This is awkwardly worded: Study the intricacies of Urth, such that your Blockmaker to use 20% less fuel.
Perhaps a word is left out, or something, but that just seems oddly worded. How about: Study the intricacies of Urth, so that your Blockmaker will use 20% less fuel.
OR
Study the intricacies of Urth, which will cause your Blockmaker to use 20% less fuel.