When Detergent Alone Won’t Kill the Diesel Smell.
For your worst loads — set-in diesel odor, embedded shop grease, sweat-baked smoke. Add it alongside Workwear Detergent when rough turns brutal.
Size
- 16 oz — $22.99
- 32 oz — $44.99
When it's back
Between production runs — the next batch ships in about 4–6 weeks. Join the free waitlist and we'll email you the day it's back.
- HE-compatible, works in any washer
- No bleach, optical brighteners, or floral perfumes
- No bleach, softeners, or optical brighteners. Follow the garment tag.
About this product
Sold out. Next batch — get on the waitlist.
Between production runs. Join the free waitlist and we will email you the day it ships. No charge.
For the loads that need more than detergent alone.
Grease & Odor Booster is the additive built for extreme conditions — set-in diesel odor, embedded shop grease, and sweat-smoke that won't quit. Use it alongside Workwear Detergent on your worst loads.
What It Does
- Helps break down diesel and petroleum odor
- Helps lift embedded shop grease and gear oil
- Targets locked-in sweat and smoke odor
How To Use
Add 1–2 oz to your normal wash cycle alongside Workwear Detergent. For heavy contamination, pre-soak in warm water with 4 oz Booster for 30 minutes before washing — follow the garment care label.
Compatible With
- HE washers (front and top loaders)
- FR-rated workwear and high-vis gear
- All Blackwater detergent products
Formulated without bleach, fabric softeners, or optical brighteners — safe to use on FR and hi-vis. Does not restore or confer flame resistance. Follow garment and employer care instructions.
Why tradesmen trust Blackwater
Gear-safe formula
No bleach, softeners, or optical brighteners. Does not restore FR. Follow the garment tag.
Blackwater vs. The Aisle.
Most heavy-duty detergent is the same suburban formula in a darker bottle. We didn't do that.
Everything Inside The Bottle.
All the technical answers.
Shipping & Restock
We're between production runs. The next batch ships in about 4–6 weeks. Join the free waitlist and we'll email you the day it's back.
Once we're shipping day-to-day: free US standard shipping over $70, $8 under, $15 express. Full details in our Shipping Policy.
Formula & Ingredients
Petroleum-cutting surfactants, enzymes for set-in protein soils (sweat, skin oil), pH-balanced builders to lift mineral grit (concrete dust, hydraulic fluid). No dyes, no synthetic florals, no fabric softeners.
FR & High-Vis Safety
Formulated without bleach, fabric softeners, or optical brighteners. Does not restore, confer, or guarantee FR. Follow the garment tag.
We leave out chlorine bleach, optical brighteners, and silicone-based softeners. Always follow the garment tag.
How To Use
Heavy soil: 1 capful per load (HE compatible, all washer types).
Pre-treat: For set-in stains, apply a small amount direct to the stain and wait 5 minutes before washing.
Cold water OK: Works in cold, warm, or hot — runs best with full surfactant action at warm.
Care & Storage
Store below 90°F out of direct sunlight. Shelf-stable for 24 months from manufacture date. Recyclable HDPE bottle (#2).
Returns & Guarantee
30-day money-back guarantee. Open it, use it, and if it does not work on your gear we refund you — you do not need to send back a used bottle. Full terms in our Refund Policy.
Pause, skip, or cancel any subscription anytime from your account.
Common Questions.
When will my order ship?
We're between production runs — the next batch ships in about 4–6 weeks. Join the free waitlist to be emailed the day it's back.
How is this different from household detergent?
Household detergent is tuned for household soil — food, dirt, body oil. Blackwater is built for workwear soil: diesel, motor oil, hydraulic fluid, machine grease, plus concrete dust, smoke, and sweat-set odor.
Is it formulated for FR and high-vis gear?
Formulated without bleach, fabric softeners, or optical brighteners. Does not restore, confer, or guarantee FR. Follow the garment tag and your employer care instructions.
How many loads in a bottle?
32 loads from a 32 oz bottle at 1 oz per load. Subscribe & Save is 10% off.
Will Subscribe & Save be available?
When the next batch is in, Subscribe & Save will be 10% off, delivered every 1, 2, or 3 months. Pause, skip, or cancel anytime. Join the waitlist and we will email you the day it is back.
What if it doesn't work on my gear?
30-day money-back guarantee. Open it, use it, and if it doesn't do the job we refund you — no need to ship back a used bottle.
Built For People Who Actually Work For A Living.
One system for diesel, grease, and set-in sweat — free of the three things that wreck FR gear.