CCT

Our composite score (0–10). Blends effectiveness, health impact, and environmental impact against a published rubric. Higher is better.

Health

Health-only sub-score (0–10), translated from the product's Safety Data Sheet and ingredient chemistry. Green ≥ 7, amber 4–6.9, red < 4.

Env

Environmental sub-score (0–10): biodegradability, aquatic toxicity, VOCs, and packaging. Color tracks the score — red lowest, emerald highest.

Flags

Quick badges:

• SDS — Safety Data Sheet on file.NO SDS means the manufacturer hasn't published one (we penalize the health score for this).
• CARB— meets the California Air Resources Board's stricter VOC limits.
• Bio— biodegradable per the manufacturer's claim.
• P65 — carries a California Prop 65 cancer or reproductive-harm warning.

2 products · ranked best-first

Healthier picks hides products with a Prop 65 warning or PFAS ingredients.

1. 01

   

   Sea Foam

   Motor Treatment

   🏆#1 · Oil AdditiveSDS

   6.0

   CCT
   Health5.0Env4.0

   See it on Amazon →
2. 02

   

   Motul

   Engine Clean AUTO

   SDS

   5.7*

   CCT
   Health5.0Env4.0

Product	Category	CCT ↓	Health	Env	Flags	Buy
Sea Foam Motor Treatment 🏆#1 · Oil Additive	Oil Additive