Quote:
Originally Posted by GreenZLE
Highway. I drive a lot for work.
By grandpa had a 1990's Olds 98 and he got 31MPG in that thing!
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People forget how well GM geared the overdrives and final drive ratios in the old 4 speed automatics.
Not only did the full-size H and C-body 3800s routinely get over 30 MPG highway, so did LS1 equipped Corvettes and F-Bodies.
My Dad was from Greenville SC, and when I was a kid we always drove down from Cleveland for a couple weeks in summer in my Mom’s ‘88 Delta 88. Through the ups and downs of the Smokies all along I-77. she always reset the trip odometer when filling up and she routinely got 450+ miles when it was time to fill up at just before the low fuel light came on.