should eot ever be higher than my ect.

 

Everything I have read says that any difference greater than 15* (hotter oil) means your oil cooler is failing/plugged. Using my scan gauge II xgauge my EOT is 17-20* hotter around town 25-30* hotter at freeway speed. Needless to say, I have a new oil cooler in the shop waiting for me to have time to work on it...

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Sorry, 5-10* degrees hotter oil is what most see as normal.

 

Something I am missing here,,, If they hear a leak while doing an ai test then it is an Oring, not an injector, the upper orings where the oil rail seats into the injector are replaceable, you can get the injector oring set with the upper ring for $8/ it also includes the lower rings and copper seal/ the standard oring set is $5. So instead of changing the oring they replaced the whole injector for almost $300 when a $8 part would have fixed it. Look on ebay and there is a company that sells the complete kit, these kits were only available to rebuilders until recently.
If it were me I would buy 8 "complete" sets of Orings/ dealers might not sell the complete ones cuz they sell the injectors for $300/ and I would buy the tool and rings for the oil rail itself /$150/ it's a custom made tool to remove the nipples in the oil rail so you can replace those orings as well, I would do all this myself and it would be alot cheaper then the dealer.Ford 6.0L Oil Rail Repair Kit, Tool and O rings, High Pressure Oil Leak Fix | eBay


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6.0L Powerstroke Diesel Injector O-ring Kit (includes HP oil rail seal) | eBay

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And yes the engine oil will be hotter then the coolant, that is why they use the coolant to cool the oil. When oil temps are around 15deg hotter than coolant then the cooler might be clogged or on its way to being clogged. Only when engine is at operating temp because the oil will heat up quicker then the coolant when first started.

 

At this point it definitely sounds like the Hot Shot's Secret stiction eliminator product is worth a try. With a 5w40 synthetic oil change it should clean up everything. I've heard part of it's "magic" is causing the upper o-rings on the oil side to physically swell and expand, slowing/stopping any small leaks.

 

Are you a hot shot salesman or something? It's not magical in any way. If it's like rev-x (which I'm assuming it is) it's just a bunch of potassium more or less. I highly doubt it will cure any high pressure oil leaks though.

 

Hi Mdud707
Trust me I'm not a hot shot sales man, I just found a forum discussion on line where he said that Rev-x cured his high pressure probs and then through further research found the hss site then a couple guys on this forum and other forums started singing the praises of how this stuff works, so I got caught up n the hype.

From now on not bring up any products unless I have had personal experiences with myself.

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So on that note the dealership service rep gave me a free bottle of the motorcraft cetane booster and I'm not sure if its the booster or the new injectors but the truck seems to get better mileage now, cause I got the truck back in time to go to a fishing tournament this week end about 3-hours north oh me, so it was about a 300 mile round trip of mostly highway miles and on my edge cts gaues it said I averaged 23.6 mpg. I know that might be off, but before that the highest I averaged was about 21.5 on the highway. And the engine response was great. He gave it to me because he wants me to take off the tune on the truck.

The extra mileage could be because of the EGR delete, but I've read a lot of guys saying the got worse mileage from an EGR delete.

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SORRRRRY Mdub707 I thought you were talking to me I didn't realize that 06s49 had said what he said. My bad.

 

Sorry, I'm definitely not a salesman, just very impressed with hearing the owner speak on AM radio multiple times.

Also some clarification: I misheard/read that the formula has any effect on the o-ring shape; solvents are neutral in that respect, the only possibility is removing carbon affecting the seal? Obviously there's no additive out there to fix a big leak and visibly worn rings.

 

I only asked because you had 2 posts and both were pushing hot shots.

23mpg? Always find those hard to believe. I avg 15 or so in my supercab/shortbox... one of the smallest/lightest configurations out there.

How are you checking mileage? I certainly hope you're not going off of the lie-o-meter in the truck, and I hope you don't just fill til the pump clicks off. Is your speedo calibrated for the tire size? Verify with GPS.

 

No I was going off what the edge Insight Cs said, but it was pretty close to the lie-o-meter and the CS is calibrated to my tire size.

What is the absolute best, most accurate way to test mileage?

 

Fill the tank. After the pump handle clicks off, pull the nozzle out a little so you can see the fuel going into the tank. SLOWLY keep filling. You need to fill until you see fuel resting in the neck. It will keep filling up quickly and then settle back down, just be patient, this will take you 10 minutes or so to get those last few gallons in. Once the fuel is in the neck, resting steady, then reset your odometer and go for a drive. After you've run the tank down, refill the SAME way. This is the ONLY way to ensure you're getting the same amount of fuel in each time. When the pump clicks off you could have quite a variance, depending on how much the fuel is foaming up inside. Could be off 2-5 gallons at a time. The lie-o-meter is not to be trusted, at least until you calculate by hand to verify. When you refill the same way again, just take miles driven and divide by gallons put into the tank. We just need to make sure the fuel is filling up to the same starting point each time. It's a royal PITA.