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S
Snrub
replied to the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
I run 87 all the time. It makes a bit less power (say 5%), but it's not a huge difference. 91 is 25% more than 87 here - Ontario Canada...
Nov 10, 2025
Sprinkle_Star
replied to the thread
Temp guage-
.
I had to get a rental while my ST was getting body work done, and the only vehicle available that night was a Dodge Grand Caravan. In...
Nov 10, 2025
Intuit
liked
XanRules's post
in the thread
FS
DAMAGED OEM Euro Projector (Passengers Side)
.
Just found this in my dad's garage and realize I still have it. Make me an offer. I will at some point actually take it to a junkyard...
Nov 10, 2025
rufiO9
liked
foodtruck's post
in the thread
I wonder how many original owners are left on here...
.
Do almost original owners count? Got the car with only 3k miles from a dealership, currently at 70k. No plans to sell whatsoever.
Nov 10, 2025
rufiO9
liked
SteveS's post
in the thread
I wonder how many original owners are left on here...
.
Original owner of a 2019 since October of that year. Somewhere around 66,000 miles on it. Still all stock.
Nov 10, 2025
Intuit
liked
JAMADOR's post
in the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
I did 87 for the first handful of tanks. Switched to 93 when I started getting a AFR imbalance CEL. Seemed to help for a few tanks but...
Nov 10, 2025
rufiO9
liked
Scotman2's post
in the thread
Hello from Detroit
.
Welcome to the still growing Michigan group!
Nov 10, 2025
M-Sport fan
replied to the thread
Breaking in my engine
.
I am going to take a wild guess that it was installing a slightly larger impeller in the factory housing, as in one of our 'hybrid'...
Nov 10, 2025
M-Sport fan
liked
SteveS's post
in the thread
Breaking in my engine
.
I think I would ask the person who modified it what exactly he did.
Nov 10, 2025
M-Sport fan
liked
Intuit's post
in the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
If you're at high elevation, pay attention to the octane. 85 might still be sold as "regular"? If so, avoid it. 87 or higher. Higher...
Nov 10, 2025
M-Sport fan
liked
Grsemky's post
in the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
Yes factory maps allow 87 at reduced power, however I recommended staying with 91.. I'm in AZ with the same shitty gas and never used...
Nov 10, 2025
M-Sport fan
liked
Fusion Works's post
in the thread
2016 Time Attack/TT Fiesta
.
OK, lets go over a few things here. You can't turn of TVS in Forscan, doubt you can even dial it back to a measurable degree. Its a...
Nov 10, 2025
M-Sport fan
liked
RNOVRIT's post
in the thread
Official Magnetic Fiesta ST Pictures Thread
.
I joked with her that I was going to switch the interiors. Hers has a sunroof and navigation as well. The nav is nice because it...
Nov 10, 2025
M-Sport fan
replied to the thread
Bilstein Science Experiment
.
We here stateside are not allowed to have any Eagle F1s or PS4, let alone PSS tires in any sizes we could possibly use by either...
Nov 10, 2025
M-Sport fan
liked
Fusion Works's post
in the thread
Bilstein Science Experiment
.
I start mid to low 20s and want to see 32-33 hot on track. Seems like the car gets greasy at 35+. I can't imagine running 40psi hot...
Nov 10, 2025
JSWhaler
replied to the thread
I wonder how many original owners are left on here...
.
Original owner- bought my 2017 from the local dealership and now have a little over 71,000 miles. I drive it 3 days a week as well as...
Nov 10, 2025
XanRules
replied to the thread
Castro Magnatec 5W30 Suitable for 2019 Fiesta ST USDM?
.
Just adding a Mea Culpa here - I have done extensive research and even asked the same forum where I know I saw this post about Penn...
Nov 10, 2025
XanRules
replied to the thread
FS
DAMAGED OEM Euro Projector (Passengers Side)
.
Just found this in my dad's garage and realize I still have it. Make me an offer. I will at some point actually take it to a junkyard...
Nov 10, 2025
R
rallytaff
replied to the thread
I wonder how many original owners are left on here...
.
Coming up for 114,000 with no engine or transmission problems. Driven hard when given the opportunity.
Nov 10, 2025
R
rallytaff
replied to the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
I have only used 91 in my 2014 since Day 1.
Nov 10, 2025
S
SteveS
replied to the thread
Breaking in my engine
.
I think I would ask the person who modified it what exactly he did.
Nov 10, 2025
Intuit
replied to the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
If you're at high elevation, pay attention to the octane. 85 might still be sold as "regular"? If so, avoid it. 87 or higher. Higher...
Nov 10, 2025
TyphoonFiST
liked
Intuit's post
in the thread
Vibration from stationary
.
Check the passenger side engine mount. I had a clack noise on clutch release that was resolved by its replacement. I only noticed it...
Nov 9, 2025
TyphoonFiST
liked
WolfDampf's post
in the thread
Transmission/clutch problems
.
Sounds like a leak. Mine did that when my clutch master cylinder was leaky. It also did that when my clutch line was leaking due to a...
Nov 9, 2025
TyphoonFiST
liked
Grsemky's post
in the thread
Can you run the Fiesta ST 1.6L on Regular 87 Octane?
.
Yes factory maps allow 87 at reduced power, however I recommended staying with 91.. I'm in AZ with the same shitty gas and never used...
Nov 9, 2025
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