Do school buses have diesel engines?
95 percent of all school buses in America are powered by diesel engines because of their reliability, durability and safety. Ultra-low sulfur diesel (ULSD) fuel and advanced technology diesel engines helps these new buses reduce emissions of particulate matter (PM) and hydrocarbon (HC) emissions to near zero levels.
Are Caterpillar bus engines good?
Overall Caterpillar is the unofficial king of diesel engines and it deserves its place as number 3 on the best diesel engine list. Why We Hate It: It’s not that we hate the CAT 3116 it’s that we hate the fact that it’s hard to work on.
How many miles can a diesel bus last?
On average, a clean-diesel school bus can travel about 510 miles on a tank of diesel vs. only 270 miles on gasoline, based on the same standard-sized fuel tanks. Newer engines, like the Detroit™ DD5™ and DD8™ diesel engines, show an additional three percent increase in fuel efficiency.
How long do diesel school buses last?
Some alternatively fueled engines like propane or gasoline may need to be replaced two to three times during the normal lifecycle of a school bus. Clean-diesel engines, on the other hand, are built to last 15-20 years.
How much horsepower is a c7 cat?
Power Rating
| Maximum Power | 300 HP 224 kW |
|---|---|
| Rated Speed | 1800-2200 rpm 1800-2200 rpm |
| Minimum Power | 225 HP 168 kW |
How many horsepower is a Cat c7?
CAT C7 Engine Specs and Technical Data
| Engine Spec | Engine Data |
|---|---|
| Minimum Power | 225 hp, 520 lbs-ft torque |
| Maximum Power | 300 hp, 925 lbs-ft torque |
| RPMs | 1800-2200 RPMs |
| Emissions Ratings | U.S. EPA Tier 3 Equivalent, China Stage II, EU Stage IIIA Equivalent |
What was the cat C7 diesel engine good for?
The electronic configuration was also more robust to offer better fuel management and electronic sensors into the engine. The CAT C7 was really the first heavy duty diesel engine to offer a greatly expanded ECM or electronic computer module.
Are there auxillary heaters in cat school buses?
In combustion engines, heat is equated to waste, and as the engines become more and more efficient (ie, less and less waste) they are all releasing less heat into the coolant system. On our buses (Cat C7s) the Thomas dealer was installed auxillary fuel-fired heaters into the buses.
What kind of air inlet system does cat C7 use?
With the ACERT design the smaller CAT C7 models used an air inlet system with multiple traditional wastegated turbos to boost air intake flow and pressure. The more midsized hp models used only a single turbo while the larger horsepower models used dual turbochargers working in conjunction for optimal airflow.
What are the issues with the cat C7 ACERT engine?
The ACERT technology was prone to numerous regeneration issues. Drivers reported low power and low fuel economy. It was common that the CAT C7 ACERT engines would experience overheating when driving up an incline. The cooling fan does not kick in until 235 degrees Fahrenheit while many drivers reported overheating at 200 degrees Fahrenheit.