Quote:
Originally Posted by Sulfuric
I've been taking a lot of really short "cold" (in FL) weather trips, and I noticed a serious drop in FE. It's only a guess, because that's all I have, but my gauge is at 60 where is should be at about $100
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Sulfuric,it will be after the holidays before I can put a post together about short trip mpg and temps.
If you have some trip data recorded and can post before this coming Thursday,I'll try and remember my graph and give you some numbers to look at.
When doing my coasts I'm using a non-contact laser pyrometer to record vehicle skin temp,road temp,tire temp,differential temp.As soon as I get the 1-mile to the house,I turn on the National Weather Service TV broadcast to record air temp,% relative humidity,barometric pressure,wind velocity,and direction.
By knowing the dry bulb temp and baro pressure I can calculate the current air density.
If I didn't have the bellypan I'd also be recording the radiator temp, oilpan temp,and transmission temp.
With all this data I'd have a pretty good idea of the environmental factors affecting the coastdown.