catalytic converter damage

Asked by GuruB5RV4 Dec 12, 2018 at 09:16 AM about the Chevrolet Astro Cargo

Question type: Maintenance & Repair

Does high octane fuel damage converters in the 2003 gmc safari/4.6L v-6?

1 Answer
43,910

Hornet_2497 answered 5 years ago

Your vehicle does not require high octane but it won't hurt the catalytic converters if you chose to use it anyway. The only thing that damages converters is an overly rich fuel mixture, that will result in combustion of fuel and overheating them. Also, your V6 engine is 4.3 liter.

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