NO. 14 Poor Fuel Economy: Notes

NO. 14 POOR FUEL ECONOMY (SKYACTIV-G 2.5T) DESCRIPTION AND POSSIBLE CAUSE

14	POOR FUEL ECONOMY
DESCRIPTION	The fuel consumption is high compared to the customer's expectations or the previous fuel consumption.
POSSIBLE CAUSE	NOTE: The perceived poor fuel economy condition has two causes; the vehicle conditions and how the driver uses the vehicle. Especially, it relies heavily on how the driver uses the vehicle. Use of inferior fuel Ethanol blended Lower octane Engine oil malfunction Improper engine oil level Engine oil contamination Improper engine oil viscosity Improper engine compression Ignition system malfunction Improper engine coolant level Improper tire air pressure Improper tires, wheels (large size, irregular size) Improper wheel alignment Improper ATF level Brake dragging Engine operation time is longer than traveled distance Vehicle is driven in congested traffic frequently Vehicle left idling for long periods Amount of fuel injection increases Vehicle is carrying excess items (luggage) Frequent acceleration/deceleration Frequently driving uphill Travel distances are short (engine does not warm up)

POOR FUEL ECONOMY

DESCRIPTION

The fuel consumption is high compared to the customer's expectations or the previous fuel consumption.

POSSIBLE CAUSE

NOTE:

The perceived poor fuel economy condition has two causes; the vehicle conditions and how the driver uses the vehicle. Especially, it relies heavily on how the driver uses the vehicle.

Use of inferior fuel
- Ethanol blended
  - Lower octane
Engine oil malfunction
- Improper engine oil level
- Engine oil contamination
  - Improper engine oil viscosity
Improper engine compression
Ignition system malfunction
Improper engine coolant level
Improper tire air pressure
Improper tires, wheels (large size, irregular size)
Improper wheel alignment
Improper ATF level
Brake dragging
Engine operation time is longer than traveled distance
- Vehicle is driven in congested traffic frequently
  - Vehicle left idling for long periods
Amount of fuel injection increases
- Vehicle is carrying excess items (luggage)
- Frequent acceleration/deceleration
- Frequently driving uphill
  - Travel distances are short (engine does not warm up)