell Towers: Emergency Diesel Delivery with 4×4 Access
Generators & Backup Power

Fueling Remote Cell Towers: Emergency Diesel Delivery with 4×4 Access

Emergency 4x4 diesel delivery to a remote Michigan cell tower during a snowstorm. See how FuelGo fuels critical infrastructure fast.

· 2 min read
Worker fueling a tracked excavator from a tank truck's hose on a construction site, with a dozer and generators in the background
Storage & Compliance

Off-Road Diesel Compliance: Dyed Diesel Rules, Inspections and Penalties

Off-road diesel compliance: who may burn dyed diesel, how IRS and state inspectors sample tanks, the $1,000 or $10-a-gallon penalty, and who is liable.

· 18 min read
Used motor oil draining into a catch pan
Diesel Fuel

What Is Black Diesel? Uses, Legality & How It Differs from Dyed Diesel

Black diesel is fuel made from recycled waste oils, not red or dyed diesel. What it is, where it's legal, and what commercial operators use instead.

· 6 min read
Fuel Pump Replacement Cost
Fuel & Fleets

Fuel Pump Replacement Cost: What You Need to Know

Discover the world of fuel pump replacement cost so that you remain equipped with all the information when dealing with your engines.

· 3 min read
fuel supply agreement
Storage & Compliance

Understanding Fuel Supply Agreement: An Essential Guide

It is important to understand your fuel requirements therefore read along to understand the Fuel supply agreement meaning completely with Fuel Go.

· 3 min read
premium fuel
Fuel & Fleets

Learn to know which fuel is known as the “premium fuel”

Premium fuel is essential for high-performance engines. Learn its usage, importance, and where to buy it. Power up with premium fuel today!

· 3 min read
Biodiesel vs Diesel
Diesel Fuel

Biodiesel vs Diesel: Understanding Differences

Biodiesel vs Diesel which one is better and which works the best for what purpose. Understand everything from Fuel Go’s perspective.

· 4 min read
Worker in an orange hi-vis jacket and white hard hat fueling yellow construction equipment from a hose on a job site
Diesel Fuel

Dyed Diesel vs Clear Diesel: Off-Road vs On-Road Diesel, Taxes and Who Can Use Each

Dyed (red, off-road) and clear (on-road) diesel are the same fuel. What differs is tax, who may legally use each, penalties, and how to store both.

· 13 min read
Diesel fuel filter lying on its side with thick yellow gelled fuel oozing out, under the headline What temperature does diesel fuel gel?
Diesel Fuel

What Temp Does Diesel Gel? Cloud Point, CFPP & Gel Point Chart

Untreated #2 diesel clouds at about 6–14°F and gels 6–10°F lower. Gel temps for #1, winter blends, B20 and R99, and which test predicts filter plugging.

· 15 min read
Two test tubes of clear liquid with a pink layer settled at the bottom, beside the words Water in Diesel Fuel?
Diesel Fuel

Water in Diesel Fuel: Causes, Damage, Testing & Removal

Water in diesel fuel corrodes injectors, plugs filters and feeds microbes. Where it comes from, the ASTM D975 limit, symptoms, testing and removal.

· 14 min read
What is DEF?
DEF

Clean Diesel? It Is All About DEF!

What is DEF? It is a urea-based solution used in diesel engines to reduce harmful emissions. Learn about its benefits, uses, and importance.

· 4 min read
FuelGo graphic reading How Long Does Diesel Last? Diesel shelf life, beside a white above-ground horizontal fuel storage tank with a ladder
Storage & Compliance

How Long Does Diesel Last? Shelf Life, Storage & Signs It's Gone Bad

Diesel lasts 6–12 months in typical storage, 12+ months cool, clean and dry. Shelf life by fuel, signs diesel has gone bad, and how to make it last.

· 12 min read
What Color is Diesel Fuel? Understanding The Shades of Diesel
Diesel Fuel

What Color is Diesel Fuel? Understanding The Shades of Diesel

Diesel is naturally clear to light amber. Red means it's tax-exempt off-road fuel — using it on the road is a federal offense. Full color guide inside.

· 8 min read
White semi truck pulling a silver dry-bulk tank trailer on a highway
Storage & Compliance

How Much Fuel Can You Transport Without Hazmat? Diesel & Gasoline Limits

Diesel in containers of 119 gal or less is outside DOT hazmat rules; gasoline isn't. Limits for cans, drums, totes, transfer tanks and CDL endorsements.

· 17 min read
Semi truck trailer driving through a snowstorm on a Minnesota interstate
Diesel Fuel

How to Prevent Diesel Gelling: Winter Fuel, Anti-Gel Additives and Fixing Gelled Diesel

How to prevent diesel gelling: winter fuel rated for your coldest night, anti-gel added above cloud point, heat, and how to fix fuel that already gelled.

· 15 min read
Power plant smokestacks venting smoke beside a river at sunset, with a red Fuel Contamination label
Storage & Compliance

Diesel Fuel Contamination: Types, Causes, Symptoms, Testing & Prevention

Diesel fuel contamination explained: water, diesel bug, dirt, aging, wax and wrong fuel. The symptoms, how to test a tank, prevention and when to fix it.

· 17 min read
Two blue containerized diesel generator sets on trailers, with exhaust stacks, parked on a concrete pad beside office buildings
Generators & Backup Power

Data Center Generator Fuel: Supply, Storage and SLAs

Data center generator fuel: how much to hold, Uptime and NFPA 110 rules, fuel testing, R99, EPA run-hour limits and what a fuel SLA should cover.

· 13 min read
Delivery hoses connected to the valve manifold of a multi-compartment fuel tank truck parked at a curb
Diesel Fuel

What Is Heating Oil? Heating Oil vs Diesel, Off-Road Diesel and Bioheat

What heating oil is, how No. 2 fuel oil differs from diesel and off-road diesel, why it's dyed red, and what 15 ppm ULSHO and Bioheat blend rules mean.

· 16 min read
Technician in orange hi-vis coveralls working on an open-frame diesel generator set in a warehouse
Generators & Backup Power

Diesel Generator Maintenance: Why Standby Sets Fail and How to Keep Them Ready

Diesel generator maintenance explained: why standby sets fail, NFPA 110 exercise and load bank rules, wet stacking, batteries, coolant and oil intervals.

· 18 min read
Two hands coated in crude oil, cupped above a dark pool of crude
Diesel Fuel

How Is Diesel Fuel Made From Crude Oil? Distillation, Hydrotreating and Yield

How diesel is made from crude oil: distillation, cracking, hydrotreating to 15 ppm ULSD, diesel per barrel (EIA) and how renewable diesel differs.

· 10 min read
Trucks crossing a covered truck scale beside a scale house
Diesel Fuel

How Much Does Diesel Weigh per Gallon? Weight Charts by Fuel, Volume & Temperature

A gallon of #2 diesel weighs about 7.1 lb (3.2 kg). Charts by fuel type, drum, tote and tank size, plus how temperature changes the weight.

· 10 min read
Red Diesel vs Green Diesel
Diesel Fuel

Red Diesel vs Green Diesel: Explore the Fuel Types

Red diesel vs green diesel compared: what each fuel is, where it's used, how it's taxed and regulated, and which one fits your equipment or fleet.

· 5 min read
Two diesel pump nozzles side by side, labeled diesel 1 and diesel 2
Diesel Fuel

Diesel #1 vs #2: Differences, Winter Blends & Which to Use

#1 diesel is thinner and flows better in the cold. #2 has more energy per gallon and costs less. ASTM specs side by side, winter blends and which to use.

· 12 min read
Types of Fuel
Diesel Fuel

Exploring The World of Types of Fuel

From gasoline to bio-diesel, explore advantages, disadvantages, and make informed choices about types of fuel.

· 2 min read
diesel fuel storage
Storage & Compliance

Essentials of Emergency Diesel Fuel Storage and Long-Term Safety

Discover top-quality diesel fuel storage solutions for safe and efficient fuel management with our durable and reliable storage options.

· 3 min read
diesel exhaust fluid
DEF

What is Diesel Exhaust Fluid DEF?

Discover the essential role of Diesel Exhaust Fluid (DEF) and its significance in emission control. Learn DEF fluid meaning, and its use.

· 5 min read
Emergency Diesel Fuel Storage and Long-Term Safety
Storage & Compliance

Emergency Diesel Fuel Storage and Long-Term Safety

Explore insights of emergency diesel fuel into storage duration, factors affecting degradation, and the role of stabilizers.

· 5 min read
Pouring diesel exhaust fluid from a jug with a blue spout into a vehicle's DEF filler
DEF

Does DEF Freeze? Freezing Point, Thawing & Cold-Weather Handling

Yes. DEF freezes at 12°F (-11°C) and expands about 7%. Thawed DEF is fine to use. How trucks handle frozen DEF, and how to store it in winter.

· 9 min read
Two portable fuel polishing carts with pumps, spin-on filters, a canister filter housing and hoses, parked in front of a roll-up door
Storage & Compliance

Fuel Polishing vs Tank Cleaning: What Each Does and Which Your Tank Needs

Fuel polishing cleans the fuel; tank cleaning removes sludge, water and biofilm from the tank. How each works, a symptom guide, and when you need both.

· 13 min read
History Of Fuel Delivery
Fuel & Fleets

History Of Fuel Delivery

How fuel delivery evolved, from horse-drawn deliveries to today's trucks and on-site fueling, and what each era changed for the businesses it served.

· 2 min read
How Your Fleet Can Switch To A Carbon-Neutral Future With FuelGo’s Renewable Solutions
Fuel & Fleets

How Your Fleet Can Switch To A Carbon-Neutral Future With FuelGo’s Renewable Solutions

How fleets cut emissions by switching to renewable diesel without changing their engines, and how FuelGo delivers renewable fuel on site.

· 2 min read
Reefer Fuel Explained: What Is Refrigirated Truck Fueling?
Fuel & Fleets

Reefer Fuel Explained: What Is Refrigerated Truck Fueling?

What reefer fuel is, why refrigerated trailer units can run on dyed off-road diesel, and how on-site reefer fueling keeps cold-chain loads moving.

· 3 min read
What Are The Benefits Of Wet-Hosing Or Fleet Fueling
Fuel & Fleets

What Are The Benefits Of Wet-Hosing Or Fleet Fueling

Wet-hosing fuels your fleet where it's parked. The benefits: no fuel-station trips, less downtime, better fuel tracking and lower fueling costs.

· 2 min read
Free tools

Run the numbers before you call.

Size a tank, estimate generator burn and plan DEF consumption in a minute.