New Hot Rod Fuel Tank

[NAZ]

If the tank is bare steel (no corrosion preventative coating) expect it to rust and in dusty & high humidity areas, expect it to start sooner than later. All petroleum fuels are susceptible to microbial contamination, including gasoline. Microbes (found in soil & dust) are corrosive and will eventually eat through common coatings like zinc and cad. Gasoline is frequently blended with alcohol which is corrosive and has an affinity for water and water vapor in the air space above the fuel. These things just help the rusting process.

Even OEM tanks and fuel lines that are zinc coated can corrode. And for those that own diesel powered cars and trucks, it's especially a problem as that fuel tends to be easily contaminated with microbial growth. The "bugs" quickly multiply exponentially and during their life cycle bugs die off and their bodies become acidic when they decay which eats away the protective coating. The slime resulting from microbial contamination clogs fuel filters and injectors. Condensation in the tank acts as an oxidizer and the rust begins. You do treat your diesel fuel with a biocide every year, right?