The 4WD & RV Wash Detergent (pH 9.5-10.5) is a powerful, high-foaming cleaner designed to break down tough mud, dirt, and grime, while being safe on paint, coatings, and trims for an easy, streak-free clean.
How to use it
Using the Captain’s Musket (Garden Hose Foam & Flush Gun):
Preparation:
- Park your 4WD or RV in a shaded area and ensure the surface is cool.
- Rinse your vehicle thoroughly with water to remove any loose dirt, mud, and debris.
Mixing the Solution:
- Fill the Captain’s Musket reservoir with 4WD & RV Wash. Dilute according to the instructions on the product label for optimal performance.
Foam Application:
- Attach the Captain’s Musket to your garden hose.
- Apply a generous foam layer over your entire vehicle, starting from the top and working your way down. Let the foam sit for 2-3 minutes to break down mud and grime.
Scrubbing:
- Use a soft-bristle brush or wash mitt to scrub the surface, focusing on heavily soiled areas such as the undercarriage, wheel wells, and bumper.
- Rinse the wash mitt frequently in a separate bucket of clean water to avoid reapplying dirt.
- Rinsing:
- Use the Captain's Musket to rinse the vehicle thoroughly with clean water, ensuring all soap and suds are removed.
- Dry your vehicle with a microfiber towel or chamois to prevent water spots and streaks.
Using the BIG LOADS Pressure Washer Foam Cannon:
Preparation:
- Park your 4WD or RV in a shaded area and ensure the surface is cool.
- Rinse your vehicle thoroughly with water to remove loose dirt, mud, and debris.
Mixing the Solution:
- Fill the BIG LOADS Foam Cannon’s reservoir with 4WD & RV Wash, diluted according to the product instructions for a strong cleaning solution.
Foam Application:
- Attach the foam cannon to your pressure washer.
- Spray a thick foam layer evenly over your vehicle, focusing on areas with heavy mud and grime buildup. Let the foam sit for 2-3 minutes to loosen dirt and contaminants.
Scrubbing:
- After the foam has settled, scrub the vehicle with a soft-bristle brush or wash mitt, starting from the top and working down.
- Focus on the undercarriage, wheel wells, and other mud-prone areas.
- Rinsing:
- Use the pressure washer to rinse the vehicle thoroughly with clean water, ensuring all soap and suds are removed.
- Dry the vehicle with a microfibre towel or chamois for a streak-free finish.
FAQ
Using the Captain’s Musket (Garden Hose Foam & Flush Gun):
Preparation:
- Park your 4WD or RV in a shaded area and ensure the surface is cool.
- Rinse your vehicle thoroughly with water to remove any loose dirt, mud, and debris.
Mixing the Solution:
- Fill the Captain’s Musket reservoir with 4WD & RV Wash. Dilute according to the instructions on the product label for optimal performance.
Foam Application:
- Attach the Captain’s Musket to your garden hose.
- Apply a generous foam layer over your entire vehicle, starting from the top and working your way down. Let the foam sit for 2-3 minutes to break down mud and grime.
Scrubbing:
- Use a soft-bristle brush or wash mitt to scrub the surface, focusing on heavily soiled areas such as the undercarriage, wheel wells, and bumper.
- Rinse the wash mitt frequently in a separate bucket of clean water to avoid reapplying dirt.
- Rinsing:
- Use the Captain's Musket to rinse the vehicle thoroughly with clean water, ensuring all soap and suds are removed.
- Dry your vehicle with a microfiber towel or chamois to prevent water spots and streaks.
Using the BIG LOADS Pressure Washer Foam Cannon:
Preparation:
- Park your 4WD or RV in a shaded area and ensure the surface is cool.
- Rinse your vehicle thoroughly with water to remove loose dirt, mud, and debris.
Mixing the Solution:
- Fill the BIG LOADS Foam Cannon’s reservoir with 4WD & RV Wash, diluted according to the product instructions for a strong cleaning solution.
Foam Application:
- Attach the foam cannon to your pressure washer.
- Spray a thick foam layer evenly over your vehicle, focusing on areas with heavy mud and grime buildup. Let the foam sit for 2-3 minutes to loosen dirt and contaminants.
Scrubbing:
- After the foam has settled, scrub the vehicle with a soft-bristle brush or wash mitt, starting from the top and working down.
- Focus on the undercarriage, wheel wells, and other mud-prone areas.
- Rinsing:
- Use the pressure washer to rinse the vehicle thoroughly with clean water, ensuring all soap and suds are removed.
- Dry the vehicle with a microfibre towel or chamois for a streak-free finish.
- Is 4WD & RV Wash safe for my vehicle’s paint?
Yes, 4WD & RV Wash is safe for all vehicle surfaces, including paint, metal, plastic, and rubber. It’s designed to clean effectively without causing damage. - Does it provide rust protection?
Absolutely! 4WD & RV Wash is formulated with anti-rust and corrosion inhibitors to protect your vehicle from the harmful effects of salt, water, and mud. - Can I use this product in a foam cannon or foam gun?
Yes, 4WD & RV Wash works excellently in foam cannons and foam guns, providing thorough coverage and easy application. - How often should I wash my 4WD or RV with this product?
For best results, wash your 4WD or RV after every off-road adventure or long trip, especially if exposed to mud, salt, or other harsh elements. - Is this wash effective on heavily caked mud?
Yes, 4WD & RV Wash is designed to be aggressive on tough mud and grime, making it ideal for heavily soiled vehicles.
Will this product affect wax or other protective coatings?Over time, 4WD & RV Wash may degrade wax coatings, so you should expect those to diminish after several washes. However, it is safe to use on nano coatings.
Shipping & Delivery
Location: Our warehouse is located at 2/14 Thomas Hanlon Court, Yatala 4207.
Free Shipping: All Australian orders over $170 qualify for free shipping*
Flat Rate Shipping: For orders under $170, we offer a flat rate shipping fee of $9 within Australia*
*International orders will be required pay for up-to-date shipping charges, calculated at checkout. Bulky items incur additional shipping charges, calculated at checkout.
Shipping Carriers: We use Australia Post and Aramex within Australia.
Dispatch Time: Orders are typically dispatched within 1-3 business days.
Delivery Times:
Australia:
- Metro Areas: Standard 2-5 business days & Express 1-3 business days
- Western Australia & Northern Territory: 3-7 business days & express 2-3 business days
International:
- Express: 5 business days
- Standard: 7-10 business days
Pickup: Local pickup is available from our warehouse at 2/14 Thomas Hanlon Court, Yatala 4207. Please select the "Pickup" option at checkout.
Possible Delays: Occasionally, shipping may take an extra day or two. If your order takes longer than expected, please feel free to reach out to us at admin@saltycaptain.co.

REAL REVIEWS. REAL CUSTOMERS
The freshest reviews are in
- PPhillipVerified BuyerI recommend this productRated 5 out of 5 stars4 months agoEasy to use
Great product, helps get dirt off so easily
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? - RERD E.Verified BuyerI recommend this productRated 5 out of 5 stars4 months ago1st run of the 4wd & RV wash
I wanted to give this wash a run without having to touch the ute with a sponge. super easy application though I'd love to know how much to actually use in the salty caption foam cannon because I wasn't able to achieve a marshmallow foam. in saying that I left the wash to do its work for a phew minutes then hit the ute with my pressure washer. the wash definitely pulled away all the dirty marks from all the rain we've had and hasn't affected the drip dry and final touch coating I already had put down. decent beeding and no streak marks once dry. once I know the correct mixture I will be super happy and will use it alongside salty captains salt wash.
Was this helpful? - SMScott M.Verified BuyerI recommend this productRated 5 out of 5 stars4 months agoAwesome product
Absolutely love using the salty captain products.
Can't compare to anything I've used previously.
Was this helpful? - TGTrent G.Verified BuyerI recommend this productRated 5 out of 5 stars4 months agoGood little all rounder 💪🏽
I nearly have the whole Salty Captain collection now, I’ve always used the normal car was which is good, but just received my 5L 4x4 rv wash and I love it! I’ve used it a few times now, it has a good foam up and easily removes whatever you can throw at it. Use on both my rc collie and np with the Salty Captain Drip Dry 👌🏽
Was this helpful? - SScottVerified BuyerI recommend this productRated 5 out of 5 stars4 months agoGreat product with a pressure washer
Combined this with a karcher foam cannon/pressure washer, makes cleaning a breeze.
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?
