u/Golfgma

▲ 9 r/LexusRX+1 crossposts

MPG confusion

I just filled the tank for the first time on my 2026 NX 350h. The car took 10 gallons to fill up. My odometer reading is 420 miles. So, I calculate that the MPG for that tank of gas was 42mpg (420 miles/10 gallons). But the meter Total Average Fuel Economy shows 33.5mpg. Any idea of why these differ? The car had 3 miles on it when I picked it up from the dealer.

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u/Golfgma — 1 day ago