Sponsored

Has anyone enlarged their air filter front grill openings filter inlet?

OP
OP
schuvwj

schuvwj

Well-Known Member
Joined
Jun 5, 2025
Threads
2
Messages
65
Reaction score
57
Location
Florida
Vehicle(s)
2025 60th Anniversary and 2016 Roush Mustang
If it 47 degrees outside, and his oil temp is at 228????

It is August in Georgia, and mine typically sits around 190.
Oil temps in your engine above 212 deg F is a good for the evaporation of water and unburned fuel in your engine oil.

However intake temps way above outside temperatures is not a good thing. Cooler air is more dense and improves the efficiency of the combustion process in your engine leading into better fuel efficiency and higher output.
Sponsored

 

Junkyard Dog

Well-Known Member
Joined
Jun 3, 2025
Threads
54
Messages
2,571
Reaction score
2,072
Location
Georgia
Vehicle(s)
2024 Dark Horse
Oil temps in your engine above 212 deg F is a good for the evaporation of water and unburned fuel in your engine oil.

However intake temps way above outside temperatures is not a good thing. Cooler air is more dense and improves the efficiency of the combustion process in your engine leading into better fuel efficiency and higher output.
If my oil temp hit 228 on a cold day when I am wearing a coat, I would be very concerned for what would happen in July on the race track.
 

AZ_Ryan

Well-Known Member
Joined
May 31, 2016
Threads
32
Messages
3,417
Reaction score
4,714
Location
Arizona
Vehicle(s)
2024 GT Premium
i don't know if this ends up being a real issue in practice. the GT makes enough power to overheat the oil and transmission fluid without the performance package when you do some more aggressive spirited driving,
Based on what? I've only seen two anecdotal stories on this forum.
 

AZ_Ryan

Well-Known Member
Joined
May 31, 2016
Threads
32
Messages
3,417
Reaction score
4,714
Location
Arizona
Vehicle(s)
2024 GT Premium
If my oil temp hit 228 on a cold day when I am wearing a coat, I would be very concerned for what would happen in July on the race track.
Here we go again. People obsessing and over thinking oil temps...

It funny how this was never even a thing before we had a gauge to look at. Lol

Normal operating engine
Temperatures don’t care what kind of day it is unless you are racing. It's just the time it takes to get there. We arent talking about air inlet temps after all. 230⁰ oil is completely normal. Mine is the same driving around in 115⁰ weather Vs 85⁰ weather.

Besides, none of that has ANYTHING to do with opening the grille holes for better flow. Which is nothing more than a feel good mod because you got bored and needed something to do. Lol
 
Last edited:

roket

Well-Known Member
Joined
Sep 22, 2022
Threads
77
Messages
2,676
Reaction score
4,053
Location
Cave Creek, Arizona
Website
roketgamer.dev
Vehicle(s)
2024 Ford Mustang Dark Horse
Based on what? I've only seen two anecdotal stories on this forum.
yeah, based on those stories. which is why i said "aggressive spirited driving". there's not nearly enough people complaining about transmission and oil temps putting them into limp mode vs how we all know Mustang owners drive to say "regular spirited driving". and those people weren't on a track, so it's not fair to say "track driving". but then there's the brick wall of an issue of how people quantify "normal" vs "spirited" driving
 


AZ_Ryan

Well-Known Member
Joined
May 31, 2016
Threads
32
Messages
3,417
Reaction score
4,714
Location
Arizona
Vehicle(s)
2024 GT Premium
yeah, based on those stories. which is why i said "aggressive spirited driving". there's not nearly enough people complaining about transmission and oil temps putting them into limp mode vs how we all know Mustang owners drive to say "regular spirited driving". and those people weren't on a track, so it's not fair to say "track driving". but then there's the brick wall of an issue of how people quantify "normal" vs "spirited" driving
Yeah. We had another poster report that they reached higher temps without going into limp mode. So I don't take the previous stories seriously. There are too many external factors we don't know. Plus, I have yet to read any temp difference comparisons between PP and non-PP cars doing WOT pulls that verify any alleged cooling problems.
 

Junkyard Dog

Well-Known Member
Joined
Jun 3, 2025
Threads
54
Messages
2,571
Reaction score
2,072
Location
Georgia
Vehicle(s)
2024 Dark Horse
Here we go again. People obsessing and over thinking oil temps...

It funny how this was never even a thing before we had a gauge to look at. Lol

Normal operating engine
Temperatures don’t care what kind of day it is unless you are racing. It's just the time it takes to get there. We arent talking about air inlet temps after all. 230⁰ oil is completely normal. Mine is the same driving around in 115⁰ weather Vs 85⁰ weather.

Besides, none of that has ANYTHING to do with opening the grille holes for better flow. Which is nothing more than a feel good mod because you got bored and needed something to do. Lol
#1 - I am not obsessing with anything about oil temps. I simply made an observation.

#2 - I never see 230° driving around in any weather. Mine typically stays in the 190s.

#3 - Right, it does have nothing to do with the grill hole mod. I just noticed this on the video. If this is normal for the rest of you, well, ok, I believe you, but my Dark Horse does not run the oil that hot in the summertime here in Georgia. My car has not yet seen 47°, so that will have to wait for wintertime. I really doubt my oil is going to get any hotter just because it is cold outside.
 

AZ_Ryan

Well-Known Member
Joined
May 31, 2016
Threads
32
Messages
3,417
Reaction score
4,714
Location
Arizona
Vehicle(s)
2024 GT Premium
#1 - I am not obsessing with anything about oil temps. I simply made an observation.

#2 - I never see 230° driving around in any weather. Mine typically stays in the 190s.

#3 - Right, it does have nothing to do with the grill hole mod. I just noticed this on the video. If this is normal for the rest of you, well, ok, I believe you, but my Dark Horse does not run the oil that hot in the summertime here in Georgia. My car has not yet seen 47°, so that will have to wait for wintertime. I really doubt my oil is going to get any hotter just because it is cold outside.
Your oil temp or head temp never gets above 190⁰?
 

Junkyard Dog

Well-Known Member
Joined
Jun 3, 2025
Threads
54
Messages
2,571
Reaction score
2,072
Location
Georgia
Vehicle(s)
2024 Dark Horse
Your oil temp or head temp never gets above 190⁰?
Those two are different.

I did not say never gets above 190° for either.

All I wrote was that my oil temp "typically stays in the 190s."

It has been over 200, but that is rare, not typical.

Unfortunately, I did not pay attention to it on my track day (I was paying attention to not leaving the track's paved surfaces).

Anyway, I was just shocked to see 228° on a cold 47 degree day tooling around on the public streets in this video. I honestly did not mean to derail the thread. That is so very different from my experience in my car.

I'll pay more attention to the head temp just because of your post, but it is frequently in the 190s, too. I do not think it has ever been anywhere near 228°
 

LouG

Well-Known Member
Joined
Mar 11, 2025
Threads
33
Messages
2,590
Reaction score
3,009
Location
New Zealand
Vehicle(s)
2025 Mustang GT
My oil reaches the temp of the surface of the sun. But it's fine, it's a Ford

Kind of off subject, but does anyone know how the lower cooler vents are removed?
Not having a workshop manual is a PIA
 
Last edited:

agreywolfe

Well-Known Member
Joined
Mar 24, 2023
Threads
20
Messages
980
Reaction score
1,297
Location
Oklahoma
Vehicle(s)
2024 Grabber Blue Mustang GT premium w/PP, 2015 F-250 Platinum

Frogdog1

Well-Known Member
Joined
Mar 4, 2025
Threads
23
Messages
1,381
Reaction score
1,607
Location
Dixie
Vehicle(s)
Chevy Suburban,Honda Civic, Toyota Pre-runner, Ford Premium GT, company vehicles
So, regardless of outside temperatures, "spirited driving or not, tracking a car or not", fluid coolers or not, what is considered maximum temperatures by all the "experts" for:

1. full synthetic oil temperatures?
2. automatic transmission fluid temperatures?
3. cylinder head temperature?

There's something else to argue about that more holes in the front of the car surely will affect....
 

AZ_Ryan

Well-Known Member
Joined
May 31, 2016
Threads
32
Messages
3,417
Reaction score
4,714
Location
Arizona
Vehicle(s)
2024 GT Premium
Those two are different.

I did not say never gets above 190° for either.

All I wrote was that my oil temp "typically stays in the 190s."

It has been over 200, but that is rare, not typical.

Unfortunately, I did not pay attention to it on my track day (I was paying attention to not leaving the track's paved surfaces).

Anyway, I was just shocked to see 228° on a cold 47 degree day tooling around on the public streets in this video. I honestly did not mean to derail the thread. That is so very different from my experience in my car.

I'll pay more attention to the head temp just because of your post, but it is frequently in the 190s, too. I do not think it has ever been anywhere near 228°
Yes I know they're different. Thats why I asked. 190 oil temp seems super low to me. Head temps around 195-205 are normal. Coolant temps between 195-and 220 are normal. Oil temps are usually the highest of the three.

For what's it worth. This is me after my trip home from work a little while ago. It's 114⁰ out, and I was diving spirited on the freeway and was just sitting at a light. Non-PP car. Note the air inlet temp.

I realize the track is different. And Id love to see someone post PP and non-PP track temps for comparison. But based on what I see in my own experience, there's a lot of room here before I'd be concerned.

S650 Mustang Has anyone enlarged their air filter front grill openings filter inlet? 20250822_153725


...anyway. Sorry to derail the thread. I Say drill those inlet holes away. Probably doesn't do anything, but it can't hurt I guess.
 

LouG

Well-Known Member
Joined
Mar 11, 2025
Threads
33
Messages
2,590
Reaction score
3,009
Location
New Zealand
Vehicle(s)
2025 Mustang GT
Last edited:

agreywolfe

Well-Known Member
Joined
Mar 24, 2023
Threads
20
Messages
980
Reaction score
1,297
Location
Oklahoma
Vehicle(s)
2024 Grabber Blue Mustang GT premium w/PP, 2015 F-250 Platinum
I think everyone here is over thinking this issue. OPs post was about the upper corner intakes, those are connected directly to the air boxes with a rubber boot. The air going there doesn't cool the car at all.
Sponsored

 
 








Top