I recently drove my 420SEL from Kentucky to Louisiana and checking the gas mileage it was 21 to 22. You might want to do better for a longer daily drive everyday, but the comfort is sure there. Good luck in whatever you choose.

Keith D

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1989 420SEL 105575 miles
Pearl Black/Grey

1990 Chevrolet E-Cab C-1500
293,000 miles

1989 Olds Toranado Trofeo'
132,000 miles