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Discussion Starter #1
So I went to the dealership this morning to discuss my second separated tire in less than two months.....This is besides the point, we got to talking about the oil cooler and what temps we should see. At highway speed I normally see about a 12-14 degree split between coolant and oil, oil temp being the higher of the two. This is not pulling anything and doing anywhere from 70-85 mph. Typical temps: coolant-199-201 oil-210-214

I asked the service manager, who has been great the past two times ive been to this dealership, what Ford says is the normal temp split between oil and coolant and when is it time to bring it in for warranty. He said that anything over 4 degrees is a sign of concern and should be addressed. I told him I was above 10 degrees and he said "Yep you need a new oil cooler". This guy seems very knowledgeable and is cool about my delete on my truck. I knew I was heading down the road of needing my oil cooler replaced, but I was under the impression it was anywhere from 15-20 degrees difference in oil and coolant, not 4 degrees.

On a side note, we got to discussing headstuds and he said that the dealership always provides the option of ARP studs or OEM when doing a head gasket job. He said the truck is torn apart, might as well give the option of putting something better on. The customer has to pay the additional amount for the ARP though.
 

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I have had a 4-6 degree split ever since I have been able to monitor the temps. Towing I see from 4-9 or so. I have always read that 15-20 is when things are really starting to plug up so with your consistent 10 I would probably at least start thinking about getting it changed.
 

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i didnt change mine on my 6.0 till i had a 41 degree split lol lucky me it never leaked or ruptured...
 

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Discussion Starter #4
Well its still under warranty, so it will be done sooner rather than later....I would have left it with them today, but I might need it tomorrow or Sunday(Its only driven on the weekends)

I was more interested in getting the tire situation worked out.
 

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I see you have continentals? I seem to remember a recall on 18" continental tires found on newer superduties

I only did one recall about a year ago on a 6.4 equipped truck (can't remember the year) and the customer got 5 new tires.
 

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Yes there was a recall on the continental tires this last summer.
 

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Sound to me like he's juz trying to get in your wallet with the whole 4 deg. thing.
 

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Yeah I thought it was 15*+ delta, Im usually 2*-6* separation regular driving.
 

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It's still under warranty do he is not trying to her in his wallet infact most dealerships would say its fine and hope his warranty ran out. Luckily his dealer sounds like the one i go too
 

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Discussion Starter #10
Yes there was a recall on the continental tires this last summer.
Ya i got the letter in the mail from Ford telling me to check my tires to see if they fit, mine werent covered though. The dealership said that doesnt mean my tires wont eventually be recalled though.

Sound to me like he's juz trying to get in your wallet with the whole 4 deg. thing.
Just as another poster said, I am still under warranty, so they wont be getting in my wallet at all.
 

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Discussion Starter #12
To me those temps are a bit high. Have you done a thorough flush?
No I havent done a flush of my coolant. I wasnt going to pay for coolant and burn up time flushing it when I knew the cooler is going to need to be changed out, under warranty.

What all happens when the oil cooler is changed at the dealership? Do they just drain the coolant, pull the bad cooler, put in the new cooler, and fill up with fresh 50/50? Would they flush the entire system with restore?

By the way, I have a coolant filter kit installed......
 

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Sorry about the spelling mistakes on the last post you can thank my phone lol. In regards to the coolant don't quote me on this but I believe they just drain whatever coolant comes out then top it up. I know that's what they do for other repairs but the oil cooler may be different maybe they flush first then replace cooler. Hopefully somone else can chime in if not give your dealer a quick shout
 

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Discussion Starter #14
Well am I wrong in thinking that the restore flush process is mainly done for cleaning out the cooler? And even more wrong for thinking that if you pull the faulty part and replace with new, theres no real point in doing the flush?!?
 

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Well am I wrong in thinking that the restore flush process is mainly done for cleaning out the cooler? And even more wrong for thinking that if you pull the faulty part and replace with new, theres no real point in doing the flush?!?
I believe the restore & restore plus is for cleaning out the whole system of stuff that builds up over time. I don't think it is just used for cleaning out the cooler. In some cases though people have done a restore & restore plus flush & it has cleared up their problem.
 

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No I havent done a flush of my coolant. I wasnt going to pay for coolant and burn up time flushing it when I knew the cooler is going to need to be changed out, under warranty.

What all happens when the oil cooler is changed at the dealership? Do they just drain the coolant, pull the bad cooler, put in the new cooler, and fill up with fresh 50/50? Would they flush the entire system with restore?

By the way, I have a coolant filter kit installed......
Every dealership is different. One might just refill. Another might suggest a flush with vc9. You might want to ask. Restore is a cummins product and doubt they would use it.

I ran 2 coolant filters spanning 6-8k miles. Both filthy when i opened them up. Didnt help the condition of my coolant. My temps werent terrible so when i flushed with both the restores my temps only dropped a few degrees. My internals were very clean after the flush. It got rid of a very thick scale build up and lots of rust. There was a fair amount of sand as well. Im very glad i did it. Gives me a peace of mind.

In your situation i guess it depends how well your dealer flushes your system and how it effects your warranty.
 
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