Independent testing by the FAA confirms that Exxon Aviation Elite oil contaminated with fine metal particles was in fact within industry specifications. ExxonMobil discovered in August that about 1,100 cases of the 20W-50 oil distributed in early summer had been contaminated by a wearing pump used in the manufacturing process. ExxonMobil alerted its distributors at that time and offered to take back any unsold oil. AOPA contacted ExxonMobil a few weeks ago after reports from members seeing the contaminants in the bottom of oil bottles. At the time ExxonMobil reported that the oil was well within industry specifications and caused no safety or maintenance issues. The independent testing requested by the FAA and AOPA confirmed those findings.
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