Oldcarguy, after a year of using LiquiMoly, I also discovered Mobile 1 0-40 W had the required A40 requirements. I changed to M1 0-40 W for storage and will see how it does in 2018 Spring, summer, and Fall. I've been thinking about trying Amsoil next year but don't know if its worth the significant increase in $
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5280 Cruising @High Altitude
Seal Gray & K&N Filter
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