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Old 05-26-2011, 07:53 PM
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Question Y'all $pent my thou$and$, now can you help a brother out?

Hey all,
Been readin (lurking) my a$$ off for bout 2 months since my 6.0 came up the road lookin like a Stanley Steamer! Since then, thanks to your posts, I've installed the Bullet Proof EGR & oil cooler and some other various do-dads. Love the Bullet Proof, love the new Edge CTS I installed tonight!
Here lies the mystery. I read alot about oil/coolant deltas being 3-10 degrees, 15 being critical. Is this because the oil cooler is water cooled and 15+ indicates trouble? Or will 15+ cause damage somehow?
I now have an EXTERNAL oil cooler and my new CTS monitor showed huge deltas for 25 minutes of warm-up. Temps. are as follows...

5 min. warm up, 5 min. downhill.......................................del ta 15-20*
15 min country drive, med accels..oil 155...coolant 188.......delta 33*
Idle 5 min.................................oil 170...coolant 186.......delta 16*
Regular country driving...............oil 185...coolant 188.......delta 3*
5 min drive uphill, low airflow.......oil 196...coolant 200.......delta 4*
Parked.....................................oil 205...coolant 200.......delta 5*
After 5 min cool down.................oil 203...coolant 188.......delta 15*

I've never heard of deltas being this far apart , but I've never heard of anyone speaking of warm-up. Is this normal? Does my EXTERNAL oil cooler make a difference? Will these deltas hurt my shtuff?
Thanks for sharing all your experience and opinion, $aved me a bunch on diagno$tic$ and labor!
Richard
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Old 05-26-2011, 08:14 PM
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Quote:
Originally Posted by RodeoPapaStroker View Post
Hey all,
Been readin (lurking) my a$$ off for bout 2 months since my 6.0 came up the road lookin like a Stanley Steamer! Since then, thanks to your posts, I've installed the Bullet Proof EGR & oil cooler and some other various do-dads. Love the Bullet Proof, love the new Edge CTS I installed tonight!
Here lies the mystery. I read alot about oil/coolant deltas being 3-10 degrees, 15 being critical. Is this because the oil cooler is water cooled and 15+ indicates trouble? Or will 15+ cause damage somehow?
I now have an EXTERNAL oil cooler and my new CTS monitor showed huge deltas for 25 minutes of warm-up. Temps. are as follows...

5 min. warm up, 5 min. downhill.......................................del ta 15-20*
15 min country drive, med accels..oil 155...coolant 188.......delta 33*
Idle 5 min.................................oil 170...coolant 186.......delta 16*
Regular country driving...............oil 185...coolant 188.......delta 3*
5 min drive uphill, low airflow.......oil 196...coolant 200.......delta 4*
Parked.....................................oil 205...coolant 200.......delta 5*
After 5 min cool down.................oil 203...coolant 188.......delta 15*

I've never heard of deltas being this far apart , but I've never heard of anyone speaking of warm-up. Is this normal? Does my EXTERNAL oil cooler make a difference? Will these deltas hurt my shtuff?
Thanks for sharing all your experience and opinion, $aved me a bunch on diagno$tic$ and labor!
Richard
Richard
Your deltas are the other way around must be from the oil cooler EXTERNAL to me they look good the only one is the coolant it's low because the t/stat does not open tell 192.2* did you install a new one if so i hope it was a Ford
Lookes good to me Mitch PGreenSVT should know he has the same setup.
2 stroker
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Old 05-26-2011, 08:21 PM
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Your fine - no worries. The 15*F delta was a parameter Ford identified to be an indication of the "Water Side" of the oil cooler plugging up.
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Old 05-26-2011, 08:24 PM
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Absolutly a factory new tstat. Thanx man, was hopin to hear from Mitch too. I was expecting to see oil warm up faster than the coolant.?. I dunno
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Old 05-26-2011, 08:27 PM
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Your fine - no worries. The 15*F delta was a parameter Ford identified to be an indication of the "Water Side" of the oil cooler plugging up.
Thanx bismic, I was hopin to hear that it INDICATES a problem, not CAUSES a problem.
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Old 05-26-2011, 09:57 PM
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negative deltas

Quote:
Originally Posted by RodeoPapaStroker View Post
Here lies the mystery. I read alot about oil/coolant deltas being 3-10 degrees, 15 being critical. Richard
Almost all of your deltas are negative deltas. Meaning no problems as far as overheating the EGR cooler. A positive delta of 15 or more is the point of concern. Even at that, you now have the BPD EGR cooler so you are miles ahead.
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Old 05-26-2011, 10:02 PM
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Sweet! ...
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Old 05-27-2011, 03:39 AM
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One thing I think you missed is when that 15* delta makes a difference. Based on the above it looks like you were taking temp readings at various "around town" driving scenarios.

The proper way to test the delta is to get your truck to operating temps and then drive at 65 mph on the highway. That is when you test the delta. Driving around town, especially in hilly areas, won't give you a true gauge of your ranges. Your "regular country driving" could fall into this (country driving here is 65+) and if so then it looks like you're right where you should be.

As explained above, the significant difference in temps during your warm up is due to the thermostat not being open and you, technically, not being up to "operating" temps.
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Old 05-27-2011, 03:56 AM
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The delta temp has no meaning for someone with an air cooled oil cooler.
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Old 05-27-2011, 04:50 AM
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Originally Posted by Acidsniper View Post
One thing I think you missed is when that 15* delta makes a difference. Based on the above it looks like you were taking temp readings at various "around town" driving scenarios.

The proper way to test the delta is to get your truck to operating temps and then drive at 65 mph on the highway. That is when you test the delta. Driving around town, especially in hilly areas, won't give you a true gauge of your ranges. Your "regular country driving" could fall into this (country driving here is 65+) and if so then it looks like you're right where you should be.

As explained above, the significant difference in temps during your warm up is due to the thermostat not being open and you, technically, not being up to "operating" temps.
Thanks Acidsniper. I'll put er on the highway tonight.

Mark. With my external oil cooler the standard deltas mean little to me, right?
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