Quote:
Originally Posted by mnmarcus
Sentra SER,
What's the difference between hot FE and cold FE? (ie, is hot FE 2x more efficient?) Nery's father (-or bro?) saw 5 - 10% increase in FE. I'd assume most driving can't be that influenced by cold start up... unless you took a lot of short trips...
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If you're asking about hot ambient temp fe v. cold ambient fe, I estimate it's ~15-20% between 45 F and 85 F. I can pull 72 mpg on my 10 mile test loop in the Summer on a hot day. That drops to the mid-high 50s in the Winter. Before I was a hypermiler, I owned a 4WD SUV that got 11 mpg in the Summer (55 F) in AK, but 5 mpg in the Winter (32 F).
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Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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