Woodznutz
Platinum Member
- Dec 9, 2021
- 26,558
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Just calculated my mileage by coasting (wherever feasible). My Grand Marquis is rated up to 17/25 mpg. My last tank of gas got 19.6 mpg in city only driving. I routinely get 28 mpg on the highway (summer driving). So, I'm getting roughly 3 mpg over the engine's rating in both city and highway driving. Every bit helps especially now.