Preserves engine when not in use - enhances engines performance in operation The Guard Fill Diesel keeps valves, injectors and combustion chambers free of carbonisation, reduces friction inside the engine and protects all metal surfaces from corrosion. The special combination of highly effective additives in the Guard Fill Diesel can reduce fuel consumption by up to 3{c40d0227575d48702946add8add17edb2e5934bf35b2c13fab01d1d0b4ad35e3} and emissions by…