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Who runs Spectro?

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I just switched to running spectro 20w-50 from GN4 in my XR. I figured that its made in the USA and they support Anthony Geraci (NETRA Enduro/Harescramble God), so I would support them. Who else runs it?

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I prefer Maxima Extra, Ester Synthetic. As I recall, several of Spectro's oils are ester synthetic blends (?????). Pick one of those...........

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