Posts Tagged: Red spark plug electrode and insulator

What does red tint on spark plugs mean

Using an octane booster additive can cause a red tint on your spark plugs The most common cause of a red tint on your spark plugs electrode and insulator is the use of an octane booster containing Methylcyclopentadienylmanganesetricarbonyl (MMT) in the fuel or iron oxide particles present in the fuel system. Octane booster causes a red tint on spark plug electrodes and insulator discoloration If a fuel additive contains an iron component, it can cause red deposits on the insulator nose, center electrode, and side electrode. The iron coating is … Read More