Quote:
Originally Posted by Hubert Farnsworth
The Overdrive lock switch has nothing to do with the torque converter locking up, but would prevent access from the over drive gear ranges,
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that is likely true for some cars, but the torque in my Kia, which is probably very similar to the Hyundai, only locks in 4th. If you lock out 4th, you would prevent torque lock up. I don't have a overdrive lock out, but I do have a manual shift mode, and the torque won't lock at all in manual mode. Anyway, I agree that driving with overdrive on is going to be best for FE.
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Almost all my driving is done 1-5 miles at a time.
Best short trip: 2.4 l/100 km, 3.9 km