Diesel Fuel Characteristics

What was the original fuel choice for Rudolph Diesels CI engine?

• Coal Dust

• Peanut Oil

• Kerosene

• Diesel Fuel

A good quality uncontaminated fuel for engines means that fuel is rarely the cause of an engine issue.

• True

• False

What is the term whose meaning is a measure of the ignition quality of Diesel Fuel?

• Octane

• Heating Value

• ULSF

• Cetane Number

How is diesel fuel manufactured?

• Occurs naturally

• waste product of better fuels like gas

• Fractional Distillation

• reverse osmosis

Engine Performance factors which are influenced by the ignition quality of fuel are cold starting, engine warm up, rough running, acceleration, and _______________.

• exhaust smoke density

• easy starting

• running hot

• timing issues

Sulphur has to be added to diesel fuel to give it an odor for safety purposes.

• True because diesel fuel is clear and odorless.

• False, Sulphur occurs naturally in diesel fuel

• True because it is mandated by the EPA

In 1993 the EPA mandated that the Sulphur content of diesel fuel could not exceed ______ PPM.

• 1000

• 1500

• 15

• 500

It has been determined that the reduction of Sulphur in diesel fuel results in _________________________. (Select all that apply)

• lower emissions

• higher emissions

• engine longevity

• high engine wear

Cloud point is __________.

• when it starts to rain

• the point that fuel is to contaminated with water to burn.

• the temperature that crystals start forming in diesel fuel.

• the temperature that diesel fuel ceases to flow.

Pour point is __________.

• when it starts to rain

• the point that fuel is to contaminated with water to burn.

• the temperature that crystals start forming in diesel fuel.

• the temperature that diesel fuel ceases to flow.