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fuel line hose ok for transmission?????

52476 Views 52 Replies 20 Participants Last post by  titan14
I want to replace my leaking transmission line. I went to pepboys I purchased 10ft of Dayco fuel line 5/16. Is fuel line ok to use???? is there any difference between fuel line and transmission line.


Thanks

Al
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Wow I haven't been able to track down the Goodyear 65211 transmission cooler bulk hose at any of my local AutoZones. Its seems to have been replaced with the Dayco hose even though their computers says they have the Good Year hose in stock. When they went to check their stock, they came up with the Dayco hose instead. According the chart above the Dayco should work just as good.
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Wow I haven't been able to track down the Goodyear 65211 transmission cooler bulk hose at any of my local AutoZones. Its seems to have been replaced with the Dayco hose even though their computers says they have the Good Year hose in stock. When they went to check their stock, they came up with the Dayco hose instead. According the chart above the Dayco should work just as good.
Correct. Ran into that when looking myself. I just went to an online store to order mine. Down side was I had to purchase 25ft of it. So, I have plenty for my two buddies where I live when they do their radiators.
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I did my other whip with fuel hose a few months ago. so far, no issues. car trannys arent high pressure
I did my other whip with fuel hose a few months ago. so far, no issues. car trannys arent high pressure
Its not the high pressure that will get you ... but, I am glad you feel comfortable and happy with a hose that will start to disintegrate into your transmission... :ftard:
Its not the high pressure that will get you ... but, I am glad you feel comfortable and happy with a hose that will start to disintegrate into your transmission... :ftard:
I would agree that under normal operation that the transmission pressure is probably not that high but I wonder if that may change of there is a blockage or a filter is clogged. If the radiator goes there might also be a sharp rise in fluid temperature as well.

It makes better sense to use a hose that is specified for the use for which it is intended regarding temperature, pressure and chemical inertness. If one replaces the transmission hose with fuel hose without knowledge of the difference is one thing but, having been alerted to the difference between the two, might give cause to wonder about one's mindset.:)
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Im glad i feel comfortable also. Im not telling anyone to choose fuel hose over automotive type hydraulic hose. If you have the stronger hose, by all means, use that instead. What I am saying is fuel hose works. without issue. Period. If you cant admit that, or aren't able to prove otherwise, might give cause to wonder about ones mindset. And btw, fuel, including leaded and unleaded Gasoline, Diesel, Biodiesel†, E-85, 100% Methanol, ETHANOL and gasohol fuels are much harder on hose than transmission oil. Fuel hose for carbureted engines is aprox. 50 psi rated, and fuel hose for injected engines over 200 psi rated, both more than adequate for tranny pressures
Titan14 , The chemicals in transmission fluid are different then most types of fuels including diesel. Time is not your friend on this one.
Goodyear fuel line specs: Fuel Line/PCV/Emission Control Hose SAE 30R7 | Goodyear® Engineered Products

Goodyear transmission line specs: Transmission Oil Cooler Hose. | Goodyear® Engineered Products

Transmission line has 5 times more working strength and 4 times more burst strength. I think I'll stick to transmission line.
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Correct. Ran into that when looking myself. I just went to an online store to order mine. Down side was I had to purchase 25ft of it. So, I have plenty for my two buddies where I live when they do their radiators.
Who'd you order from??
Just get the Dayco trans cooler lines from Autozone, just as good. Just give them the Goodyear part number from above when you go. Its been superseded. Im running the Dayco hose now, its pretty stout hosing.


Who'd you order from??
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Titan14 , The chemicals in transmission fluid are different then most types of fuels including diesel. Time is not your friend on this one.
you may notice from the links posted above that both hoses are manufactured from the exact same material.
you may notice from the links posted above that both hoses are manufactured from the exact same material.
That may be true but that information alone is meaningless. Acrylonitrile-Butudiene Rubber can be composed of different ratios of the base copolymers to effect the different needs and specifications for the intended use.

See image below that was taken from a pdf document found here: http://www.gupta-verlag.com/media/bookshop/rehearsal/extract_06.pdf

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you may notice from the links posted above that both hoses are manufactured from the exact same material.
So you want me to provide you with a chemistry lesson? I think I would put most people to sleep by the time I was done.

Lets just say there IS and issue when the compounds from one type of fluid when, Hydrolic with cleaners, interact with other compounds rubber based "adhesive agent" There can be an affect over time that can cause the "adhesive agent" to become less adhesive. This process may help the hose to disintegrate from the inside out.

The best thing to do would be to use the correct hose and that is what I am trying to tell people here to do. As I have said before, I am glad you are happy. Now, for the extra $2 to buy the same length of hose, even if I am totally wrong, is it worth your piece of mind for $2? Just saying

Enough said, all done, no more comments from me on this one.
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I don't understand trying to save two bucks when there is the slightest chance it will damage a 30K or more truck.
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So you want me to provide you with a chemistry lesson? I think I would put most people to sleep by the time I was done.

Lets just say there IS and issue when the compounds from one type of fluid when, Hydrolic with cleaners, interact with blah blah blah.... blah blah blah.. This process may help ... blah blah blah....
:zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz: :zzzz:
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I don't believe that titan14 preferentially purchased the fuel line hose over the transmission hose or was even offered a choice between the two. I expect that he purchased and installed the fuel line hose and before learning about the difference and is reluctant, at least in the short term, to change out the hose.
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Well, following the advice on this forum, I picked up some Trans Cooler hose from O'Reilly to change mine out with and honestly it cost about the same as the fuel line hose, it's all cheap enough to just know that it's done right. Rob, whether you're right or wrong your concern is greatly appreciated and probably helped me out, or at least with pissing off wifey for spending another day in the garage. :rofl:
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There is a noticeable difference between the fuel injection hose and trans cooler hose. The the trans hose appears to be thicker more stiff then the fuel hose. Just by squeezing the two different hose between my fingers I felt a difference. They may be made of the same material but the manufacturing process must be different. They may use a different fiber reinforcement material. Anyway I picked the Dayco trans cooler hose at my local Autozone for about $1.50/ft. I just gave them the GoodYear part number and they said it was replaced with the Dayco hose.
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Well, following the advice on this forum, I picked up some Trans Cooler hose from O'Reilly to change mine out with and honestly it cost about the same as the fuel line hose, it's all cheap enough to just know that it's done right. Rob, whether you're right or wrong your concern is greatly appreciated and probably helped me out, or at least with pissing off wifey for spending another day in the garage. :rofl:
That's all I was trying to do ... HA!
I don't believe that titan14 preferentially purchased the fuel line hose over the transmission hose or was even offered a choice between the two. I expect that he purchased and installed the fuel line hose and before learning about the difference and is reluctant, at least in the short term, to change out the hose.
Not exactly. I tried to purchase the transmission cooler specific hose, but the store i was at did not have it. Knowing full well that fuel hose will also work without incident, i chose to purchase and use that versus driving all over town trying to locate and/or waiting to order the "transmission cooler" hose on-line.

Im not going to argue about this anymore. I used to make rubber hoses for aircraft, (fuel and hydraulic) and replace rubber O rings in aircraft hydraulic and fuel systems, so I do know a little something about what will work in the real world without the need to resort to chemistry lessons. In automotive applications, the difference between the two is the tranny hose is slightly thicker and stronger.

If I remember, and if i still am driving the same car 10 years from now, Ill try to make it back to let you all know how the fuel hose is still working just fine.
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