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02. Is it possible to evaluate product quality from color of smell?
Modern engine oils are designed using synthetic components free of any odor and are absolutely translucent and colorless. Odor and color of the finished product is determined by additive package type blended in the base oil. Even identical application lubricants may contain different additive packages, therefore odor and color may vary as well. Therefore, quality of the product can be determined exclusively by specialized laboratory.