The Chassis Flush Solution 1L is built to blast away salt and grime from the chassis rail of your 4WD. Pair it with the chassis flusher (Chassis Grenade) or a complete chassis flush cleaning kit for maximum impact. This powerful chassis flush solution works as an anti-rust chassis cleaner, helping to prevent long-term damage after beach or off-road trips. The Salty Captain chassis flush is your best mate for keeping your underbody clean, protected, and ready for action.
DETAILS
PRODUCT OVERVIEW
Chassis Flush Detergent is a pH-neutral detergent specifically formulated to flush away salt, mud, sand, clay, dirt, and road grime from hard-to-reach chassis and underbody areas. Designed for use with chassis flushing systems and underbody cleaners, the high-foaming formula penetrates deep into crevices to help reduce corrosion and keep your vehicle clean after every adventure. Safe for regular use on 4WDs, utes, caravans, trailers, trucks, and off-road vehicles, it's the essential first step in long-term underbody protection.
WHAT YOU GET
FAQ
What makes Chassis Flush different from a normal car wash?
Chassis Flush is specifically formulated to clean the inside and outside of chassis rails, removing built-up sand, salt, mud and grime from areas that can't normally be reached with a pressure washer.
Do I need the Captain's Musket and Chassis Grenade?
Yes. Chassis Flush is designed to be used with the Salty Captain Captain's Musket and Chassis Grenade. Together they deliver detergent deep inside the chassis rails while simultaneously flushing contaminants from hard-to-reach internal cavities.
How often should I flush my chassis?
If you regularly drive on beaches or in corrosive environments, we recommend flushing your chassis after every beach trip to help minimise salt build-up and reduce the risk of corrosion.
Can I use Chassis Flush on more than just the chassis?
Yes. It's also suitable for cleaning underbody components, suspension, crossmembers and other hard-to-reach areas underneath your vehicle.
Will it help prevent chassis rust?
Yes. By removing salt, sand and moisture-trapping contaminants from inside the chassis, regular use helps reduce the conditions that lead to rust and corrosion. For maximum protection, follow with Salty Captain Chassis Champ.
Can I use it without the Chassis Grenade?
For external chassis cleaning, yes. However, to properly clean inside the chassis rails, the Chassis Grenade is recommended to ensure detergent reaches internal cavities and flushes contaminants effectively.
Can I use it after every beach trip?
Absolutely. Regular flushing after beach driving is the best way to remove salt and sand before they cause long-term corrosion or block drainage points.
Can it remove compacted sand from inside the chassis?
Yes. When used with the Captain's Musket and Chassis Grenade, the rotating jet helps break up and flush out accumulated sand, salt and debris from inside the chassis rails.

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