NOVELTY - A bio-1-alkene product, comprises: at least one bio-1-alcohol and at least one desired catalyst, and is produced by a method (M1) involving heating bio-1-alcohol in presence least one desired catalyst and at least one purge gas which controls dwell time and temperature at a rate of about 0.01 to 1.0 per mass of the catalyst/hour to produce bio-1-alkene product.    USE - The bio-1-alkenes e.g. bio-1-butene products are useful in preparing high flashpoint diesel; biolubricants (Claimed) and jet biofuels which are useful to civilian and military applications.    ADVANTAGE - The bio-1-butene can be utilized to make drop-in diesel and jet biofuels as well as biolubricants in an energy manner. Thus giving instant access to the conversion of bio-1-butanol including small to large amounts of water, to bio-1-butene with high selectivity and chemical conversion. The bio-1-butene in turn is useful in preparing products that are environmentally beneficial and reduce green house gases compared to petroleum equivalents. The catalyst system used in present method leads to high regiochemical dehydration of 1-bioalcohols including water and retains selectivity with extended time on stream (TOS). Hence, dehydration of bio-1-butanol leads to bio-1-butene in better than 95% chemical yield and 92-99% selectivity for bio-1-butene with at least one catalyst charge can be used continuously for 1-12 months and show no decrease in selectivity for the terminal bio-1-olefin.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following    (1) a bio-alkene fuel precursor produced by the method (M1);    (2) a bio-1-alcohol dehydration catalyst (C1), comprising: at least one inorganic solid support; a basic aqueous solution, where the inorganic solid support is subjected to a first treatment with basic aqueous solution; at least one first inert gas or air, where the base treated inorganic solid support is dried under a heated stream of air or inert gas, and the first base treated inorganic solid support is treated with at least one organosilane diluted in at least one hydrocarbon solvent; and at least one second inert gas or air, where the second treated inorganic solid support is heated and dried under second air or an inert gas; and    (3) a method for making bio-alkenes utilizing the catalyst (C1).