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Old 05-19-2019, 11:00 PM   #7 (permalink)
prr
EcoModding Lurker
 
Join Date: Oct 2015
Location: CA
Posts: 31

Highlander - '06 Toyota Highlander Limited 4WD
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So you're suggesting that this isn't a valid sample.... OK I'll (hopefully) find sufficient reason to go on a more extended freeway trip that will give me a more true figure.


Quote:
Originally Posted by Vman455 View Post
You've got a short fill on one freeway trip--don't sweat it. There's so much margin of error here that it's impossible to say what's responsible. It could be any combination of:

-pump error
-tank error from the short fill
-weather: temperature, wind speed and direction (huge source of error just right here)
-traffic
-rate of acceleration/deceleration

People like to complain about the way EPA ratings are determined--but there's a reason it's best to do it on a dyno in a temperature-controlled lab: you remove all these other variables.
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