Quote:
Originally Posted by TitanTerry
I was thinking of going every 4K miles with this engine and sticking with Castrol GTX. Is synthetic oil required for this engine?
Thanks
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NO..synthetic is not required in the V6.
I just changed oil & filt. Put in Mobil 1 5W-30 @ 1,200miles and the orig. oil was very dirty (black).
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