what fuel is everyone running in their 2019 5.0????
which is better for the life of the engine?

 

Best bet is to get something flammable.

It really aids in pushing down the piston to prevent the motor from stalling.

Hope that helps.

Also, I don't know what EVERYONE uses.

If you don't like this answer, there might be something in the owners manual suggesting what fuel is suitable.
It may sound sarcastic (it is supposed to), or snarky (not meaning to), but it's probably one of the nicest answers that will be posted in this thread.

 

I wish there were E85 in the northeast so I could try some.

 

What is this "owner's manual" of which you speak?

 

Very informative. thank your sir!

 

The answer is your truck has a knock sensor. This means it will work, without damage, with any fuel, by changing ignition parameters to avoid knocking. That said, higher octane will result in better performance. I use 91 with my 5.0.

 

Sorry, but if you don't know what an owners manual is, there is no hope for you. One of these days you'll learn. I have confidence in you.

 

I started out using 87 octane on my 2019 5.0. But I could hear the engine momentarily ping each and every time I step on the accelerator in a taller gear. I stopped that immediately and went to 91. Now it has zero pinging even during hot and high loads. And the engine feels more crisp and responds much quicker when I ask for more power no matter what gear. The 5.0, especially the 2018+ have really high compression. They really respond well to higher octane. I read they make as much as 20 more hp but I can't recall exactly which website or you tube video it was that showed the gain using a dyno. All I know is, it certainly feels much more responsive. Personally, I didn't buy this truck to save money on gas. I bought it because it's a freakin' damn fast pick up truck and is fun to drive. If I can't have a Mustang as a second fun car, then I may as well have fun with my one pick up truck! Otherwise I would have gotten the base 3.3 liter V6 model because that's where you save on fuel.

 

Thanks, I appreciate the vote of confidence.

 

Ran one tank of 87 and the truck sounded and ran like crap. Switched to E85 and it made a big difference on how it ran. I just got back from a 550 mile round trip all hwy miles averaging 75 mph and got 16.2 miles per gallon on the lie o meter.

I have E85 across the state and will not switch to running anything else. I don't care two diddly squats about if I get better mpg with this gas or that. The truck runs really strong on E 85 and I average 100 miles a week.