Quote:
Originally Posted by aerohead
https://ecomodder.com/forum/showthre...r-37641-2.html
Technically,at 49-miles,you'd just be warmed up enough to 'begin' testing.It takes that much distance for all the lubricants and temperature-dependent rolling components to reach their ambient-condition stabilization.Without pre-warming,there's so much thermally-related 'noise',you'll never be able to 'see' the 'signal' you're looking for. 
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I agree, however the test road is about 15 miles from my home, so hopefully at least for the direct drive-train, that should not be an issue starting from the similar ambient conditions with a cold car.
I have been aiming for consistency in how I test for that reason. I don't expect everything to jive with extended open-road efficiency.