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Trip log for: 1999 Saturn SW2
Trip log index: work to home
  • Avg: 54.92 mpg (US)
  • Max: 62.4 mpg (US) 2010-09-27
Trip date Fuel economy Details
2007-08-08 50 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Rosemead => Roughly 28+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 50.0 MPG, 0.6 Gallons, 191 Water Temp Max, 28.3 Miles, 2140 RPM Max, 0.5 Hours, 62 MPH Max, 48 MPH AVG ---- IAT READING : Hot Air Intake led to Input Air Temp readings of around 110+ degrees F. ---- WEATHER(.com) : 58.5 degrees F, Clear/Fair, 53% Humidity, 41.5 degrees F Dew Point, 30.08 in. Pressure, ---- TIME : ~9:30 PM to ~10:00 PM, ~30 minutes ---- RECENT CAR CHANGES : Car was tuned up with new spark plugs. This is a good "pre-test" benchmark for when I swap in the pulse-plugs. The EFIE is OFF for the duration of the before/after pulse-plug test. ---- HYPOTHESIS : None. This is typical when the weather is hot/dry and the traffic is NOT moving at full speed.
2008-04-06 52 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Rosemead => Roughly 28+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 52.0 MPG, 0.6 Gallons, 195 Water Temp Max, 28.5 Miles, 2211 RPM Max, 0.5 Hours, 62 MPH Max, 50 MPH AVG ---- IAT READING : Hot Air Intake led to Input Air Temp readings of around 110+ degrees F. ---- WEATHER(.com) : 59.5 degrees F, Fair/Partly Cloudy, 66% Humidity, 48.5 degrees F Dew Point, 30.02 in. Pressure, ---- TIME : ~6:00 PM to ~6:30 PM, ~30 minutes ---- RECENT CAR CHANGES : Replaced OEM Radiator at 154,947 miles. EFIE off. ---- HYPOTHESIS : This was a "go home in daylight" run. Because of this, it will be hard to top, even in summer, because I didn't have to drive with the lights on.
2008-06-20 54.1 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Rosemead => Roughly 28+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 54.1 MPG, 0.5 Gallons, 206 Water Temp Max, 28.2 Miles, 1925 RPM Max, 0.6 Hours, 57 MPH Max, 42 MPH AVG ---- IAT READING : Hot Air Intake led to Input Air Temp readings of around 130+ degrees F. ---- WEATHER(.com) : 85.0 degrees F, Partly Cloudy to Clear 35.5% Humidity, 52.0 degrees F Dew Point, 29.82 in. Pressure, ---- TIME : ~7:50 PM to ~8:25 PM, ~35 minutes ---- RECENT CAR CHANGES : Nothing to speak of. Car running well. ---- HYPOTHESIS : Getting into record heat in June (Global Warming?). Also, you can see that all my Scangauge numbers show that I was able to drive slower than my previous record. 42 MPH versus 48 MPH average. Also, weather is hotter and drier.
2008-07-25 52.6 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Rosemead => Roughly 28+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 52.6 MPG, 0.5 Gallons, 195 Water Temp Max, 27.1 Miles, 2326 RPM Max, 0.5 Hours, 63 MPH Max, 49 MPH AVG ---- IAT READING : Hot Air Intake (HAI) led to Input Air Temp readings of around 130+ degrees F. ---- WEATHER(.com) : 70.0 degrees F, Clear, 70.5% Humidity, 59.5 degrees F Dew Point, 29.86 in. Pressure, ---- TIME : ~7:50 PM to ~8:20 PM, ~30 minutes ---- RECENT CAR CHANGES : Nothing special. Antenna Delete and mirror downsize in place. HAI was loose, so I tightened it up, increasing IAT temps by up to 20 degrees F. ---- HYPOTHESIS : None. This is typical when the weather is hot/dry and the traffic is NOT moving at full speed.
2008-08-27 54.1 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Rosemead => Roughly 28+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 54.1 MPG, 0.5 Gallons, 195 Water Temp Max, 28.3 Miles, 2483 RPM Max, 0.6 Hours, 66 MPH Max, 47 MPH AVG ---- IAT READING : Hot Air Intake led to Input Air Temp readings of around 130+ degrees F. ---- WEATHER(.com) : 68.5 degrees F, Partly Cloudy to Foggy 80.0% Humidity, 62.0 degrees F Dew Point, 29.83 in. Pressure, ---- TIME : ~7:45 PM to ~8:20 PM, ~30 minutes ---- RECENT CAR CHANGES : Rear driver's side wheel skirt in test. ---- HYPOTHESIS : August is high MPG time. This matches my previous best, but at +5 MPH, verrry een-tay-rest-ink! This could be the higher humidity or the wheel skirt. Weather is hot but humid.
2008-09-15 53.4 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Walnut Grove => Roughly 27+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 53.4 MPG, 0.5 Gallons, 193 Water Temp Max, 27.6 Miles, 2206 RPM Max, 0.5 Hours, 65 MPH Max, 49 MPH AVG ---- IAT READING : Hot Air Intake led to Input Air Temp readings of around 130+ degrees F. ---- WEATHER(.com) : 73.5 degrees F, Fair to Clear 56.5% Humidity, 55.0 degrees F Dew Point, 29.85 in. Pressure, ---- TIME : ~8:15 PM to ~8:45 PM, ~30 minutes ---- RECENT CAR CHANGES : Nothing to speak of. Rear wheel skirts installed. Car running well. ---- HYPOTHESIS : Didn't break reacord of 54.1, but it was a good clean run, so it's worth adding.
2008-09-30 55.5 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Walnut Grove => Roughly 27+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 55.5 MPG, 0.5 Gallons, 202 Water Temp Max, 27.6 Miles, 2002 RPM Max, 0.6 Hours, 59 MPH Max, 45 MPH AVG ---- IAT READING : Hot Air Intake led to Input Air Temp readings of around 145+ degrees F. ---- WEATHER(.com) : 85.5 degrees F, Fair to Clear 25.5% Humidity, 46.0 degrees F Dew Point, 29.89 in. Pressure, ---- TIME : ~6:50 PM to ~7:25 PM, ~35 minutes ---- RECENT CAR CHANGES : Rear wheel skirts. Car running well. ---- HYPOTHESIS : Super low hot Santa Anas. The driest *ever*. Also, you can see that all my Scangauge numbers show that I was able to drive slower than my previous record. Maybe the rear wheel skirts made the difference!!!
2009-04-20 57.3 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Walnut Grove => Roughly 27+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 57.3 MPG, 0.4 Gallons, 207 Water Temp Max, 26.2 Miles, 2041 RPM Max, 0.5 Hours, 59 MPH Max, 45 MPH AVG ---- IAT READING : Hot Air Intake + grill block led to Input Air Temp readings of around 150+ degrees F. ---- WEATHER(.com) : 80.5 degrees F, Cloudy 20.5% Humidity, 33.5 degrees F Dew Point, 29.90 in. Pressure, ---- TIME : ~7:05 PM to ~7:35 PM, ~30 minutes ---- RECENT CAR CHANGES : New water pump, spring mounted grill block. Car running well. ---- HYPOTHESIS : The weather. Hot as Hades. If not for a morning traffic jam, I would have broken my home-to-work record.
2010-09-27 62.4 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Walnut Grove => Roughly 27+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 62.4 MPG, 0.4 Gallons, 206 Water Temp Max, 26.3 Miles, 1969 RPM Max, 0.5 Hours, 57 MPH Max, 44 MPH AVG ---- IAT READING : Hot Air Intake + grill block led to Input Air Temp readings of around 130+ degrees F. ---- WEATHER(.com) : 88 degrees F, Clear/Fair 22% Humidity, 48 degrees F Dew Point, 29.74 in. Pressure, ---- TIME : ~8:20 PM to ~8:50 PM, ~30 minutes ---- RECENT CAR CHANGES : New pizza pan covers. Car running well at 200K miles. ---- HYPOTHESIS : The weather. Hot as Hades. The numbers compare favorably to my previous record of 57+ MPG. What's the difference? Maybe the wheel covers. The tires need replacing, so they are very LRR right now. There was a slow truck that I milked for great MPG on the 105 East. The car was heavier because it was carrying a load, so maybe it coasted farther. Maybe I'm 15 months better at this. Beyond that, I really don't know.
2013-04-28 57.8 ROUTE : 105 East -> 710 North -> 10 East -> Exit Freeway at Walnut Grove => Roughly 27+ miles ---- NET ELEVATION CHANGE : ~210 feet uphill ---- SCANGAUGE "CURRENT" READINGS : 57.8 MPG, 0.5 Gallons, 206 Water Temp Max, 27.7 Miles, 2088 RPM Max, 0.5 Hours, 61 MPH Max, 50 MPH AVG ---- WEATHER (timeanddate.com) : 74.5 degrees F, Clear/Fair 53% Humidity, 55 degrees F Dew Point, 29.86 in. Pressure, ---- TIME : ~3:12 PM to ~3:42 PM, ~30 minutes ---- Car running well at 244K miles. ---- HYPOTHESIS : Driving off-peak on a Sunday afternoon made for good MPG.



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