Optimum · Optimum Car Wash Soap; current US bucket-wash instructions
Optimum Car Wash Soap mixing calculator
Scale the documented wash-bucket recipe.
Useful reference amounts
Bucket wash — 0.5 US fl oz / US gal water · 1:256 product:water. These are finished amounts, with approximately additive volumes.
| Finished | Product | Water |
|---|---|---|
| 500 mL | 1.946 mL | 498.1 mL |
| 1 L | 3.891 mL | 996.1 mL |
| 5 L | 19.46 mL | 4.981 L |
Checked application examples
Examples use volume measurements. Water already measured and finished mixture are different starting points.
Bucket wash — 0.5 US fl oz / US gal water
1:256 product:water. 14.79 mL product + 3.785 L water makes approximately 3.8 L.
Use this documented recipe only for the selected application. Amounts are measured by volume.
Source location: Directions / dilution instructions. Bucket-wash directions specify half a US fluid ounce per US gallon water.
Exact product and source
- Product / version
- Optimum Car Wash Soap; current US bucket-wash instructions
- Market
- United States; US fluid ounces and US gallons
- Measurement basis
- Volume. Mixed recipes list product first and water second. Undiluted applications explicitly add no water. US gal and US fl oz are US volume units.
Car Wash Soap — official instructions
Reviewed 2026-10-03.
MixByParts is independent of Optimum. Check the exact local label; formulations and instructions can change.
Application limits
The documented bucket recipe is included; no foam-cannon reservoir rate is inferred.
Follow the manufacturer’s contact-wash and rinse method.