Gold Coin Car Wash
Gold Coin Car Wash is a 7-location self-serve bay chain operating across 1 US state. Its weighted Google rating has slipped from 4.29★ to 3.65★ since 2024-04, a sustained decline measurable across 63 AI-extracted reviews.
Data updated · May 24, 2026
Key findings
- 7 self-serve bay locations across 1 US state (largest footprint in California).
- Weighted rating drifted from 4.29★ to 3.65★ starting 2024-04 — a sustained chain-wide decline.
- Built from 63 AI-extracted Google reviews scored across 55 dimensions.
7 locations across 1 states · dot size scales with review volume
Review-time analysis flags Gold Coin Car Wash as showing an active rating drift. Rating fell from 4.29★ to 3.65★ starting 2024-04, with wash result quality the leading complaint theme during the window. Operator-level drift analysis like this isn't something an individual Google Maps listing can surface.
The full review corpus (1,368) and the AI-scored subset (63) together drive the per-aspect signal.
About Gold Coin Car Wash
How many locations does Gold Coin Car Wash have?
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What is the average customer rating at Gold Coin Car Wash?
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What format of car wash is Gold Coin Car Wash?
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Where does Gold Coin Car Wash have the most locations?
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How have Gold Coin Car Wash ratings and review volume trended over time?
27 months of monthly review velocity and rating data underpin the drift detection. Peak review volume: 10 reviews in 2025-05. The rating line below makes the inflection point easy to spot — the volume bars show whether customer flow tracked with the quality shift.
Monthly review volume
27 monthsAverage star rating by month
scale 1–5What customers love about Gold Coin Car Wash
No strongly-positive aspect signals.
Where customers complain about Gold Coin Car Wash
No strongly-negative aspect signals.
Aspect score = (pos − neg) / (pos + neg + mixed), range −1 to +1. See per-pillar leaderboards →
Operational health signals
How much competition does Gold Coin Car Wash face at each site?
Trade-area competitive density at Gold Coin Car Wash sites averages 12.4 car washes within 1 mile and 42.4 within 3. In a drift scenario, dense competitive sets accelerate customer-switching when quality slips.
Per-site competitor counts use haversine distance against the WashIndex location index; sister sites in the same chain are excluded.
What amenities do customers mention at Gold Coin Car Wash?
Amenities most frequently mentioned in Gold Coin Car Wash reviews — useful context for the drift, since amenity-related complaints often surface when broader quality slips.
Which metros and cities does Gold Coin Car Wash have locations in?
Gold Coin Car Wash operates across the metros and cities below. Each link drills into the WashIndex per-metro or per-city market analysis, with Gold Coin Car Wash's position alongside every other operator.
Alternatives to Gold Coin Car Wash
The chains that compete with it most directly, compared.
Which states does Gold Coin Car Wash operate in?
Footprint: 7 locations across 1 state. concentrated in California (7). Per-state rating column below is where to look for geographic attribution of the drift.
| State | Locations | Total Reviews | Avg Rating |
|---|---|---|---|
| California | 7 | 1,368 | 4.00 |
What are the top Gold Coin Car Wash locations by review volume?
The per-location table is the most useful section for diagnosing chain-wide drift. Each row carries the site's own rating trajectory; the chain-wide drift may concentrate in just a handful of sites.
3.9 273 reviews 15 / 46 / 61
Trade-Area Competitors
- Octane Auto Vault 0.17 mi · 4.9★
- Brothers Detail Center 0.23 mi · 3.1★
- The ARCO Car Wash 0.24 mi · 4.3★
- PJ Auto Detailing & More 0.35 mi
- Fresh N Clean Auto Detailing 0.35 mi · 4.8★
Operational Signals
- Wait Time -1.00
- Per-Wash Price -0.60
Monthly Review Velocity
4.2 268 reviews 11 / 36 / 68
Trade-Area Competitors
- By The Bay Carwash 0.21 mi · 4.6★
- Classy & Classic Auto Detail Car Wash 0.43 mi · 4.3★
- Bay AreaOn-the-Go Detail 0.58 mi
- Berkeley Shining Mobile Carwash 0.58 mi · 5.0★
- Innovo Auto 0.71 mi · 4.7★
Operational Signals
- Per-Wash Price -1.00
- Wait Time +1.00
- Staff +1.00
- Facility Cleanliness +1.00
Monthly Review Velocity
4.0 234 reviews 14 / 32 / 59
Trade-Area Competitors
- Broadway Carwash 0.17 mi · 2.8★
- TD Car Wash 0.19 mi · 5.0★
- BH Mobile Car wash 0.20 mi · 5.0★
- AquaPro Mobile Detailing 0.31 mi · 5.0★
- Window Tinting A Plus 0.57 mi · 4.4★
Operational Signals
- Wash Quality +1.00
- Staff +1.00
- Equipment Working +1.00
- Per-Wash Price +0.43
Monthly Review Velocity
San Ramon, CA 1920 San Ramon Valley Blvd 4.2 200 reviews 13 / 27 / 29
Trade-Area Competitors
- Poppy Market 0.03 mi · 5.0★
- MDS Mobile Detail Specialist 0.12 mi · 5.0★
- 925Tint 0.34 mi · 4.5★
- 925 Auto Detail 0.35 mi · 5.0★
- Ceramic Pro San Ramon 0.36 mi
Operational Signals
- Wait Time +1.00
- Staff +0.60
- Per-Wash Price +0.50
- Wash Quality +0.33
Monthly Review Velocity
3.6 153 reviews 17 / 53 / 48
Trade-Area Competitors
- Lucky Auto Detail 0.22 mi · 4.5★
- In and Out Auto Detail 0.24 mi · 4.0★
- Steve's Auto 0.26 mi · 4.4★
- J&W Mobile Detailing – Ceramic Coating & Paint Correction 0.30 mi · 4.9★
- XLNC Auto Beauty 0.45 mi · 4.9★
Operational Signals
- Wait Time -1.00
Monthly Review Velocity
3.9 135 reviews 6 / 63 / 47
Trade-Area Competitors
- Carter Auto Express Detailing 0.19 mi · 5.0★
- The Town Car wash 0.61 mi · 4.1★
- Bancroft Wash 0.64 mi · 5.0★
- Car wash 0.69 mi · 4.8★
- Car Wash 0.76 mi
Operational Signals
- Per-Wash Price -1.00
- Wash Quality -1.00
- Staff -1.00
Monthly Review Velocity
4.1 105 reviews 11 / 40 / 63
Trade-Area Competitors
- Uptown Body & Fender - Auto Body Shop and Collision Repair in Oakland 0.07 mi · 4.9★
- Best Detail Inc. 0.18 mi · 4.7★
- Window Tinting A Plus 0.43 mi · 4.4★
- BH Mobile Car wash 0.74 mi · 5.0★
- TD Car Wash 0.79 mi · 5.0★
Operational Signals
- Per-Wash Price +1.00
- Staff +1.00
Monthly Review Velocity
Data as of 2026-05-24. Pick a format and click Copy.
WashIndex. (2026, May 24). Gold Coin Car Wash — WashIndex operator profile. https://washindex.com/car-wash-chains/gold-coin-car-wash
WashIndex. "Gold Coin Car Wash — WashIndex operator profile." WashIndex. Last modified May 24, 2026. https://washindex.com/car-wash-chains/gold-coin-car-wash.
"Gold Coin Car Wash — WashIndex operator profile." WashIndex, May. 24, 2026, https://washindex.com/car-wash-chains/gold-coin-car-wash.
@misc{washindex_car_wash_chains_gold_coin_car_wash_2026,
title = {{Gold Coin Car Wash — WashIndex operator profile}},
author = {{WashIndex}},
year = {2026},
month = {May},
url = {https://washindex.com/car-wash-chains/gold-coin-car-wash},
urldate = {2026-05-24},
} About this profile
Every operating-quality signal on this page is derived from 63 customer reviews of Gold Coin Car Wash locations, processed through WashIndex’s 55-field LLM extraction pipeline. Competitor counts within 1 / 3 / 5 mi rings are computed by haversine distance against the WashIndex location index across the chain’s states and immediately adjacent ones (sister sites in the same chain are excluded). Monthly review and rating trends are pulled from the raw Google Maps review feed. 0 spam-flagged reviews were excluded from the aggregates.
See our full methodology for the extraction pipeline, validation samples, and aggregation logic. Term definitions in the glossary.
Machine-readable: JSON ↓ · API root
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