Operting temperatures

[kboy]

I was wondering is it normal for the 8hp75 transmission temperature run between 192 -199 normal and is the oil temperature 215 -220 with a continuous oil pressure of 50 normal. I did it take a 578 mile road trip doing 70-75 mph in temperature of 50-60 degree weather.

 

[CouchAssault]

those number are the same as what i'm seeing.

 

[AndreiV]

I see about the same numbers on mine, today on 85 degree day:
Between 210-220 for coolant temp, (assuming termostat rated around 215 to work/open)
Oil temp about 10 degree above coolant temps, I see 225 more often now
Around 185 transmission temps
50 psi pressure while driving in the city

 

[runamuck]

180's on tranny and 225-235 on oil typical when towing, a little lower when not

 

[Runagun]

Was around 225 degrees before the dealer update. Now at 204 degrees afterwards

 

[User_3336]

All of those temps are normal for these engines.

 

[hammer722]

180's on tranny and 225-235 on oil typical when towing, a little lower when not

What dealer update did they do that would lower your oil temp? Took a roadtrip this weekend and saw the same temps everyone else mentioned. Have a GT350 and compared to that my 19' Rebel seems to run hot. Understand they are completely different but my Shelby oil temp runs at 205 and trans at 150 when city cruising. Hard to believe the trans would run 50 degrees higher and oil would be 20 degrees higher.

 

[SD Rebel]

Those are exactly the temps I'm getting, which is about right for a full size truck that weighs over 5,000 lbs.

What dealer update did they do that would lower your oil temp? Took a roadtrip this weekend and saw the same temps everyone else mentioned. Have a GT350 and compared to that my 19' Rebel seems to run hot. Understand they are completely different but my Shelby oil temp runs at 205 and trans at 150 when city cruising. Hard to believe the trans would run 50 degrees higher and oil would be 20 degrees higher.

You are talking about 3,700 lbs vs 5,400 lbs or so. Imagine towing with your GT350, with a 1,700 lbs trailer, your temps would definitely go up. Ideal engine oil temp is 200 - 225, and that's ideal, meaning the best temp for performance and fuel economy. Can run a bit higher without hurting anything.

Plus a GT350 is designed with extra cooling in mind to handle the rigors of doing lap after lap on the track, which is far more harsh on cooling than even towing for a truck. Tooling around under low stress should allow your engine and trans to keep even cooler than most normal cars, including regular Mustang GTs.

 

[hammer722]

Those are exactly the temps I'm getting, which is about right for a full size truck that weighs over 5,000 lbs.



You are talking about 3,700 lbs vs 5,400 lbs or so. Imagine towing with your GT350, with a 1,700 lbs trailer, your temps would definitely go up. Ideal engine oil temp is 200 - 225, and that's ideal, meaning the best temp for performance and fuel economy. Can run a bit higher without hurting anything.

Plus a GT350 is designed with extra cooling in mind to handle the rigors of doing lap after lap on the track, which is far more harsh on cooling than even towing for a truck. Tooling around under low stress should allow your engine and trans to keep even cooler than most normal cars, including regular Mustang GTs.

Makes sense. Understand the weight difference but even on a flat road at 55 i would think the Rebel oil would cool off towards 200 but it never came off 225. Trans temp being at 200 was more concerning to me. Know the 350 has extra coolers but thought a truck built to tow 10k + would be "somewhat comparable" not 50 degree higher.

 

[SD Rebel]

Makes sense. Understand the weight difference but even on a flat road at 55 i would think the Rebel oil would cool off towards 200 but it never came off 225. Trans temp being at 200 was more concerning to me. Know the 350 has extra coolers but thought a truck built to tow 10k + would be "somewhat comparable" not 50 degree higher.

I think your GT350 trans temp is colder than normal, not that the RAMs trans temp is higher than normal. 200F is absolutely right on for truck trans without a load. My 2015 F150 was exactly at the same trans temp as my 2019 Rebel, about 195F - 205F range after 15 minutes of driving.

If you check ideal transmission temp for trucks, proper operating range is at 175F - 225F. Getting 150F is below normal operating temp for most vehicles actually, but you do have a manual with a track cooler.

 

[hammer722]

I think your GT350 trans temp is colder than normal, not that the RAMs trans temp is higher than normal. 200F is absolutely right on for truck trans without a load. My 2015 F150 was exactly at the same trans temp as my 2019 Rebel, about 195F - 205F range after 15 minutes of driving.

If you check ideal transmission temp for trucks, proper operating range is at 175F - 225F. Getting 150F is below normal operating temp for most vehicles actually, but you do have a manual with a track cooler.

Got it. Makes sense. First time truck owner right here. Haha. Appreciate the insight

 

[SD Rebel]

Got it. Makes sense. First time truck owner right here. Haha. Appreciate the insight

Absolutely, great question actually. This forum has already saved me from anxiety a few times already, only started a week ago

 

[Techguy2000]

Was around 225 degrees before the dealer update. Now at 204 degrees afterwards

Do you know which update this was? Thank you

 

[Tommym]

City driving

 

[User_3336]

Those temps are totally normal...... ( I just hit 2000 miles yesterday)

City driving

View attachment 30239

 

[Swayse]

Yeah, I noticed the high water temperature as well, seems too high, I guess emissions.

 

[Zeeya]

Those are almost identical to temps I’m running out here below Pecos TX. The only difference is my tranny temp which is at 193. Daytime temps have been around 100-106. I’ve seen 222 on oil temp a couple of times.
This is at 9 weeks and 8600 miles since I picked her.

 

[runamuck]

towed down to dinosaur state park this week and saw oil temps in the 230's with outside temps 100*. I think trans. was around 198-200*

 

[Big BLU]

Can't we just throw in a cooler t-stat?

 

[SD Rebel]

Can't we just throw in a cooler t-stat?

I wouldn't, these temps are designed to optimize performance and fuel economy, 230F seems to bee the sweet spots for most engines. Lower temps actually decrease fuel economy while not helping in regards to performance or durability.