# Drive-Over Undercarriage Washer | Enzo's Neutralizer > A drive-over undercarriage washer that cleans and salt-neutralizes a full chassis in under five minutes, no operator underneath. Works at 4 GPM / 2,000 PSI. Canonical URL: https://enzoscleaning.com/cleaning-equipment/under-carriage-sprayers/the-neutralizer/ 🛡️ Enzo's Original # The NeutralizerDrive-Over Undercarriage Washer Stop the corrosive effects of road salt and brine. Drive over it and the full chassis is washed and salt-neutralized in under five minutes per vehicle — no operator underneath. [Get a Free Quote](https://enzoscleaning.com/contact-us/)[Download Flyer](https://enzoscleaning.com/downloads/neutralizer-flyer.jpg)[419-502-0007](tel:4195020007) Add to request <5 min Per Vehicle Wash 4 Chemical Channels 2,000+ PSI Minimum 4+ GPM Flow Rate ## See It in Action Watch The Neutralizer deliver a complete undercarriage wash — protecting vehicles from salt corrosion in under five minutes. The Hidden Threat ## The True Cost of Salt Corrosion Road salt doesn't just sit on the surface — it creeps into every crevice, attacking brake lines, fuel lines, electrical connections, and frame rails from the inside out. 23% Shorter lifespan for vehicles regularly exposed to road salt without treatment $2,000+ Average cost of a single fuel line or brake line corrosion repair 5+ Years Additional vehicle life with regular undercarriage neutralization ## Road Salt is Destroying Your Fleet Every winter, salt and brine eat away at your vehicles from underneath — where you can't see the damage until it's too late. Brake lines, fuel lines, electrical connections, and frame rails corrode silently, leading to thousands in repairs and dangerous failures on the road. ### The Solution: Neutralize on Contact The Neutralizer is Enzo's original undercarriage wash system, designed from the ground up to blast away salt, brine, and road chemicals from underneath your vehicles. Combined with our D-Salt neutralizing detergent, it doesn't just wash — it chemically neutralizes corrosive agents on contact. - Stops corrosive effects of road salt & brine - Extends vehicle lifespan by years - Reduces costly undercarriage repairs - Complete wash in under five minutes per vehicle ## Built for the Toughest Fleets From school buses to snow plows, The Neutralizer protects the vehicles your community depends on ### Municipal Fleets Plow trucks, salt spreaders, dump trucks, and utility vehicles that face the worst salt exposure every winter. ### School Bus Fleets Protect your entire bus fleet from costly undercarriage damage with a quick drive-over wash. ### Fire Departments Keep engines, tankers, and rescue vehicles in peak condition — ready when your community needs them. ### Private Fleets Delivery trucks, service vans, and any commercial vehicle that runs through salt states all winter. ## The Complete System Four integrated components working together for the ultimate undercarriage protection ### Detergent Distribution System 4-chemical selector manifold plumbed to a downstream injector. Choose from Sizzle brushless truck wash, D-Salt neutralizer, Buckshot 10 Gauge De-Greaser, or specialty disinfectants — all on the fly. ### High Pressure Manifold Single inlet connects to your pressure washer with two outlets — one to each spray bar — controlled by high pressure ball valves for precise flow control. ### Drive Over Unit Dual pad & dual spray bar design: one rinse bar and one chemical bar. Simply drive over for a complete undercarriage wash in seconds. ### Works With Your Existing Washer The Neutralizer works with any pressure washer meeting minimum 4 GPM @ 2,000 PSI. No need to buy new equipment — just plug in and go. ## Why Fleets Choose The Neutralizer Stops corrosive effects of road salt & brine Extends vehicle lifespan by years Reduces costly undercarriage repairs Complete wash in under five minutes per vehicle Works with your existing pressure washer 4-chemical switching without disconnecting Designed & built by Enzo's — proven in the field Perfect for fleets, fire departments & municipalities 📚 For Serious Buyers ## Ready to Invest in Your Fleet's Future? If you're seriously evaluating undercarriage protection for your fleet, this in-depth walkthrough covers everything you need to know — from system specs to real-world ROI. It's longer because the decision deserves it. Return on Investment ## One Repair Avoided Pays for the Entire System A single brake line replacement can cost $500–$1,500. Fuel line corrosion repairs run $800–$2,000+. Frame rail damage? That's a vehicle off the road entirely. The Neutralizer pays for itself the first time it prevents just one of these failures. - Under five minutes per vehicle — minimal downtime impact - Reduces annual maintenance costs by thousands - Extends vehicle service life by years ## Real Installations. Real Results. See how fleets across the country are using The Neutralizer and Enzo's wash bay systems to protect their investments. ### Complete System Tour Walk through a full Enzo's wash bay installation — from undercarriage sprayers to the rinse arch. ### Fire Station Wash Bay See how this fire department keeps their engines and rescue vehicles protected year-round. ### Municipal Fleet Demo Watch a full municipal fleet wash cycle — from salt neutralization to final rinse. ## Explore the Complete Wash Bay System Hover over each component to learn how Enzo's Automatic Drive-Through Wash System protects your fleet from salt corrosion and keeps vehicles spotless. Hover or tap the blue dots to explore each system component Want to see how this all comes together in a full wash bay? [Explore Wash Bay Design](https://enzoscleaning.com/cleaning-equipment/wash-bay-design/)[Automatic Drive-Through Systems](https://enzoscleaning.com/touchless-drive-thru/) ## "The Neutralizer" Drive-Over Salt Neutralizing System A closer look at the drive-over spray pad, 4-station detergent selector manifold, and wireless remote control system. ## Drive-Over Undercarriage Washer Questions ### What is a drive-over undercarriage washer? It is a wash system built into the surface of the lane rather than mounted on a wand or a gantry. Spray bars sit in pads on the ground and fire upward into the chassis as the vehicle rolls across at walking speed, cleaning the frame rails, axles, brake lines and fuel tank that an exterior wash never reaches. ### How long does a drive-over wash take per vehicle? Under five minutes for a full undercarriage pass. The driver does not get out and no one works beneath the vehicle, so the wash fits into an end-of-shift routine instead of needing a dedicated wash crew. ### Do I need a special pressure washer to run it? No. The Neutralizer runs off any pressure washer supplying at least 4 GPM at 2,000 PSI, which most fleet shops already have. It connects to the machine you own rather than requiring a new one. ### Is a drive-over washer better than a manual push undercarriage sprayer? For washing a fleet on a routine, yes — coverage is identical on every pass and it does not depend on the operator. A manual push sprayer costs less, needs no installation and lets an operator aim at a specific corroded area, which suits smaller or mixed fleets and spot work. ### Does it just rinse the salt off, or actually stop the corrosion? Both, from separate bars. One bar rinses; the other applies D-Salt neutralizing chemistry that reacts with the chlorides left in seams and crevices. Rinsing alone removes what you can see and leaves the chloride that keeps corroding after the vehicle is dry. ### What kinds of vehicles can drive over it? Anything that fits the lane — plow trucks, salt spreaders, school buses, fire apparatus, refuse packers, tractors and service vans. Systems are sized to the largest vehicle in the fleet so the smaller ones pass through without adjustment. ### Does it need a pit or concrete work to install? No excavation is required. The drive-over pads are positioned in the wash lane and plumbed to your pressure washer, which is why it can be added to an existing bay rather than requiring a rebuilt facility. ## Ready to Protect Your Fleet? Get a free consultation and see how The Neutralizer can save you thousands in corrosion damage every year. 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