- Sep 15, 2003
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5,000 miles is coming up, and I already bought a case of Mobil 1 Synthetic, 5W-30 oil, but I was looking over the manual and it said to use Ford Synthetic Blend 5W-20 oil instead. It's much cheaper, and it's what Ford wants us to use. Anyone ever us that kind of oil? Also, is it 100% synthetic or only synthetic blend as the name of the product says? Thanks..