Originally Posted by JasonY
Something is up with EPA testing and the Tacomas. According to this site:
Throughout the test, a hose is connected to the vehicle's tailpipe and collects the engine's exhaust. The amount of carbon present in what's spewed from the exhaust system is measured to calculate the amount of fuel burned. The EPA claims this is more accurate than using a fuel-gauge to physically measure the amount of gasoline being burned. Still, the final fuel economy figures are adjusted downward, by 10 percent for city driving and 22 percent in highway mileage, to help reflect the differences between what happens in a lab and out on an actual road.
Therefore, our Tacos should be getting real world mileage of AT LEAST what the EPA states (assuming we're careful and not lead-footing it all the time). The most careful among us should get 22% higher mileage than the stickers. Does anyone get that?
It seems the average is 20-20% LOWER than the sticker rating. What's up? Am I reading this right?
My driving is 75% suburban city, 25% highway and I average ~21.5 mpg. I accelerate smoothly but steadily up to speed, use the cruise control on flat ground and coast to a stop whenever possible. When not using cruise control because of hills I do most of my acceleration downhill and settle for losing a few mph when going uphill. I tend to not run the A/C when the temp is 78-80ºF or lower (non-summer mornings on the way to work).
According to EPA numbers and my driving split I should be hitting ~18.5 mpg but instead I get 3 mpg over that or about 16% over the rating. Your +22% certainly sounds achievable... it's likely I could tweak my driving style a bit and up my mileage to 22.5 which would be 22% over EPA. But then I look at the difference... is $1.50 savings per tank worth me stressing during every moment of driving to eek every little bit of mileage out of a tank? Nah, I'm quite happy with what I've got with my normal driving... works for me!