Fumoto F-104

[Newsa]

you don't get all the oil out of an engine when you drain it. probably get 80 to 90% at best. Anybody ever had to do an inframe or bearing roll in or any other sort of repair that involved being under the engine with the oil pan removed knows that if they spend any amount of time under that drained engine knows they will look like a spotted owl by the time they get out from underneath. That is why its pointless to try to get that last ounce. You never will.

its like everything else on this subject. the oil pan has a nominal 12 quart capacity on these pickup truck engines. then you have a dipstick which at best is just a method of gaging a liquid that is laying in the pan. if it is a quarter inch over or under it really doesn't matter. Seriously, you just don't want the oil level so high the crankshaft throws start going thru the lube oil and churning it into foam, then you lose pressure. As far as being underfull, obviously you want as much oil in there as is safe, but the main problem with the oil being low but not too low is just that since oil also acts as a coolant and there isn't as much in there as should be, it gets hotter than it needs to be. Only time low oil level causes low oil pressure is when its so low you start sucking air, such as when stopping quickly or going around corners.

If you think about it (overanalyze it)

The only reason that manufacturers recommend changing oil when oil is hot is to get the maximum amount of old oil out of the oil pan. And when that hot oil comes out fast, it sweeps out particulates that settle in the bottom of the pan because the oil comes out like out of a fire hydrant like someone said.

The Fumoto valve probably Doesn't do harm, but I'll never be convinced It's worth getting

 

[Cummins12V98]

"Or maybe the engines are shipped without the pan and oil and It's mopar?"

NO!!!!!!!!!!!!!!!

 

[Cummins12V98]

"You can see there is no sealing washer."

Washer is part of the plug.

 

[Newsa]

"You can see there is no sealing washer."

Washer is part of the plug.

What is the part number of just the sealing washer? I don't want the whole plug/washer assembly. Just the sealing washer

 

[6V92TA]

[QUOTE="

The Fumoto valve probably Doesn't do harm, but I'll never be convinced It's worth getting. What is the part number of just the sealing washer? I don't want the whole plug/washer assembly. Just the sealing washer[/QUOTE]

not trying to convince anyone. the EZ Drain valve is just a convenience. a 20 dollar convenience.

does anybody need it.. not really. its just easy, thats all it is.

as far as the sealing washer goes, its part of the drain plug so unless you want to replace the whole plug you are SOL

 

[MarkEagleUSA]

Geno's sells replacement washers.

 

[Newsa]

Geno's sells replacement washers.

I noticed that, but I thought those were only for the aftermarket magnetic drain plug they sell.

 

[Cummins2014]

Geno's sells replacement washers.

Although Genos washer is not even close to the same as the OEM ,it might work okay. The OEM is somewhat of a o-ring style washer inset into the plug, and does not look like its replaceable, after looking at it a little closer.

That washer from Genos would probably sit down on that OEM plug, and seal okay, I guess it would be worth a try , That O-ring style washer sits pretty flat on that OEM plug, does not stick up hardly at all, I could see it wearing out over time.

 

[Cummins2014]

I noticed that, but I thought those were only for the aftermarket magnetic drain plug they sell.

I think you are right

 

[Newsa]

I think if you try to use 2 gasket washers, they won't seal. It would be like using 2 gaskets on the oil filter by leaving the old one on. They would flex alot at that torque and not seal at all?????

 

[Flash1034]

I’ve had Fumotos on my last 3 trucks. It’s really nice changing the old without that small inevitable douche of oil you get when removing a drain plug.

 

[crispyboy]

I thought I would buy the Fumoto drain plug one time but the more I studied the design I knew it would not allow a certain amount of old oil to drain.
Thanks to the OP for confirming what I thought.
I have only replaced a sealing washer on the bottom of a farm tractor hydraulic sump one time. Otherwise I have never had one leak or strip any threads. A simple snug up with a wrench works every time.

 

[6V92TA]

it comes down to personal choice. do you mind using a wrench to drain your oil or do you value the convenience of the no tools necessary drain valve.

 

[kthaxton]

it comes down to personal choice. do you mind using a wrench to drain your oil or do you value the convenience of the no tools necessary drain valve.

For me, it's not about tool free, it's about an easy way to control the flood, and ease of sampling....if one does that.

As said, if someone wants the control of the Fumoto, but is worried about an incomplete drain, just remove it when the flow stops and let the rest (if any) come out.

 

[Cummins2014]

For me, it's not about tool free, it's about an easy way to control the flood, and ease of sampling....if one does that.

As said, if someone wants the control of the Fumoto, but is worried about an incomplete drain, just remove it when the flow stops and let the rest (if any) come out.

Thats exactly what I am doing, and will continue to do so, and yes for me there is a significant amount that comes out after letting the fumoto drain.

 

[Flash1034]

On a 12 quart system, the small amount the Fumoto leaves in is insignificant.

 

[Cummins2014]

On a 12 quart system, the small amount the Fumoto leaves in is insignificant.

If you think over 18 oz., thats over a pint, is insignificant, then so be it . I don't , and I will continue to do what I do . The object when changing oil is getting all the old oil out that's POSSIBLE, and when that Fumoto of mine allows that much old oil to be left in there, thats not getting it done.

 

[Newsa]

If you think over 18 oz., thats over a pint, is insignificant, then so be it . I don't , and I will continue to do what I do . The object when changing oil is getting all the old oil out that's POSSIBLE, and when that Fumoto of mine allows that much old oil to be left in there, thats not getting it done.

I agree.

However, amsoil who says their signature series is good for 25k expects you to change your full flow (OE) filter between 12k and 15k miles. (Except their filter made by Donaldson they say can go 25k). That would mean using the same oil for 2 full flow filter changes.

On the other hand, their (amsoil's) smallest bypass filter is rated at 60,000 miles. So that means using their synthetic oil, they recommend using the same bypass filter through 2 oil changes. Doing so would leave almost a quart in the filter, and probably almost another quart adhering to engine parts throughout the engine.

I don't like leaving old oil in the engine. It doesn't give me peace of mind. So I change both filters (full flow and bypass) at each oil change.

Doubt I would be comfortable leaving a half quart (or more) in the pan and another 3/4 of a quart elsewhere in the engine

 

[6V92TA]

when a difference makes no difference, some people will still worry about a difference. LOL

 

[Cummins2014]

when a difference makes no difference, some people will still worry about a difference. LOL

The difference is what it is, and the simplicity of letting it drain as completely as possible is NOT a big deal, am I worried about, no. Its just a simple fact of what that Fumoto is doing.