Just got my new Denali home and was going through the manuals when a supplement came fluttering out that says the engine needs 91 octane minimum or it will spark knock. That was a shocker. I thought I'd done my homework
Anyway, for those running the 6.2 L engine, have you had any issues with 87 octane? Pulling up to the Premium pump is no big deal now but when gas gets back to $4.00 it's going to be painful. :ack:
Anyway, for those running the 6.2 L engine, have you had any issues with 87 octane? Pulling up to the Premium pump is no big deal now but when gas gets back to $4.00 it's going to be painful. :ack:
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