X5 35D Engine temp log from new thermostats.

[ninja_zx11]

Just sharing my engine temp log from a newly changed thermostats( both engine thermostat and transmission thermostat) created by bmwhat app. Its a city commute with one uphill and downhill.You can see temp dropped little in the middle of graph while driving downhill.

[sgrice]

Nicely done! Looks perfect to my eyes. I saw where you had made a comment over on bimmerfest that your mileage has improved as well. Good job!

[ninja_zx11]

Yes it improved my X5's fuel economy.Now it feels like we were just wasting fuel by running it cool.I am surprised that only a difference of 10-15 deg C in temp can effect fuel consumption.May be DDE is programmed like that to inject extra fuel until 75 deg C.