Is It Ok To Idle A Diesel Engine?

Early diesel-fueled trucks (from the 1930s) experienced a number of issues. The engine’s design made it difficult to start. The oils were thick and heavy, and the fuel had a tendency to congeal, making it difficult to start the engines, particularly in cold weather. The quality of the fuel was not as excellent, and it was not controlled as it is now.

Fuel engines and technology have vastly advanced over the years, yet for some reason, the old habit of leaving the engine running has persisted.

Myth: Before driving a diesel engine, it must warm up for 5 to 10 minutes at idle or longer, especially on chilly days.

Fact: This is one of the most popular diesel engine misconceptions. Newer diesel engines should be idled for no more than 3 minutes before driving, according to most engine manufacturers.

Allowing an engine to idle causes more damage to it than starting and stopping it. When compared to traveling at motorway speeds, idleing an engine generates twice the wear on internal parts. Idling increases maintenance costs and reduces the engine’s lifespan.

Fuel is one of our industry’s most expensive operating expenses. Idling has a negative influence on us because it increases our fuel and maintenance costs. In a truck, one gallon of fuel is consumed each hour of idling time. The bigger the engine, the more gas it uses. The price of a gallon of diesel is currently over $3.20 and is likely to rise this year. The expense of idling soon adds up with the number of pickup trucks, big trucks, and equipment we operate.

Does idling hurt diesel engine?

Is idling a diesel engine harmful? Idling a diesel engine causes the engine to suffer greater damage than regular running. When a diesel engine is run at a low speed, the internal components are subjected to twice the amount of wear as when it is run at a typical load. This will result in higher maintenance expenses and a reduction in engine life.

This information astounds me. I can’t believe that idling your engine generates twice as much wear. When you consider the amount of idling that occurs in diesel applications, that is just incredible. Do you believe your diesel is on its last legs? See my post on the 10 indications and symptoms of a worn-out diesel engine for more information.

This is why most manufacturers define applications with long idle durations as severe workload and advise a more aggressive maintenance regimen.

Idling really causes carbon to build up in the engine. Mirror glazing in the cylinder walls can also be caused by a large percentage of idle time. When the walls surrounding your pistons have a mirror-like finish, this is known as mirror glazing. More oil will travel by the piston rings, resulting in a high volume of blow-by.

The fact that diesel engines must operate at higher temperatures is the fundamental reason for the damage. A diesel engine requires a very high combustion chamber temperature to complete the fuel burn.

There will be carbon build-up if this temperature is not maintained. Carbon accumulation is accompanied by a slew of other issues. To get the most out of a diesel engine, it must be run under stress. Low idle times help extend the life of your engine.

How long can you let a diesel engine sit?

“Diesel fuel can be stored for six months to a year without substantial fuel degradation if maintained clean, cool, and dry,” according to Exxon. Diesel fuel, according to Chevron, may be stored for more than a year if it is obtained clean and dry from a reputable source and kept dry.

Do diesels need to be driven hard?

The energy required to push you ahead is generated by burning this fuel in a car’s engine. Because diesel is less flammable than gasoline, it must be burned using a technique known as “compression ignition.” To burn diesel, it must be subjected to extreme pressure.

This pressure, which isn’t required in gasoline cars, puts extra strain on the engine and many of its components. What’s the end result? Parts deteriorate more quickly and fail more frequently.

What is a lot of hours on a diesel engine?

Diesel engines can survive between 6,000 and 8,000 hours with good maintenance before requiring substantial repairs. As a result, some diesel engines on boats can endure a long period. Diesel engines are popular among boaters since they are long-lasting.