I'd also say off while coasting. You get plenty of cooling while gliding and once you restart that cool water gets pumped back into the engine.
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'97 Honda Civic DX Coupe 5MT - dead 2/23
'00 Echo - dead 2/17
'14 Chrysler Town + Country - My DD, for now
'67 Mustang Convertible - gone 1/17
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