Its a modern car with a computer, it can figure out how to run the ignition on 87. It's not going to damage the car unless the manual say Required. This means not an option. Recommended is just stating that you will need it to achieve the red line performance specs for the car. So which is it in the manual Recommended or Required ?
Here is an excellent video on the subject.
Hyundai states for maximum performance (275 hp) 91 octane or greater if you are modifying the car. They did the testing and evaluation, not this bloke. Nuff Said!
I know he's popular and many think he is a authority but he jumps on the non-performance band wagon on a regular basis. He likes to spout off about most of the negative aspects of automobiles, performance modifications, and specifications but does none of the hardline testing himself. The louder he speaks and claims without individual testing, the less I tend to listen. Did you see any first hand testing on his behalf? He loves to hear himself plagiarism information. He pushes all the right buttons for entertainment and to get views and not everything he says, is truthful or factual. Most of the information he utilizes, is gleaned from the is internet, at
his behest and not always unbiasedly.
By the way, he's not a performance enthusiast and all you have to do is look at his video titles to know. He's a consumer supporter, who likes to get those views. Why, so he can get paid by Youtube of course. If there wasn't a dollar in it, the videos wouldn't be on Youtube.
Engine knock happens with lower octanes fuels and almost never with higher octane usage. I can tell you directly from first hand information; if you believe that high test fuel doesn't make a difference, then you need to bring yourself and your VN to my altitude. Running 87 or 89 midgrade in the VN at my altitude, will cause knock plain and simple. I've done it, heard it and know it happens. Not occasionally but every time it's utilized. If the car knocks it will damage the engine. If you knowing let knocking occur due to utilizing lower grade fuel, Hyundai won't repair the engine on warranty. It's detectable in both the ECU and the Black Box (EDR) with the Hyundai GDS.
I'll do what Hyundai says for best performance and what I know works. Not what a Youtuber says, who has no direct hands on test data or with anything except his ability to plagiarized off the internet.
Besides, this is from an individual in the
United Arab Emirates. It's not available to them. So respond with this in mind.
