Quote:
Originally Posted by hudson773
piece of mind, did you read your owners manual. COMPLETELY safe to use regular. read before you speak
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It is and I do most often, and it's only because of our fuel management system you can do that. These engines are capable of detecting spark knock and making adjustments accordingly to prevent it. Results are reduced power because it's not operating as designed. Safe, yes but only because GM designed this to reduce warranty repairs! Any German vehicle does not do this! I would advise you to learn a little more about this before you speak!