D->N coast downs are 100% fine and will not hurt your trans. Just make sure you don't push it to reverse!!!
DFCO, not that I am aware of on manumatics, you're prob best off neurtral coast downs or EOC.
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'97 Acura CL 2.2L 5spd
'03 Honda CR-V 2.4L EX 4wd Auto
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