What are your tricks? - Toyota Yaris Forums

BailOut · 10-22-2008, 02:24 AM

Nate,

On modern, small engine, fuel injected vehicles such as the Yaris the wear and tear and fuel usage of a warm start is equivalent to just 7 seconds of idling. This means that if you will spend more than 7 seconds coasting into and then sitting at a light (or just sitting at a light if you have the AT) it is easier on the vehicle to be turned off and then restarted.

Mike b,

The Yaris consumes 0.2 GPH at an unencumbered idle. While that may not sound like much if you think about how much time you spend idling over the course of a full tank it becomes a significant factor in your overall mileage.

eco,

Several folks on this site with ScanGauges have done extensive testing in the past and we all found the same thing: In the Yaris it is always more efficient to have the windows down than to use a/c, regardless of speed. Unfortunately that thread was lost in the hack.

As for the heater the Yaris does have coils for producing heat on a cold start. Once the coolant temperature reaches a threshold the coils deactivate. Using the heater does affect mileage, by the way, although much less so than using a/c. It steals heat from the coolant and this causes the ECU to run a richer fuel map in an effort to produce more waste heat to reheat it.

10-22-2008, 02:24 AM	#15
BailOut Steals terrorist's lunch View User's Garage Drives: 2007 Yaris Liftback Join Date: Mar 2007 Location: Reno, Nevada, USA Posts: 1,299	Nate, On modern, small engine, fuel injected vehicles such as the Yaris the wear and tear and fuel usage of a warm start is equivalent to just 7 seconds of idling. This means that if you will spend more than 7 seconds coasting into and then sitting at a light (or just sitting at a light if you have the AT) it is easier on the vehicle to be turned off and then restarted. Mike b, The Yaris consumes 0.2 GPH at an unencumbered idle. While that may not sound like much if you think about how much time you spend idling over the course of a full tank it becomes a significant factor in your overall mileage. eco, Several folks on this site with ScanGauges have done extensive testing in the past and we all found the same thing: In the Yaris it is always more efficient to have the windows down than to use a/c, regardless of speed. Unfortunately that thread was lost in the hack. As for the heater the Yaris does have coils for producing heat on a cold start. Once the coolant temperature reaches a threshold the coils deactivate. Using the heater does affect mileage, by the way, although much less so than using a/c. It steals heat from the coolant and this causes the ECU to run a richer fuel map in an effort to produce more waste heat to reheat it. __________________ - Brian Share the Road I often carry 2 carpool passengers and mountain bikes or snowboards/skis over a 4,500 foot elevation difference. Click the graphic above to see my detailed mileage logs.