Use deox-C to clear the rust, rinse with water and dry with compressed or warm air gun after treatment. Fill the tank with petrol as soon as you can, if this is not possible, use ferrosol or atom-mac to prevent flash rusting. If deox-C is splashed onto exterior paintwork, this should be wiped away but will not damage the paintwork.


Don't use any coatings on the inside of the tank.