NOVELTY - Method of attaining acceptably low uptake of zinc and copper metals in renewable component of distillate boiling range fuel composition involves providing renewable component comprising blending tallow 1-4C alkyl ester feed and soybean oil 1-4C alkyl ester feed and palm oil 1-4C alkyl ester feed, such that tallow 1-4C alkyl ester feed comprises 35-90 vol.% of renewable component; and exposing renewable component blend to a source of zinc or copper under conditions sufficient for copper and/or zinc to leach into the renewable component.    USE - For attaining acceptably low uptake of zinc and copper metals in renewable component of distillate boiling range fuel composition such as distillate boiling range fuel e.g. biodiesel.    ADVANTAGE - The renewable component blend further exhibits a 24-hour uptake of copper of less than 0.7 (preferably 0.55) ppm; a 24-hour uptake of zinc of less than 0.4 (preferably 0.3) ppm; and a 24-hour uptake of copper and zinc of less than 0.8 (preferably 0.6) ppm combined. The diesel boiling range component or diesel fuel composition exhibits at least two of the following characteristics: an initial boiling point of at least 215 degrees F (about 102 degrees C); a final boiling point of greater than or equal to 800 degrees F (about 427 degrees C); T5 boiling point of at least 275 degrees F (about 135 degrees C); and T95 boiling point of greater than or equal to 775 degrees F (about 418 degrees C). The presence of soluble metals in fuel can cause an increase in emissions, decrease in fuel economy, corrosion, and/or loss of torque in a diesel engine, therefore the present method provides a fuel composition, such as a distillate boiling range composition, particularly containing a bio/renewable component, having an acceptably low (or minimized) zinc and copper uptake.    DETAILED DESCRIPTION - Method of attaining acceptably low uptake of zinc and copper metals in renewable component of distillate boiling range fuel composition involves providing the renewable component comprising blending a tallow 1-4C alkyl ester feed and at least one of soybean oil 1-4C alkyl ester feed and palm oil 1-4C alkyl ester feed, such that the tallow 1-4C alkyl ester feed comprises 35-90 vol.% of the renewable component; and exposing the renewable component blend to a source of zinc or copper under conditions sufficient for copper and/or zinc to leach into the renewable component, where the tallow 1-4C alkyl ester feed, by itself, exhibits a 24-hour uptake of zinc of at least 1 ppm and 24-hour uptake of copper of at least 1 ppm, and where the renewable component blend exhibits a 24-hour uptake of copper and zinc of less than 1 ppm combined.