Simple things you need to know about the PH level of a car wash soap
When selecting a car wash soap, understanding pH levels is crucial for protecting your vehicle's finish while achieving optimal cleaning results, especially if you're a new detailer or car enthusiast just starting out. pH-neutral soaps, typically around 7 on the scale, are the safest choice for routine maintenance washes—they gently lift dirt and grime without stripping protective wax, sealants, or ceramic coatings, making them ideal for weekly cleanings on daily drivers to preserve that showroom shine without risking damage to paint, chrome, or plastics. On the other hand, higher pH alkaline soaps (around 8-12) excel at cutting through tough contaminants like road tar, grease, bugs, and heavy soil, which is perfect for pre-wash decontamination on neglected vehicles or after off-road adventures; however, their aggressive nature can dull paint over time, etch sensitive surfaces, and remove protective layers if used too frequently or not rinsed thoroughly, so reserve them for occasional deep cleans followed by reapplication of protection. Conversely, lower pH acidic soaps (around 2-6) are excellent for targeted tasks like dissolving mineral deposits, water spots, brake dust, or iron fallout on wheels and lower panels, providing a thorough prep before polishing or coating; but they come with risks, including potential corrosion on metals, fading of trim, or weakening of clear coats if left on too long or used undiluted, which is why they're best suited for experienced users on specific problem areas with immediate neutralization and rinsing. Ultimately, start with pH-neutral for most washes, and incorporate alkaline or acidic options only when needed for heavy-duty jobs, always testing on a small area first and following up with a protective product to maintain your car's longevity.
My favorite Car Wash Soaps
A great car wash soap stands out through a balanced combination of key performance factors that make washing safer, more effective, and enjoyable for both new detailers and enthusiasts. Exceptional foaming ability produces thick, rich, clingy suds—especially with a foam cannon—that lift dirt away from the paint, creating a cushion to minimize scratches during contact washing. High slickness (or lubricity) ensures your wash mitt glides smoothly across the surface, reducing friction and the risk of swirl marks or light scratches on delicate clear coats. Strong cleaning ability efficiently removes everyday grime, bugs, and road film without being overly aggressive, while easy rinsing is crucial for leaving no residue, streaks, or water spots behind, allowing for quick, spot-free drying. Finally, a pleasant scent enhances the overall experience—whether it's a fresh, invigorating aroma or something more subtle—making the detailing process more rewarding without being overpowering. Look for pH-neutral formulas that excel in these areas for regular use, as they deliver reliable results while protecting your vehicle's protection layers and finish.
Great Foaming Ability in the foam cannon These work amazing both in the foam cannon and the wash bucket.
DIY Detail Incredible Suds V2 pH 8.2 Buy Direct Code: HAWAIIDETAILING 10%off
Grape scent 4/5, thin viscosity pouring into the foam cannon 4/5. Huge foam delivery @ 1oz soap per 32oz water in the foam cannon 5/5. Suds in the wash bucket 4/5. Cleaning power 4/5. Slickness on the paint 4/5.
Ethos Foam Party pH 7.0 No Longer Available
Strong Coconut tropical scent 5/5 (My favorite scent). Thin viscosity pouring into the foam cannon 4/5. Huge foam delivery @ 2oz soap per 32oz water in the foam cannon 4/5. Suds in the wash bucket 4/5. Cleaning power 4/5. Slickness on the paint 4/5.
Adam’s Mega Foam pH 7.0 Amazon
Strong Cherry scent 4/5. Thin viscosity pouring into the foam cannon 5/5. Huge foam delivery @ 2oz soap per 32oz water in the foam cannon 4/5. Suds in the wash bucket 3/5. Cleaning power 3/5. Slickness on the paint 3/5.
Koch Chemie GSF pH 7.5 Amazon
Cherry scent 3/5. Thin viscosity pouring into the foam cannon 4/5. Foam delivery @ 2oz soap per 32oz water in the foam cannon 3/5. Suds in the wash bucket 4/5. Cleaning power 3/5. Slickness on the paint 5/5.
Best Higher PH Soaps
P&S Frostbite pH 9.8 Amazon
Fresh scent 2/5. Thin viscosity pouring into the foam cannon 4/5. Foam delivery @ 3oz soap per 32oz water in the foam cannon 3/5. Suds in the wash bucket 4/5. Cleaning power 4/5. Slickness on the paint 4/5.
Bilt Hamber pH 10.5 Review coming soon!
Make your own high pH soap
Foam cannon DIY Homebrew High PH Pre-wash: (High PH for pre washing extremely dirty cars or attempting a touchless wash)
1oz of your favorite pH neutral wash soap
1-2oz of APC (Detail GradeAll Purpose Cleaner) Online Store or Amazon
Fill the rest of the foam cannon with warm tap water.
**DO NOT ALLOW THIS SOAP MIX TO DRY ON THE PAINT!!**
Make your own detailing products Dilution Ratio Calculator Page