Sodium silicatehttp://en.wikipedia.org/wiki/Sodium_silicateSodium silicate is the common name for a compound sodium metasilicate, Na2SiO3, also known as water glass or liquid glass.
Sodium silicate is stable in neutral and alkaline solutions. In acidic solutions, the silicate ion reacts with hydrogen ions to form silicic acid, which
when heated and roasted forms silica gel, a hard, glassy substance.UsesCar engine disablementSodium silicate solution is used to inexpensively,
quickly, and permanently disable automobile engines. Running an engine with two quarts of a sodium silicate solution instead of motor oil causes the solution to precipitate, catastrophically damaging the engine's bearings and pistons within a few minutes.[4] In the United States this procedure is required by the Car Allowance Rebate System (CARS) program.
สรุปว่า เป็นสารที่สร้างความฝืดอย่างแรงให้กับเครื่องยนต์นั่นเอง