only getting 16-17 mpg!

I make a trip down to Marietta from Cherokee County NC, on a semi regular basis. I have started looking at the wind direction and speed on the weather app on my iPhone with each trip.. I found that head winds, tail winds, as well as quartering winds do make a 2-3 MPG difference for Miss Daisy.
 
Last weekend, we averaged 22-23mpg on a trip to NC - all interstate at ~78mph.

The EPA city cycle involves spurts of very gradual acceleration and deceleration. That type driving allows a turbo hybrid to “overachieve” given that the turbo is used little in the gradual acceleration and battery charging is facilitated with the gradual deceleration. For these configurations, we tend to see a narrow difference between the city & highway ratings (22 vs 25 for the LC or 17 vs 20 for your 110 P400) and that should warn us of the potential shortfall against the city rating that we might experience when we drive “normally”.

Sometimes I average 16-17 in the city; other times, I can average 21-22. It really depends on the terrain and the flow of traffic.

I believe the LC performs very consistent with its intended design - ie high levels of torque with a minimal hit on fuel economy. I didn’t buy the LC for its fuel economy.
 
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I make a trip down to Marietta from Cherokee County NC, on a semi regular basis. I have started looking at the wind direction and speed on the weather app on my iPhone with each trip.. I found that head winds, tail winds, as well as quartering winds do make a 2-3 MPG difference for Miss Daisy.
I also believe tire pressure has made a difference for me (1958 w OEM tires and approximately 10k miles). I tend to run at about 35psi (coldish but not ice storm cold) and get better economy than when I allow the psi to drop to 32-33.
 
Cool. I’ll tell Car and Driver they were off by more than 10% in their testing.
It is not like Car and Driver is using a standardized test under controlled conditions. It is just another data point.
 
With all these reports I am curious does anyone manual compute their mileage or just trust the gauges? I have always found Toyota MPG/range estimates to be low. On my 2010 4-runner usually off by as much as 3 mpg. So far on my LC250 best the gauges show on trips is 20.6. However filling up before and after trips I am seeing 24 to 23. These are all highway interstate trips of 150 to 225 miles. My process:
Fillip before write down current mileage, fillup after write down mileage or read trip meter. Fillup and divide total distance by gallons.
It’s colder here than normal so not expected best MPG.
Paul
I do the math in my fill ups. I post in this thread occasionally
Post in thread 'Does anyone actually get the posted 22/24 mpg?' Does anyone actually get the posted 22/24 mpg?
 
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