[sierra]

Originally Posted by 7thgear

Thanks, Cpt.Leaflet-Reader, but it's clear you haven't a clue how petrole engines work, particularly the electronics that control fuel and spark.

thanks for dropping by.

Here's the post.

Hey guys so my dad accidentally put 87 instead of the premium 91 he only put 20$ so about 16L but i noticed a pinging noise more then usual and i asked him and he realized he put the wrong gas in the tanks half empty now but WHAT DO I DO!!!! HELPPPPPPPP

The engine was already knocking with the 91 octane because he noticed 'a pinging noise more than usual', so clearly 91 isn't up to the job for this engine. That's why they say to use 93 or higher.

I run mine on 98RON[US93] and have never heard any pinging[knocking].