Originally Posted by 2AF150GA

I love my '19 5.0. The oil consumption has completely stopped and it runs like a champ. I have no doubt the early 2018's and some 2019's had some issues but mine only exhibited the oil consumption and after 5000 miles and the TSB 2365 it is perfect (I do believe these motors need to be revved up some after the initial 1200-1400 mile suggested break in). These 5.0s like to rev so getting on it helps break it in. Mine is a Oct 2019 build and it doesn't rattle or make a bunch of weird noises and it's only gotten better with miles. I would buy another one if I had to do it over again for sure. Only thing worth noting is I exclusively run top tier 93 octane as I believe the 2018+ motors run much better with 93 than 87.

Originally Posted by Quick10

Way better on 93 even on stock tune, hell dyno even shows a 20hp difference between it and 87 stock. 87 made my 5.0 feel lazy, runs so much better, smoother, also no hiccups like pinging I got even on highways at elevation or even getting on it moderately to pass at sea level FL. I don't know how anyone could drive this truck on 87 at our compression ratio for 18+ blocks, it holds back the engine like it's gimped. Towing was a noticable difference as well. I only use Kirkland or other too tier is travelling and not near Costco (Costco 93 is stupid cheap too).

Originally Posted by Takeda

In 5 years, and 90K+ miles, I've always used Kirkland 87 octane. After what you guys said, and I tried a tank of 93 octane. I found the same thing, it seems to run more effortless. It makes sense with the compression ratio, the knock sensors and PCM will retard the ignition timing with the 87 octane, and advance the ignition timing with the 93 octane. Thank you for your posts!

Originally Posted by Quick10

Kirkland is already top tier so even their 87 is better than other 87s. But yeah I only run Kirkland 93 in this truck, have to at 12:1, same for the GM 6.2s which are a little less at 11:5 I think. If no Costco I'll just fill up at whatever top tier 93 is around travelling, Costco prices though are killer.

Trying to tow with the 18+ blocks on 87 is like ping ding dong ping ping pong. And just feels, lazy/lethargic.

But when you say 5 years, you talking previous Gen? I didn't see any difference on 93 minus custom tuned previously. But with the 18+ at 12:1 compression 93 on factory tune makes quite a difference.

Originally Posted by mxdude105

I've had my 2020 for just about 6 weeks, bought new, has 1700mi on it now. So far, so good. Has not used any discernible amount of oil. It does have a rattle on decel when its cold, but this goes away after a few moments. I can tell it pulls timing very aggressively at low rpm on 87. Haven't run a tank of 93 through it yet. I've had two V-8 Fords in the past and they both did over 200k with basic maintenance, so I thought I'd stick with what works.

Originally Posted by OCMike

If you're running 87 treat it to a tank full of 93 and see if the rattle goes way.

Originally Posted by robt7v

Hi all,

Just bought a 2018 5.0L with ~44,000 kms on it. While I like the truck overall, it does have the deceleration rattle, which is making me a bit nervous about longevity. I've completed the TSB 18-2354 but unsurprisingly it did not work. Wondering if there are any examples of high mileage 3rd gen coyotes out there, and if you have had any problems related to this or other engine durability issues? My last truck was a 2016 5.0, which I sold with over 200,000 kms on it, so I hope I have not upgraded to a less reliable option. I put a lot of miles on my truck and hope to have this thing last me well over 200k.

Thanks in advance,
Rob