Product features: ★ 10% of normal conditions auto fuel economy, car fuel saving effect of oil on the charge up to 25%. 
 ★ hydrocarbons and carbon monoxide emission reduction (exhaust control excessive). 
 ★ reduce internal engine carbon deposits. 
 ★ improve the oxygen sensors and catalytic converters life. 
 ★ does not change the original vehicle wiring harness. 
 Promises: not satisfied with the unconditional installation of a full refund within one month 
 Product life-long service, one year warranty