Car owner is worried about potential long-term damage from tap water residue left in the coolant system after a service, due to inadequate flushing procedure.

No solution mentioned; the owner is uncertain about the mechanic's procedure and wants a way to verify or fix the potential contamination.

Severity

3Medium

Willingness to Pay

implied

Added

Apr 30, 2026

App Concept

CoolantClear FlushCheck

A mobile app and service that verifies coolant quality and guides DIY or shop-performed coolant flushes. Users can test for contaminants, track coolant change history, and receive step-by-step flushing instructions tailored to their vehicle.

Key Features

Coolant contamination testing via color sensor or test strip analysis
Vehicle-specific flush and refill procedures with video guides
History log of coolant changes and service recommendations
Parts finder for correct coolant type and flushing tools

Target Users: DIY car owners and independent auto repair shops in the automotive industry, especially those with vehicles over 5 years old

Revenue Model: $4.99 per test kit or $9.99/month subscription for unlimited vehicle tracking and premium guides

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