'04 6.0L Filter Modification Questions
After reading some great posts, it seems that adding these to an otherwise stock '04 F250 6.0L makes good sense.
Have never heard of any warranty issues from installing either one of these items. If you are concerned asked your favorite 6.0 tech at your dealer what he thinks of installing them and warranty issues.
I guess a pain the but dealer or regional service rep could always do it, but it has never been reported or even discussed (on any board). I have both of these mods and never a problem or even a question.
By adding these to your motor, you are not forcing the motor to work above and beyond its design parameters. This is where tuners, intakes, exhausts and other mods can cause problems.
Good luck and enjoy.
10 days ago, I bought this '04 XLT F250 6.0L with 37k miles with a superclean OASIS.
I changed the oil, fuel and external tranny filters yesterday. I plan on flushing the tranny and coolant system soon. (Am aware of the Gold coolant and it's self contained chemistry not requiring SCAs).
As soon as possible, I plan to add the oil bypass and external coolant filters.
After reading a couple of posts by "mrxlh", I am considering adding a "full flow" external tranny filter. I'm a little confused about it though. If I understand him correctly, the stock external filter is actually a bypass that filters only 10% of the circulating fluid and is not a full flow filter. I'm not sure why it would be neccessary to add the filter. Wouldn't the entire volume of fluid filter anyway? Any opinions and/or research on this?
Also, I have a question about all these add ons. Do any of you have concerns about the restriction of flow rate? A filter, by its very nature decreases the flow rate, which would raise operating temperatures...right? Or wrong?
Mark
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10 days ago, I bought this '04 XLT F250 6.0L with 37k miles with a superclean OASIS.
I changed the oil, fuel and external tranny filters yesterday. I plan on flushing the tranny and coolant system soon. (Am aware of the Gold coolant and it's self contained chemistry not requiring SCAs).
As soon as possible, I plan to add the oil bypass and external coolant filters.
After reading a couple of posts by "mrxlh", I am considering adding a "full flow" external tranny filter. I'm a little confused about it though. If I understand him correctly, the stock external filter is actually a bypass that filters only 10% of the circulating fluid and is not a full flow filter. I'm not sure why it would be neccessary to add the filter. Wouldn't the entire volume of fluid filter anyway? Any opinions and/or research on this?
Also, I have a question about all these add ons. Do any of you have concerns about the restriction of flow rate? A filter, by its very nature decreases the flow rate, which would raise operating temperatures...right? Or wrong?
The built-in pan filter and the factory external filter do a good job when the fluid is changed every 30,000 miles as per the manual or sooner if hauling hard and heavy.
I have flushed and sent samples to Blacsktone labs and the Mercon SP is great fluid and the stock filtering process is second to none. Save your money.
Why not add the coolant filter when you flush your cooling system???
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That's the plan. I just wanted to educate myself on it a little first. Do you think there is any concern on the potential for higher operating temperatures?
4x4Mark says the add-on oil and coolant filters are both bypass filters, so his theory is that they won't effect critical flow. Makes sense to me, but has anyone witnessed any change in temps with these filter systems?
I realize this is probably a silly question, but I'm no diesel tech by any stretch of the imagination. Just hoping to gather as much knowledge as possible before making changes. It feels a little ominous making changes to an expensive piece of equipment engineered by professionals to operate without the help of a backyard no-nothing like me. These two filters seem like prudent additions though.
According to my oil analysis reports, the "soot levels" did not drop that much and I only added it due to the "free cost" I paid from racor for it. Otherwise, just change your oil on time with Racor made and OEM oil filters. However, I am sold on it and the benefits of it... and as fickle as the 6.0L is for wanting clean/fresh oil... I like knowinig I have it!!!!!
Int'l has a coolant filter option for their motors and since we all filter out air, oil and tranny fluids.... why not the coolant???
Check out dieselsite.com for a complete kit from a company with great service. I was so impressed I sent them pictures of what theit filter took out of my system... and they use them to this day on their website!!!
When you call and speak to Bob, tell him I said hello and recommended his coolant filter system... do not forget to buy the additional ballcock valves.. amkes changing the filters much easier.
1) Coolant filter
2) Oil by-pass filter
3) Racor made/OEM oil filters
4) Int'l Fuel filters (Racor made and less $$$)
5) Stock air filter with blue/OEM filter media
6) Grey Goose Vodka
7) Absolute Mandrain flavor vodka (with tonic)
9) Churchill size cigars (7" X 50) - (Connecticut shade wrappers)
10) Women with big hooters.
All of the above have been throughly tested and have passed my hands on testing for price, value and durability.
Good luck and I hope my testing and use benefits you down the road.










