Wheel and engine degreasing is one of the highest-product-consumption tasks in a production detail shop. Every vehicle that comes through gets the wheels hit — and for fleet vehicles, heavy-use commercial vehicles, and anything that has not seen a thorough wash in months, the brake dust and road grime buildup requires a real degreaser, not a diluted APC. Buying that degreaser in individual 32 oz bottles for a shop that does 15 vehicles a day means constant reorder cycles and retail pricing on a professional consumption rate.
Purple Rush 5 Gallon is the correct format for shops and fleet operations where degreaser use is a daily constant. The concentrated formula is decanted into working spray bottles at the appropriate dilution for the task, and the 5-gallon pail provides enough product to cover weeks of production work before the next reorder. The purple color is a visual indicator of concentration — useful when mixing dilutions for different cleaning tasks.
What Purple Rush Is
Purple Rush is a concentrated alkaline degreaser supplied in a 5-gallon pail. It is formulated for heavy petroleum contamination, brake dust, road film, and grease on wheel, wheel well, engine bay, and underbody surfaces. The purple color of the concentrate provides visual dilution indication and has become the recognizable format of this product line.
Key Features and Why They Matter
- Concentrated alkaline formula — high-strength degreasing action at working concentration. So what? Effective on the heavy contamination that lighter cleaners require multiple applications to address.
- 5-gallon production format — bulk purchasing for high-volume degreaser use. So what? Dramatically lower per-ounce cost than quart or 32 oz purchasing for operations using degreaser daily across multiple vehicles.
- Purple color visual indicator — distinctive color at full concentration, lightens with dilution. So what? Visual confirmation of dilution ratio when mixing working solutions from concentrate into spray bottles.
- Wheel, wheel well, and engine application — formulated for the contamination types in these areas. So what? One degreaser product handles the high-contamination tasks in an exterior detail without switching chemistry between wheels and engine work.
What This Is NOT For
Purple Rush is a heavy alkaline degreaser — it is not formulated for use on painted exterior body panels, clear-coated trim, or finished painted wheels. Use on unpainted and chemical-tolerant surfaces: bare metal, plastic wheel wells, engine components, concrete. Protect painted surfaces from degreaser contact and rinse thoroughly after use. Not for aluminum brightening — that requires acid-based chemistry rather than alkaline degreaser. Always use with appropriate PPE — chemical-resistant gloves and eye protection.
Who Uses This
Detail shops performing wheel and engine degreasing on every exterior detail. Fleet maintenance operations cleaning wheels and undercarriages on commercial vehicle fleets on regular service schedules. Mobile detailers who pre-fill spray bottles from a central supply pail for mobile operation. Truck wash operations cleaning heavy-duty truck wheels and wheel wells where brake dust accumulation is extreme. Reconditioning facilities cleaning acquired vehicles before retail preparation.
How to Use
- Determine appropriate dilution for the task — heavier contamination at lower dilution (4:1 or 2:1 water to product); moderate contamination at 8:1 to 10:1.
- Decant diluted solution into labeled spray bottles for application.
- Apply to cool wheel, wheel well, or engine surfaces — never on hot components or in direct sun.
- Allow 2-5 minutes of dwell time for the degreaser to penetrate contamination.
- Agitate with a stiff brush for wheel wells and engine areas; use a wheel brush for wheel face and barrel.
- Rinse thoroughly with water. Repeat for severe contamination buildup.
Why Buy 5 Gallon vs. Individual Bottles
A shop degreasing 10 vehicles per day at a rate of 8-16 oz of diluted degreaser per vehicle consumes the equivalent of multiple 32 oz bottles weekly. Buying by the 5-gallon concentrated pail reduces per-ounce cost substantially and eliminates the constant reorder cycle. For operations where degreaser is a daily-use product, the 5-gallon pail is the economically rational purchasing format. For the full range of professional degreasers, browse the Degreasers category at Polishing Systems Inc.
Frequently Asked Questions
Is Purple Rush safe for coated alloy wheels?
Alkaline degreasers should be used cautiously on coated or powder-coated wheels. For coated alloys, use at lighter dilution and rinse promptly — extended contact with strong alkaline degreaser can affect some wheel coatings. For bare and painted alloy wheels, confirm compatibility. For sensitive wheel finishes, consider a dedicated wheel-safe cleaner formulated for coated and painted wheels.
What dilution ratio should I start with for wheels?
For heavily brake-dusted wheels, start at 4:1 to 8:1 (water to Purple Rush) and adjust based on results. For light to moderate contamination, 10:1 to 15:1 provides adequate degreasing action. Use full concentrate only for the most extreme contamination where lighter dilutions are not effective.
How long does a 5-gallon pail last for a production shop?
At 8:1 dilution, 5 gallons of concentrate produces 45 gallons of working solution. For a shop using approximately 1 gallon of working solution per vehicle on wheel and engine work, the 5-gallon pail provides supply for 45 full degreasing services, or roughly 9-15 weeks of daily production depending on vehicle count.
Can Purple Rush be used on concrete floors?
Yes — Purple Rush is effective on concrete oil and grease spots in shop floors. Apply, scrub, and rinse. Neutralize and dispose of rinse water properly in compliance with local wastewater regulations.
Does it require neutralization after engine bay use?
Thorough water rinsing removes degreaser residue after engine bay work. For very thorough post-degreasing preparation (before engine painting or coating), a separate IPA or specific surface prep wipe is more appropriate than relying on degreaser neutralization. Always rinse thoroughly and allow the engine bay to dry before operating the vehicle.
