Fuel is one of the highest continuous costs of operating a motor grader. Although fuel costs are outside of a contractor’s control, how the machine is operated can have a huge influence on fuel usage on a day-to-day basis. Over time, many operators, without realizing it, get into habits that cause higher fuel consumption, lower machine efficiency, and higher unnecessary operating costs.
There are opportunities to make small adjustments to operating practices to achieve better fuel economy without reducing productivity or the quality of the grading. From a single used motor grader to a whole fleet, recognizing inefficient habits aids contractors in cutting operating costs, maximizing equipment life, and boosting project profitability.
Excessive Engine Idling
One of the main reasons for excessive fuel usage is idling the engine for extended periods of time. The machine is not doing productive work, and it continues burning fuel and adding unnecessary engine hours.
Extended motor grader shutdowns or delays during delays will help to lower fuel usage costs and lower maintenance and wear costs on the grader.
Ways to reduce idle time:
- If you have extended breaks, shut off the engine.
- Set up tasks before operating the machine.
- Use coordination for grading activities with other machines.
- Track Idle Time with Telematics.
- Wait for work to resume before restarting.
Operating At High Engine Speed Unnecessarily
Many operators think that “speed is speed” and the more the better. In practice, overfueling the engine to achieve high RPMs may not be worth the effort, as fuel use may not be reduced substantially enough to compensate for the loss in productivity.
By running the engine in the specified operating range, the motor grader will operate efficiently while minimizing fuel consumption and unnecessary component wear.
Making Too Many Grading Passes
Many times, poor grading techniques will need several passes to obtain the desired surface grading. Each subsequent pass will consume more fuel, wear the machine, and take longer to complete the project.
By adjusting the blades correctly and planning the work carefully, operators can finish grading more efficiently and minimize the need to move the machine.
Ignoring Preventive Maintenance
An unmaintained motor grader will use more fuel due to excessive work being done by the engine and hydraulic systems. Neglected filter changes and bad filters, worn injectors, contaminated fluids, and cooling system neglect all diminish operating efficiency.
By keeping the engine in good condition through regular maintenance, you can expect to enjoy better fuel efficiency, better performance, and avoid expensive repairs.
Maintenance habits that improve fuel efficiency:
- Change Air Filters Regularly.
- Follow the manufacturer’s guidelines for fuel filter replacement.
- Keep proper hydraulic fluids.
- Regularly check cooling systems.
- Adhere to service intervals in accordance with the manufacturer’s recommendations.
Using The Wrong Machine For The Job
The size of the motor grader may be too big or too small for the job, and this can lead to higher fuel usage. Bigger machines may consume more fuel than is needed, and smaller machines may need to run for longer to perform the same task.
The proper size, horsepower, and blade capacity match the project requirements increase productivity and reducing fuel expenses.
Poor Blade Operation
Adjustments of the moldboard and blade angles are not correct, reducing the efficiency of the grading operation. The operators may have to process more material than is needed, or make multiple passes for the desired grade.
The use of the correct blade techniques decreases resistance, increases the grade accuracy, and minimises unnecessary fuel usage during the project.
Unnecessary Machine Travel
Wasted fuel and operating hours are the result of driving a motor grader on the jobsite without being productive. Inadequate planning can lead to unnecessary travel from one work area to another.
Timely grading operations before work will minimize machine travel distance and will maximize machine use.
Planning practices that save fuel:
- Organize work in logical sequences.
- Limit the unnecessary motion of the machine.
- Make materials ready before grading.
- Interpret and coordinate work with other equipment.
- Finish up work in the immediate vicinity before moving.
Ignoring Tire And Machine Condition
When tires have incorrect pressure, tires are worn, or steering components are not adjusted properly, the rolling resistance will increase, and machine efficiency will be lowered. The engine has to run harder to meet these conditions, thus increasing fuel consumption.
These problems can be detected early, and the motor grader can be kept in peak condition through regular inspections.
Failing To Monitor Fuel Performance
Many contractors purchase fuel for their machines, but never consider the efficiency of fuel use for individual machines. Often, inefficient operating practices continue without anyone realising, as there is no monitoring of consumption.
Fuel reports and telematics can help to pinpoint areas where operator performance can be enhanced, idle time can be minimized, and overall operating costs can be cut.
Final Thoughts
Much of the fuel consumption that occurs is preventable through improved operator training, preventative maintenance, and improved jobsite planning. Using the right machine, minimizing passes, keeping engines at the right speeds, and reducing unnecessary idling to improve fuel efficiency.
Whether they’re running a new machine or a used motor grader, daily operating practices can help contractors reduce their fuel costs, wear on equipment, and profitability in the long run.
FAQs
1. What operating habit wastes the most fuel in a motor grader?
One of the most common reasons for fuel wastage is due to excessive idling of the engine.
2. Does engine speed affect fuel efficiency?
Yes. Unnecessary high RPM running will not increase productivity but will increase fuel consumption.
3. Can poor blade operation increase fuel cost?
Yes, much more fuel is used, and additional grading passes are needed in cases of inaccurate blade settings.
