5L concentrate
Designed for repeat preparation of working solution, using only the stated ratio for the vehicle condition and task.
DIRTY DEVIL
DIRTY DEVIL Ultra Concentrated Citrus Pre Wash 5L with 1.5L Pressure Sprayer
£27.99
In stock
amazon.co.uk price: £27.99 (as of 03/10/2026 10:38 UTC) Details
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MotorStash take
A concentrated 5L pre-wash bundle for softening bugs, road film and grime before your contact wash.
DIRTY DEVIL combines an ultra-concentrated citrus pre-wash with a 1.5L pressure sprayer. Its useful role is to reduce the dirt left on the vehicle before a mitt touches the paint—not to replace a complete wash or justify a stronger-than-directed mixture.
Best fit
Choose it for repeat pre-washing when you can measure, test and rinse consistently.
The included pressure sprayer supports controlled application without needing a foam lance. A 5-litre concentrate also suits frequent cleaning better than a small ready-to-use bottle.
The listing mentions dirt, bugs, road grime and broad surface use. Treat that as product positioning, not automatic approval for every coating, trim, wheel finish or delicate material. Follow the current label and test first.
1.5L pressure sprayer
An included application tool for measured panel coverage when assembled and pressurised according to its instructions.
Pre-contact cleaning
Targets loose dirt, road film, insects and grime before shampoo and a clean wash mitt are used.
Targeted application
Useful on dirtier lower panels and insect-affected areas, provided the surface and contact time are supported.
Surface test required
Do not assume the same mix is suitable for paint, bare metal, wheels, plastics, wraps and protective finishes.
Complete rinse stage
Apply to cool surfaces, do not let it dry, and rinse as the label directs before contact washing.
What the bundle solves—and what it does not
Measured pre-wash
The sprayer gives you a repeatable container for a permitted working mix.
Road-film reduction
Pre-washing can remove part of the contamination before contact, helping reduce grit movement.
No shampoo replacement
A contact wash with suitable shampoo and clean tools may still be needed after rinsing.
No automatic protection safety
Check the label if the vehicle has wax, sealant, ceramic coating, wrap or matte finish.
No hot-surface use
Do not work in conditions where the product can dry rapidly or exceed stated temperature guidance.
No unlabelled leftovers
Prepare only what you need and follow the instructions for emptying, depressurising, rinsing and storing the sprayer.
Useful habit: write the product name and prepared concentration on the sprayer if the instructions permit the mix to remain in it. Never use an unmarked chemical sprayer.
Plan the strength around the instructions, not the dirt alone
| Situation | Sensible response | Avoid |
|---|---|---|
| Routine road film | Use the labelled routine-cleaning concentration | Jumping to neat product without support |
| Bug-heavy front end | Target the affected area within the stated dwell time | Scrubbing dry insect residue into paint |
| Unknown coating or finish | Check documentation and test inconspicuously | Assuming “all surfaces” means no test is needed |
| Warm, sunny panel | Move to shade and let the surface cool | Allowing cleaner to dry |
A practical pre-wash sequence
Read and measure
Use the current dilution, PPE and surface guidance; never mix the concentrate with another cleaner.
Check the vehicle
Work in shade on cool surfaces and test any unknown finish or protective layer.
Prepare the sprayer
Mix in the stated order, close securely and pressurise only as the sprayer manual allows.
Apply and monitor
Cover the intended areas evenly, respect dwell time and do not let the solution dry.
Rinse, then wash
Rinse thoroughly before moving to a paint-safe contact wash with clean tools.
Worth considering if
You regularly pre-wash vehicles and want a measured pump-sprayer process without relying on a foam lance.
Look elsewhere if
You prefer a pre-diluted bottle, need a cleaner explicitly approved by a coating maker, or want buckets and wash tools included.
Bottom line: DIRTY DEVIL's 5L-and-sprayer bundle is useful for a repeatable pre-wash stage. Its value comes from correct dilution and controlled rinsing, not from treating a concentrate as universally safe or complete car shampoo.
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