a_tack
Junior Member
As far as I can find only 4 oils meet the MS-12633 spec: Pennzoil Ultra Platinum, Mopar, Amsoil, and Redline. Seeing as those are not readily available in most areas on store shelves in a 0w-40, have any of you experienced any adverse effects from using Castrol Edge or Mobil1 0w-40? I’ve compared the MSDS sheets on all 6 mentioned brands and they all seem pretty close specification wise. I’m sure this has been beat to death, but the search function is not working on my Tapatalk app. My apologies in advance.
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