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.
Does high octane fuel damage converters in the 2003 gmc safari/4.6L v-6?
Chevrolet Astro Cargo
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Maintenance & Repair
Does anyone have a diagram for me of where the cat is supposed to be? I think its been removed before I bought it but don't know where to look.
1991 Chevrolet Astro Cargo RWD
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Maintenance & Repair
Will I damage my car driving without a catalytic converter and with a after market exhaust system?
2004 Chevrolet Corvette
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Maintenance & Repair
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2011 Chevrolet Aveo 1LT Sedan FWD
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Maintenance & Repair
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Maintenance & Repair
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