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EOT and towing

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Old May 22, 2013 | 10:06 PM
  #1  
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EOT and towing

I have a 2000 with a 14' enclosed trailer I drove from florida to South Carlina today. This is the first real trip since I have done all of my upgrades. One of these upgrades was a DP-Tuner infinity. While towing today I noticed my oil temperature hitting 221 to me that seems high. The truck ran fine. The trailer was empty so the weight was 2600 lbs does this seem right?
 
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Old May 22, 2013 | 10:47 PM
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I called a friend of mine about this very thing today and then I come on here and there is other people talking about the very same thing. I was running down the interstate pretty hard to day and noticed mine got up to 226 degrees so I got out the throttle but unloaded my truck stays around 180-190 around town
 
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Old May 22, 2013 | 10:57 PM
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That's normal. Keep on truckin'.
 
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Old May 22, 2013 | 11:07 PM
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Not sure what is good or bad, but I'm pretty sure I read on here a few months ago 240 is kind of "the line" you don't want to cross. I towed my '88 3/4 ton to a buddies house today to start making a trailer. my EOT got to 219, in 80t with 70deg outside temps. Seems a little high to me but I wasn't taking it easy.
Thinking I'm gonna flush my radiator soon and see if it makes a difference.
 
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Old May 23, 2013 | 03:09 AM
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As stated, those oil temps are completely fine. Some guys actually prefer them warmer and do modifications to try and achieve that. Hope you guys are enjoying the Infinity
 
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Old May 23, 2013 | 06:01 AM
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Originally Posted by Justin@DP-Tuner
As stated, those oil temps are completely fine. Some guys actually prefer them warmer and do modifications to try and achieve that. Hope you guys are enjoying the Infinity
Justin

I wonder what temp the EOT hits before the fan fully locks in. Mostly for economy reasons.
 
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Old May 23, 2013 | 01:18 PM
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Originally Posted by Jmatthews
Justin

I wonder what temp the EOT hits before the fan fully locks in. Mostly for economy reasons.
It should be fully locked in by 205*-215*. According to the Ford service manual... "The temperature of the air hitting the fan clutch should be above 96°C (205°F) for maximum fan speed."
 
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Old May 23, 2013 | 06:29 PM
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Originally Posted by Justin@DP-Tuner
It should be fully locked in by 205*-215*. According to the Ford service manual... "The temperature of the air hitting the fan clutch should be above 96°C (205°F) for maximum fan speed."
So is the EOT the same as the ECT?
 
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Old May 23, 2013 | 11:07 PM
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Quick question, Does anyone know what is a safe EOT to shut down at to prevent turbo "cooking".
I was hauled the horses over to the forest area to ride today , when i got there my EOT was about 212 let it idle while we unloaded and got down to 205 before I shut it off. Just wondered If I even needed to let it idle that long?
 
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Old May 23, 2013 | 11:57 PM
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Originally Posted by cjgray1974
Quick question, Does anyone know what is a safe EOT to shut down at to prevent turbo "cooking".
I was hauled the horses over to the forest area to ride today , when i got there my EOT was about 212 let it idle while we unloaded and got down to 205 before I shut it off. Just wondered If I even needed to let it idle that long?
I don't know the answer to this but I do know that 212 is my normal non towing temp ar 70 mph, and that 205 is the recommend operating temp from international. I think that you would have been fing shutting it down at 212. But this is a guess.
 
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Old May 24, 2013 | 01:20 AM
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Originally Posted by Rishsd
So is the EOT the same as the ECT?
No, but they should be fairly close to each other(coolant being a little cooler than oil). The 7.3L PCM does not monitor coolant temp though.

Originally Posted by cjgray1974
Quick question, Does anyone know what is a safe EOT to shut down at to prevent turbo "cooking".
I was hauled the horses over to the forest area to ride today , when i got there my EOT was about 212 let it idle while we unloaded and got down to 205 before I shut it off. Just wondered If I even needed to let it idle that long?
The main thing people watch when shutting down is EGT, not EOT. When the oil is at operating temp, you are not going to have any problems shutting it down and hurting the turbo.

Shutting down at 205* is fine
 
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Old May 24, 2013 | 06:29 AM
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Originally Posted by cjgray1974
Quick question, Does anyone know what is a safe EOT to shut down at to prevent turbo "cooking".
I was hauled the horses over to the forest area to ride today , when i got there my EOT was about 212 let it idle while we unloaded and got down to 205 before I shut it off. Just wondered If I even needed to let it idle that long?
Oil coking at the turbo is entirely reliant upon EGT's, not EOT. Coking has always been a bigger issues with turbocharged gassers than diesels, since gassers run hotter EGT's to begin with. Coking in diesels nowadays is extremely rare on top of that, thanks to modern oils and additives in those oils.

EGT's is what heats up the turbo. Oil left in the turbo when you shut down the engine is subjected to the temps of the turbo itself. It doesn't matter if your oil is 190 degrees, 205, 212, etc....... when the turbo is at 400 degrees.
 
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Old May 24, 2013 | 10:24 AM
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Thanks guys, that makes sense. My turbo shouldn't be to hot, the last 2 miles or so is on gravel, no hills cruising at about 30mph. Thanks
 
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