u/Alternative-Snow-490

▲ 2 r/AskMechanics+1 crossposts

Tucson 2025 noise

Hey everyone,

Lately in my area the fuel quality has been really bad ,very low octane. I started noticing a strange sound coming from my engine as in the three clips in the video.

The sound mostly happens when I press the gas, and sometimes it becomes very fast/rapid. As soon as I lift my foot off the accelerator, the sound disappears.

Is this typical engine knocking, or could it be something else?

If I keep driving like this, will it get worse or cause serious damage?

Also, if I switch to higher octane fuel, will the issue go away, or could there already be damage done?