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Lubrizol <br />00000"" <br />11 May 2023 <br />To whom it may concern, <br />RECEIVED <br />JUN 0 2 20`3 <br />LNVIRoi\nr►" FAL ►►L,kUr►L <br />Ut:,pAk :FNIEIN" F <br />Lubrizol conducted blend compatibility storage studies in the laboratory to demonstrate that <br />there would be no adverse effects when the existing Lubrizol gasoline additive, UltraZol° 9888 <br />is mixed with the new Lubrizol gasoline additive, UltraZol° GA9058. We evaluated different <br />blend ratios of UltraZol° 9888 with UltraZol® GA9058. In these blend ratio studies, various <br />ratios of the two products were combined and then monitored in the lab at room temperature <br />(202C or 682F) for a 2 -month period. Visual inspection and photographs were conducted every <br />week for haze, sediment, floc, or separation. During these blend compatibility storage studies, <br />there were no changes in the blends other than color which is attributed to the color difference <br />of each product due to the slight differences in chemical composition that make up the two <br />gasoline additives and is normal. All blend ratio studies were clear. In addition, these blend <br />ratios were also evaluated at -182C (02F) and 02C (322F) for two months and all ratios remained <br />clear and fluid. Studying blends of mixtures at various ratios is common practice for The <br />Lubrizol Corporation and is part of our robust formulating process. <br />declare, to the best of my knowledge and belief, that this statement of compatibility and the <br />information contained herein is true, correct, and complete. <br />Michelle Graf <br />Michelle.graf@lubrizol.com <br />Director of Technology of Fuel Products <br />The Lubrizol Corporation, A Berkshire Hathaway Company <br />