Diesel Fuel 101: Here’s Everything You Need to Know
Truckers know diesel fuel, right? You pump it into your rig regularly so you can hit the road and deliver loads. But how much do you really know about diesel? Could you answer questions about diesel’s properties and storage, about what happens to it during cold weather, about how to dispose of it, and even about how to get it out of your clothes?
Consider this a Diesel 101 quiz. If you were to sit in a classroom, could you ace these questions? See if any of these answers surprise you and keep this comprehensive guide for reference. You never know when you’ll need quick diesel info.
Is diesel fuel flammable?
Yes, diesel fuel is flammable with a flash point of 140 degrees Fahrenheit. But diesel has lower volatility and compression-based ignition, so it is less flammable than gasoline.
How long does diesel last?
Diesel fuel typically lasts between 6 to 12 months in storage under the best conditions. However, these factors can affect its longevity:
- Storage temperature
- Exposure to air and moisture
- Presence of contaminants
Does diesel go bad?
Yes, diesel can degrade over time. These signs will tell you:
- Darker color
- Cloudy appearance
- Unpleasant odor
How long can you store diesel fuel?
With proper storage and maintenance, diesel can be stored for:
- 6 to 12 months average
- Up to 18-24 months with ideal conditions and additives
How can you extend diesel storage life?
- Keep it cool (around 70°F)
- Use biocides and stabilizers
- Regularly remove water from storage tanks
What color is diesel?
- Clear to amber for on-road diesel
- Red for off-road diesel (dyed for tax purposes)
How do you get diesel fuel (and smell) out of clothes?
This process is several steps with specific instructions, but here are the basics:
- Pretreat clothes by soaking them in household cleaners
- Use laundry additives to soak up the smell
- Use similar household cleaners to get the smell out of your hands
What temperature does diesel fuel gel?
Diesel begins to gel at temperatures between 10 degrees and 15 degrees Fahrenheit, depending on its composition.
Does diesel fuel freeze?
Diesel doesn’t freeze solid but becomes cloudy and thick (gels) at low temperatures, which can clog fuel filters and lines.
Does diesel evaporate?
Diesel fuel evaporates much slower than gasoline due to its higher boiling point. However, some lighter components may evaporate over time, especially in warm conditions.
Where do you dispose of diesel fuel?
Proper disposal of diesel, just like motor oil and gasoline, is crucial for environmental protection. Try these options:
- Recycling centers
- Hazardous waste collection sites
- Auto parts stores (some accept used fuel)
NOTE: Never pour diesel down drains or on the ground.
How did you do? Did you already know some of these answers? Either way, now you understand diesel better and that knowledge makes your fuel management more effective, whether for just one truck or a large fleet.
