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SIAM withdraws letter on E20 chloride concerns
The Hindu··6 Aug
On the night of August 4, SIAM withdrew an earlier letter to the Ministry of Petroleum and Natural Gas that had flagged chloride-related corrosion concerns with E20 fuel. The earlier letter cited part failures and chloride levels of about 500 mg/kg and sought limits. SIAM later said the numbers need authentication and that industry supports E20.
Prism
What It Means For You
- Vehicle owners using E20 can note that SIAM now says industry supports the fuel after withdrawing its earlier chloride warning letter.
- Readers should treat the earlier ~500 mg/kg chloride figure as unauthenticated until verified, per SIAM's clarification.
- Anyone comparing fuel standards can look to MoPNG guidance citing 3 ppm chloride and sulphur limits.
What's Happening
- On the night of August 4, SIAM withdrew an earlier letter to MoPNG that had flagged chloride-related corrosion concerns with E20.
- The earlier letter cited part failures and chloride levels of about 500 mg/kg and sought limits.
- SIAM later said the numbers need authentication, pointed to ministry guidelines, and said industry supports E20.
Why Fuel Quality Claims Need Verified Numbers
- Ethanol-blended fuel debates often turn on lab thresholds, field failures, and whether industry data is ready for public policy use.
- Withdrawing a letter after questioning authentication shows how quickly technical claims can be revised.
- Clear ministry specifications remain the reference point when private estimates are disputed.
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