Optimum No Rinse Wash and Shine Version 5 (ONR), 32 Oz Review (2026)

What Optimum No Rinse Version 5 Is

Optimum No Rinse Wash and Shine, known as ONR, is a rinseless car wash concentrate sold here in a 32 oz bottle. Instead of a hose and running water, you mix a small amount of the concentrate into a bucket or two of water, then wash the car with a mitt and wipe the panels dry with a microfiber towel as you go. The formula is built around lubricating polymers that encapsulate dirt particles so they lift away from the paint rather than grinding against it while you wipe. Optimum states it is intended for use on paint, ceramic coatings, glass, and interior surfaces, which makes it a flexible single product for exterior washing and light interior wipe downs rather than a paint only soap.

How to Dilute It

ONR is sold as a concentrate, so the dilution ratio changes depending on what you are doing. For a standard rinseless wash, Optimum's own guidance is roughly 1 oz of ONR per 2 gallons of water, or about 0.5 oz per gallon if you are mixing a smaller bucket. Using it as a clay lube calls for a stronger mix, about 2 oz per gallon of water, so the clay bar glides without marring the paint. For a waterless wash, where you spray and wipe a panel at a time with no bucket at all, the ratio jumps to about 8 oz per gallon. A quick detail spray can also be made by mixing about 2 oz of ONR with roughly 30 oz of distilled water in an empty 32 oz bottle. A measuring cup or small syringe makes it easier to stay consistent.

Where It Performs Best

Because the wash dilution is so lean, a single 32 oz bottle of ONR stretches across a large number of wash sessions, which is a big part of why it is popular with mobile and professional detailers who need to carry less product between jobs. It also suits condo and apartment owners who are not allowed to hose down a car in a parking lot, and drivers in drought prone regions where a full hose wash is discouraged. Owners of ceramic coated vehicles often reach for ONR between full washes since the rinseless method is gentler on a coating than repeated soap and hose cycles, and the same bottle can double as a light interior cleaner in a diluted form.

Version 5 Versus the Newer Version 6

Optimum has continued to refine the ONR formula over roughly two decades, and the company has since released a Version 6 update that it says improves lubricity and leaves more gloss and protection than earlier versions, including this Version 5. Version 5 is still the same core rinseless method that built ONR's reputation, and it remains a fully capable product on its own, but shoppers who specifically want the newest formula should check the listing title carefully, since both versions are sold in the same 32 oz size and can look similar at a glance. If a store is clearing out Version 5 at a lower price, it is not a downgrade in method, just an earlier step in the same formula line.

Tips for Getting Good Results

Rinseless washing works best with two wash media in rotation, one to lay down the diluted ONR solution and lift dirt, and a separate plush or waffle weave towel to blot the panel dry before the solution has a chance to dry on its own. Work in small sections, roughly one panel at a time, and keep folding your mitt or towel to a clean side as it picks up grime. Because there is no running rinse water, avoid letting the product sit and dry under direct sun. Paired with a two bucket habit, even without a Grit Guard insert, ONR gives a wash that is easy on paint while using a fraction of the water a hose wash needs.

Frequently asked questions