The cleansing effect on injector deposits can raise fuel economy approximately 12% or even greater, depending on the condition of the injectors. SI-1 also contains detergents and a synthetic upper cylinder lubricant which will help clean pollution control valves and can reduce ...The cleansing effect on injector deposits can raise fuel economy approximately 12% or even greater, depending on the condition of the injectors. SI-1 also contains detergents and a synthetic upper cylinder lubricant which will help clean pollution control valves and can reduce octane requirements by two numbers.
SI-1 also protects the fuel system from rust. Use one bottle with a full tank or use in smaller doses for continued maintenance, as SI-1 treats up to 100 gallons. Safe for continual use.