u/9bots

My dad has 2014 elantra sedan that had the engine replaced under the recall. He’s been using 88 octane E15 as a cheaper alternative lately. The car has been running fine, but I checked the manual today and it recommends 87 octane or lower. This has me worried, especially because of the lifetime warranty on the engine. Should I tell him to stop using it immediately?

My dad has 2014 elantra sedan that had the engine replaced under the recall. He’s been using 88 octane E15 as a cheaper alternative lately. The car has been running fine, but I checked the manual today and it recommends 87 octane or lower. This has me worried, especially because of the lifetime warranty on the engine. Should I tell him to stop using it immediately?