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MDS and oil?

3932 Views 10 Replies 7 Participants Last post by  ricardo
I've read a bunch of posts - here, on Edmunds, and other forums - regarding the multi-displacement system and oil. But I haven't seen an explanation of how the two are related, even after searching, other than a passing mention that one of the criteria/data points in the MDS logic ladders might be the oil pressure. I've seen people advising for/against synthetics, etc. because "it's critical with MDS."

My questions: Does anyone have a definitive answer on how oil selection directly relates to the MDS? For example, if the dealer installs the wrong viscosity, how does the MDS "know" this? Is there a "viscosity sensor" somewhere related to the MDS?

I'm confused... :confused:
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Alsmag said:
I just recently took my car in for its first oil change. I requested that they use synthetic, but the service guy told me that they couldn't due to needing "certain" oil since it was MDS.

I call bullsh*t.

:bs2: .....
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