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Age old question, 5w20 vs 5w30

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Location
Nevada
#1
Hello everyone,

Still a relatively new member of this community, and finally got my 2019 Fiesta ST I was looking for just 13 days ago.

(Updated post in case anyone was following my new member introduction post)
https://www.fiestastforum.com/threads/greetings-from-las-vegas.32519/

With that out of the way, I feel like I'm going to get ripped in half for asking this question. But, I have done my due diligence and searched multiple threads regarding this topic on this forum, and even doing research outside of the forums to see what everyone is saying.

From what I've seen so far...I've learned that (Please correct me if I'm wrong)
1. Apparently the 5w20 weight is used to achieve better mileage...? Or at least that's what Ford was aiming for when they put it on the owner's manual.
2. 5w20 is used mainly for colder climates, but even so people are deciding to go 5w30

I have seen many people either stay true to the 5w20 or change to 5w30. I've also heard some people mention benefits outside of performance for going to 5w30 instead (like less noise and rattle).

I plan to daily the fiesta for the most part and currently reside in Las Vegas, so we're in our colder months right now. But "cold" is only about 45-50 degrees Fahrenheit here. No track use, but like to go for light spirited drives from time to time.

My mind is saying 5w30, and plan to go for this at my local Wal-mart but just want to make be 100% sure before I go forward with it: https://www.walmart.com/ip/Pennzoil...uart/139680614?classType=VARIANT&athbdg=L1102

With all that being said, I turn to you my fellow Fiesta fanatics. Would you go for 5w20, or 5w30? Any input is greatly appreciated!!
 




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