Recently traded my 03 6.0 PSD for an 06 6.0 and will be doing the first oil change soon- Interested to hear input on Motorcraft Super Duty 15w40 vs Mystik JT-8 15w40. Both are CI-4+ rated. Is it a toss-up between the two or does one have an advantage?
Thanks for any comments
__________________ 06Tow Boss F350 DRW/4.30 CC Lariat LB FX4 TS 4X4 6.0PSD
Truth is confrontational: Very few can legally tow what I pull 6.0 Grin 2/26/03- 07/12/12
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