
So the real question isn’t “is the top plan better?” It’s “is that one extra product worth a few dollars every wash?”
What each tier adds
| Chain | Tier and monthly price | What the step up adds |
|---|---|---|
| Tidal Wave Auto Spa (Indianapolis) | Simply Clean $29.97 | Base: rain repel, conditioner, tire shine, 2X under rinse, rust guard |
| Hot Wax $39.97 (+$10) | Hot wax | |
| Ceramic + Super Shammy $45.97 (+$6) | Ceramic gloss, paint seal, wheel shield, polish and more | |
| Graph-X4 + Super Shammy $49.97 (+$4) | Graph-X4 coating, ultra dry, ultra wheel | |
| Scrubs Express (Atlanta) | Scrub & Go $22 | Base: triple foam, tire shine, ceramic rain repel, underbody, bug prep |
| Scrub & Shine $29 (+$7) | Scrub & protect, fusion wax | |
| Scrub & Protect $36 (+$7) | Ceramic X3 | |
| Scrub + Seal $45 (+$9) | Graphene | |
| Arbor Car Wash (Austin, TX) | Dash & Dry $19.99 | Base: wheel and tire clean, presoak, foaming protectant, spot-free rinse, dry |
| Squeaky Clean $24.99 (+$5) | Tire shine (wheel and tire clean drops out) | |
| Luxe & Lather $29.99 (+$5) | Wheel and tire clean back, with tire shine | |
| Showroom Shine $34.99 (+$5) | Ceramic coating |
Prices are from each chain’s own plan page in October 2026. A pro ceramic coating is a separate, hand-applied job with its own price. See our ceramic coating cost guide.
The per-wash math for an upgrade
Each step is a fixed monthly add-on. How much it costs per wash depends on how often you go.
- Four washes a month: a $7 step costs $1.75 a wash.
- Two washes a month: the same step costs $3.50 a wash.
- One wash a month: it costs the full $7.
The top step at the Indianapolis chain is only $4 a month over its ceramic tier. Its bottom step, from Simply Clean to Hot Wax, is $10. So at that chain the first jump, from base to wax, is the biggest. If you’re going once or twice a month, the whole membership may not pay off. Our winter membership guide works through the break-even against single washes.
Single washes tell you the same story
Two of the three chains also list each tier as a single wash. At the Indianapolis chain, a single wash is $15 at the bottom and $30 at the top. The Austin chain charges $10 and $22. So a top-tier unlimited plan pays for itself at roughly 1.6 to 1.7 top-tier washes a month. The base plan needs about 2.
If you’d only ever buy the base wash as a single, compare the base plan with that price, not the top one.
Hard water: check for spot-free rinse, not the top tier
Water spots are minerals left behind when water dries. One chain explains that its spot-free rinse uses reverse osmosis filtering, so the last rinse leaves fewer minerals behind.
That matters most in hard-water cities. Omaha’s Platte West water plant reported total hardness of 145 mg/L in October 2025. The USGS classes 121 to 180 mg/L as hard.
The good news: you may not need to pay up for it. The Austin chain lists spot-free rinse in all four tiers, including the $19.99 base plan. Check your chain’s base tier before upgrading for that reason. If you wash at home with hard water, see spot-free rinse at home.
When the top tier makes sense
- You wash weekly or more, so the add-on costs a dollar or two a wash.
- You like the look of a fresh spray wax or sealant and would buy it anyway.
- Your car has a real ceramic coating and the installer approves the wash. See water spots on a ceramic-coated car for coated-car care.
Otherwise, a base tier that already includes an underbody rinse and spot-free rinse may be all you need.
How we research our articles: methodology.
Sources
Based on 6 sources · How we price
- Tidal Wave Auto Spa, Indianapolis, IN: tidalwaveautospa.com/location/indianapolis-in
- Scrubs Express Car Wash, Unlimited Wash Club (Atlanta, GA): websiteconnect.drb.com/scrubsexpresswash
- Arbor Car Wash & Lube Center, Unlimited Wash Plans (Austin, TX): websiteconnect.drb.com/thewashshop
- Tommy’s Express, spot free rinse: tommys-express.com/?p=5014
- Metropolitan Utilities District of Omaha, Platte West monthly water analysis, October 2025 (PDF): mudomaha.com/wp-content/uploads/2025/12/Platte-West-October-Water-Analysis-2025.pdf
- U.S. Geological Survey, hardness of water: usgs.gov/special-topics/water-science-school/science/hardness-water


