Optimum No Rinse Version 5 Kit (32 Oz) - Rinseless Wash, Towel

In this review the Optimum No Rinse Version 5 Kit is evaluated for everyday owners and detailing hobbyists who want a low-water, low-risk wash solution. The bottom line: this kit is best for people seeking a concentrated, versatile rinseless wash that cleans and protects while minimizing swirl marks thanks to its polymer technology. It pairs the ONR concentrate with the original Big Red Sponge and a plush 400 GSM waffle weave towel so users can perform a near waterless wash or spot-detail without sacrificing finish protection.

Key Features

• Concentrated formula: The ONR Version 5 concentrate requires only 1 oz per 2 gallons of water, allowing a single 32 oz bottle to cover multiple washes and reduce waste.
• Polymer protection: Polymers in the formula encapsulate and emulsify dirt, creating a barrier between contaminants and the paint for safer lifting and reduced abrasion.
• Big Red Sponge (BRS): The original BRS offers a large surface area that helps apply the rinseless solution quickly while reducing contact friction compared with thin, low-density sponges.
• 400 GSM waffle weave towel: The included microfiber towel is plush and absorbent for streak-free drying and gentle removal of residues from sensitive trim and glass.
• Multi-use versatility: ONR doubles as a clay bar or clay mitt lubricant and is suitable for cars, motorcycles, boats, RVs, and aircraft, making it a flexible detailing aid.

Who It's For

The kit is ideal for apartment dwellers, garage detailers, and owners in drought-prone regions who need a reliable rinseless option that still protects clearcoat. It also fits weekend detailers who want a minimal setup: a bucket, a small amount of water, the BRS sponge, and the towel provide a complete small-footprint wash system.

Those who need heavy-duty degreasing or who prefer a traditional high-foaming soap-and-rinse protocol may want to look elsewhere, since ONR is designed as a rinseless, gentle cleaner and not a high-alkaline engine degreaser or heavy tar remover.

Pros & Cons

Pros

• Highly concentrated mix ratio delivers many washes from one bottle, making it cost effective.
• Polymer blend encapsulates dirt, reducing the chance of swirl marks when used correctly.
• Includes the original Big Red Sponge and a high-quality waffle weave towel for a complete kit.
• Versatile product that also works as a clay lubricant and on multiple vehicle types.

Cons

• Not intended as a heavy-duty degreaser; stubborn contaminants may require additional products or detailing steps.
• Effectiveness depends on correct dilution and technique; improper mix can reduce performance.

Specifications

Product	Optimum No Rinse Version 5 Kit
Contents	32 oz ONR concentrate, Big Red Sponge (BRS), 400 GSM waffle microfiber towel
Mix ratio	1 oz per 2 gallons of water
Primary use	Rinseless car wash, detail wash, clay lubricant
Suitable surfaces	Cars, motorcycles, boats, RVs, airplanes
Finish protection	Polymer encapsulation for dirt suspension and lubrication

Our Verdict

The Optimum No Rinse Version 5 Kit is a smart choice for anyone who wants a compact, effective rinseless wash system that reduces water use while protecting the finish. With a concentrated formula, the original BRS sponge, and a plush waffle towel, it offers strong value for owners who follow the recommended dilution and technique.

Frequently Asked Questions

Can ONR be used on all exterior surfaces?
Yes; the product is formulated for paint, glass, trim, and metal and is suitable for cars, motorcycles, boats, RVs, and aircraft when used as directed.

How much water do I need per wash?
ONR works with small volumes; typical rinseless washes use 1-2 gallons of water per bucket mixed at 1 oz per 2 gallons for spot or full vehicle washes.

Is the Big Red Sponge reusable?
Yes; the original BRS is durable and designed for multiple uses when rinsed and allowed to dry between sessions.