CLEP literature tests - 6 credit or 3 credit

[ConqueringCollege]

According to ACE, the American Literature, English Literature, and Analyzing and Interpreting Literature CLEP tests are recommended for 3 credits each.  TESU on their equivalence page says that these are 6 credit exams and doesn't mention the optional essays.  Is that with or without the essays? Do COSC, Excelsior, or WGU give 6 credits for these CLEP exams or do they follow ACE recommendations?  Do they give 6 credits only if you complete the essay portion?  We are some distance from a CLEP center and these CLEP exams wouldn't be worth the driving time if they are only 3 credits each.
Thank so much for your help!