Salt Wash is a concentrated salt-removal detergent designed to dissolve and wash away salt, mineral deposits, road grime, and light dirt from vehicles, boats, PWCs, trailers, caravans, and marine equipment. The pH-neutral formula cleans while helping protect against the long-term effects of salt corrosion, making it ideal for regular maintenance after beach, coastal, or off-road use. Safe for paint, gelcoat, glass, plastics, rubber, chrome, aluminium, stainless steel, and ceramic-coated surfaces, Salt Wash leaves your vehicle clean, fresh, and protected after every wash.
Outboard & PWC Engine Flush Detergent
Outboard & PWC Engine Flush Detergent
4.8 / 5.0
286 Reviews 286 total reviews
4.8 / 5.0
286 Reviews 286 total reviews
The industry standard for internal engine care. Salty Captain’s Engine Flush is a lab-tested, high-performance formula designed to neutralise salt and remove mineral deposits from your vessel's cooling and exhaust systems. It is the ultimate insurance policy against internal corrosion, ensuring your motor runs cooler and lasts longer.
The industry standard for internal engine care. Salty Captain’s Engine Flush is a lab-tested, high-performance formula designed to neutralise salt and remove mineral deposits from your vessel's cooling and exhaust systems. It is the ultimate insurance policy against internal corrosion, ensuring your motor runs cooler and lasts longer.
DETAILS
PRODUCT OVERVIEW
Salt Wash is a concentrated salt-removal detergent designed to dissolve and wash away salt, mineral deposits, road grime, and light dirt from vehicles, boats, PWCs, trailers, caravans, and marine equipment. The pH-neutral formula cleans while helping protect against the long-term effects of salt corrosion, making it ideal for regular maintenance after beach, coastal, or off-road use. Safe for paint, gelcoat, glass, plastics, rubber, chrome, aluminium, stainless steel, and ceramic-coated surfaces, Salt Wash leaves your vehicle clean, fresh, and protected after every wash.
WHAT YOU GET
SPECIFICATIONS
1L Bottle
- High-concentration formula.
- Lab-tested excellence for superior corrosion protection.
Targeted Internal Action
- Cooling System: Clears salt from narrow water galleries and jackets.
- Exhaust System: Helps prevent corrosion in manifolds and risers.
- Non-Metal Leaching: Specifically engineered to be tough on salt but safe for raw metals.
Compatibility
- Safe for all major marine brands (Yamaha, Mercury, Sea-Doo, Kawasaki, etc.).
- Safe for impellers, gaskets, seals, and rubber hoses.
Advanced Features
- Efficient contaminant and mineral scale removal.
- Promotes long-lasting engine performance.
- Proudly Made in Australia.
FAQ
What does Outboard & PWC Engine Flush do?
Outboard & PWC Engine Flush removes salt deposits from your engine's cooling system while helping reduce corrosion and mineral build-up, keeping your engine clean and performing at its best.
Can I use it in any flushing device?
Yes. It can be used with the Salty Captain Captain's Musket or any compatible outboard or PWC flushing device that introduces detergent into the cooling system.
Can I use it on both outboards and PWCs?
Yes. The formula is suitable for both outboard and personal watercraft engines. Always follow the engine manufacturer's recommended flushing procedure, as the flushing sequence differs between outboards and PWCs.
How often should I flush my engine?
For the best protection, flush your engine after every saltwater use to minimise salt build-up and help extend the life of the cooling system.
Can I leave the product inside the engine?
No. Always complete the flushing process with a fresh water rinse before shutting down the engine, following your engine manufacturer's recommended procedure.
Will it remove existing corrosion?
No. The product is designed to help remove salt deposits and reduce future corrosion. It will not reverse corrosion that has already occurred.
Can I use it on inboard engines?
This product is specifically formulated for outboard and PWC cooling systems. For inboard engines, only use if the flushing system and engine manufacturer approve this type of flushing method.
Do I need to flush with fresh water first?
No. When using the Captain's Musket, begin on the Fresh Water setting, switch to Flush to introduce the detergent, then return to Fresh Water to rinse the cooling system before completing the manufacturer's shutdown procedure.
SHIPPING & DELIVERY
This item is classified as a general shipping item. General shipping items over $170 qualify for FREE SHIPPING Australia-wide.
Location & Pickup:
Orders are dispatched from our warehouse at 2/14 Thomas Hanlon Court, Yatala, QLD 4207. Local pickup is available. Select “Pickup” at checkout.
Dispatch Time:
Orders are typically dispatched within 1–3 business days. You’ll receive tracking details and contact information from the carrier regarding delivery.
Delivery Times (Australia):
- Metro Areas: Standard 2–5 business days
- Western Australia & Northern Territory: 6–12 business days
International Shipping:
International shipping is calculated at checkout. Bulky items may incur additional shipping charges.
Carriers:
We use Australia Post and Aramex to ship across Australia.

HOW IT WORKS
REAL REVIEWS. REAL CUSTOMERS
The freshest reviews are in
- MDMichael D.Verified BuyerReviewingWash & Flush 5L Refill KitI recommend this productRated 5 out of 5 stars6 months agoA long time user
I am a long time user of the engine flush, its works amazing
Incentivized reviewThis review was received as part of a promotion or in exchange for an incentive. The incentive was offered to both positive and negative reviews.Was this helpful? - JDJohn D.Verified BuyerReviewingCaptain's Rescue BoxI recommend this productRated 5 out of 5 stars1 year agoThe love boat
This product put the lovin back into boat day! Cleaning up after a day on the ocean was quick and easy….
Incentivized reviewThis review was received as part of a promotion or in exchange for an incentive. The incentive was offered to both positive and negative reviews.Was this helpful? - SDShane D.Verified BuyerReviewingSalt Wash DetergentI recommend this productRated 5 out of 5 stars1 year agoCpt Salty Salt Wash Detergent
After spending a week by the beach, my car was covered in salt spray. Following the user instructions, I applied the detergent using the Salty Gun and found it to be a brilliant product. It washed off all the salt crystals and after using it as well as the other products my car shone like it was brand new.
Incentivized reviewThis review was received as part of a promotion or in exchange for an incentive. The incentive was offered to both positive and negative reviews.Was this helpful? - SCShawn C.Verified BuyerReviewingSalt Wash DetergentI recommend this productRated 5 out of 5 stars1 year agoCustomer service experience
I recently ordered some salt wash detergent 4 bottles came, but the box had a lot of damage and two bottles were leaking I contacted customer service via email within a couple minutes. they responded and said they would re-ship the items immediately. I received them in 2 days. Great customer service and a great product.
Incentivized reviewThis review was received as part of a promotion or in exchange for an incentive. The incentive was offered to both positive and negative reviews.Was this helpful? - STSheryl T.Verified BuyerReviewingSalt Wash DetergentI recommend this productRated 5 out of 5 stars1 year agoSalt wash
This and all your products are amazing and easy to use. 10 out of 10
Incentivized reviewThis review was received as part of a promotion or in exchange for an incentive. The incentive was offered to both positive and negative reviews.Was this helpful?
Related Products
The Outboard & PWC Engine Flush Detergent works great with these products:
Enhance your engine's longevity and performance with Salty Captain's Engine Flush. This Australian-made solution effectively removes sand, salt, and debris from your raw water cooling system, all while preventing corrosion and metal leaching. Trust in our lab-tested formula for a smoother, more efficient engine.




