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2k S4 -> RE: tips and suggestions for the new 2.7t owner (6/8/2007 2:32:27 PM)
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quote:
ORIGINAL: Costner Mobil 1 isn't a full synthetic? The shop said the use Mobil oil and they would use a synthetic since I have the 2.7T but I never asked for additional detail and I really would prefer to use a full synthetic. However, by looking at the Mobile site, I came across this FAQ: quote:
Yup, it's not real full synthetic anymore. M1 sued Castrol a little while ago, over what a synth oil is, so they changed the definition. It's not called a syth, but only has Grp III oil in it, & not even one drop of PAO, Easter or GRP IV. It's a quality oil, but not a synthetic. We have talked about this in great lengths before, if you do a little search, you will come up on the links, & oil analysis test.
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