Quote:
Originally Posted by PaleMelanesian
What's your idle gph? Mine's about 0.3. Compare that to the gph of EOC = 0. Now apply that difference to half of the drive that I EOC. It makes a big difference.
Estimated 0.3 * (0.5 hour drive * 1/2 (eoc percent)) = 0.075 gallons
Regular commute = 0.14 gallons (10.5 mi / 75 mpg)
0.14 + 0.075 = 0.215
10.5 / 0.215 = 48.8 mpg if I engine-on-coast instead.  That's a 35% drop! |
Idling GPH and LOD figures. Helga is a TDI, headlights are Xenons, SG2 has been calibrated for gallons ~ 4.54 litres (imperial). Let her idle for 30 secs when already warm to get the figures settled and then idled for another 30 seconds both for lights on and off to let the measures settle.
I didn't do the 30 seconds idle before just an instant on/off which didn't really show anything.
Lights off - LOD varies slightly between 20/21 - mostly 20.
GPH is 0.14-0.15, again mostly 0.14.
Lights on LOD stays at 20/21 but mostly 21.
GPH is still 0.14-0.15 againt mostly 0.15
Thats a 5-8% difference which is worth investigating further. My current tank only has 50 miles on it so I'll avoid the lights as see if it really makes a substantial difference.