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As mine is forged the dealer advised me to run Castro Edge Supercar
I've also just bought a 20L bottle ready for next few changes 🤣For any Aussie guy's Penrite does a 0w40 that specifically lists LSPI as one of the things that this oil protects against.
Yes, it doesn't technically have the Ford approved spec but it meets everything else.
Been running it in mine for a while without issues (outside of unrelated oil consumption problem anyway 😅)
10 TENTHS PREMIUM 0W-40 (Full Synthetic) | Penrite Oil
I run Motorcraft Full Synthetic 5w50:What oil is everyone using
and how much are you paying at your dealer?