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ACDelco Regular Dex 6 vs "Full Synthetic" ACDelco Dex 6 ?

2525 Views 5 Replies 3 Participants Last post by  ThunderOne
What is the difference?

"Regular" (?)

"Full synthetic":

The price difference is less than $2. Not sure if any benefit getting the one labeled "Fully Synthetic" or not.

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Wtf was that?

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