Quote:
Originally Posted by MIAdragon
I think DJ is right here. The difference in parasitic loss is what 18% for an auto and 15% for manual, that measly 3% is easily made up by a computer controlled trans. This argument was true 25 years ago when the auto's were power glides and TH400's. Today's autos are VERY efficient, If manuals truly were more efficient you would see them in cars like the Prius that ONLY come in an auto.
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Right.
At best, it's a completely negligible difference that's almost entirely offset by the fact that people aren't machines and if they aren't timing their shifts perfectly, they give back whatever mechanical gains they may make up.
In the real world, automatic transmissions have become so advanced that they have overcome the mechanical simplicity of the manuals.