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    Ask the Expert: American Petroleum Institute

    Oct. 25, 2022

    NOLN sat down with Jeff Harmening, Sr. Program Manager at the American Petroleum Institute to discuss the addition of low viscosity oils to GF-6B and the request for GF-7. 

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    NOLN sat down with Jeff Harmening, Sr. Program Manager at the American Petroleum Institute to discuss the addition of low viscosity oils to GF-6B and the request for GF-7.