Search for posts by Dennis Haynes that discuss Mobil 1 and this will be
explained.  You don't have to search any more than the last 6 months,
probably only the last 3 months to find lots of information.

Yes, Castrol is cracked natural oil not true synthetic.

I run Mobil 1 in both my Vans and have for years.

Sam

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Sam Walters

Baltimore, MD