Question about 1999 Grand Marquis

Just wondering... The car has a fail-safe cooling system, and according to the manual what it does is alternate between cylinders pumping air into the engine block. Nice idea, but couldn't they adapt that system
for everyday use? I mean it's not like it needs all 8 cylinders at cruising speed on the highway anyways. It would have a 4-banger economy on highways, but higher power when needed.
Kinda like Chrysler's system. it would help milleage...
Just a thought...

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