EPDM bushings vs polyurethane

Have searched and seen positive reviews on both types of engine/trans mounts. However has anyone had or experienced both types? Whst are your thoughts? Opinions? Cp-e claims their EPDM has better resistance to heat but I haven't heard of anyone melting their dog bone poly mounts so perhaps a non issue? They also claim less vibration due to its construction. But is it more of a function of the 60 durometer rating? Just curious if the added cost of EPDM mounts is worth it. Thanks

 

Just ask sure about heat related failure.
It's a factor, however I can't provide specific data or information about it.

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