Daytime / Nightime trips and FE

[catsailor]

My night-time driving is always lower efficiency output then my daytime driving. Makes no difference if its a round trip where I left late afternoon to have dinner with friends and returned at night, a round trip. Seems that having lights on is a drag on my battery's ability to get the charging attention it needs :)

Anyway else see a drop off on FE mpg's at night time.

 

Over all my lifetime (no reset on computer) is now 44 mpg and 96% brake score, +16,000 miles on the odometer to date.

[fotomoto]

I'm the exact opposite.  Night brings cooler temps and, most importantly for me, lighter or no winds.    

 

 

 

 

I have the "ghetto DRL mod" :lol:  that keeps my headlights on during the day but if I try for another 700+ mile tank where anything that can help should be tried, I'll turn them off and see if it helps.

Edited October 20, 2013 by fotomoto

[ptjones]

My testing shows that you do get a 2MPG drop with every 10degree drop in temperature. Other factors like wind, rain, traffic, uphill, downhill, AC etc. can have an effect also.

 

Paul

[fbov]

I see exactly the same sensitivity, 0.2MPG/degree F, before update, at least!

Frank

[fotomoto]

Good points about temperature but at what temp range does one start seeing a decrease?  Below 70?  65?  At seven months in, I haven't experienced anything below 60f at night/mornings while most days are in the 80-100F range.  

[ptjones]

Good points about temperature but at what temp range does one start seeing a decrease?  Below 70?  65?  At seven months in, I haven't experienced anything below 60f at night/mornings while most days are in the 80-100F range.  

I think around 70-80degree range is when the decrease starts, but is not noticeable until probably below 60degrees. I sure noticed it at 50degress yesterday morning. I have had several members inquire about Grill Covers and will be shipping out a few sets shortly. I'm currently testing out LEXAN wheel covers.

Paul