Featured Hybrid MPG Ratings Look Great Until Real-World Driving Gets Involved

I know mine were much higher than the sticker. not sure why that doesn't translate to the test

 

Back in my Prius days, I could get EPA numbers in my benchmarks by holding a cruise control speed of 63-64 mph after warm-up. Since then, I don’t worry about it with my cars.

My favorite technique is to benchmark +10 miles at:

• 30 mph
• 55-60 mph
• 75 mph

Put these three points into a graphing spreadsheet and plot a trend line using a second order polynomial curve. This will generate an accurate (enough) curve of the MPG vs mph.

There is another advanced technique using EPA benchmark, roll down coefficients but quite beyond a short answer.

Bob Wilson