Donaldson Oil Filter

[troyb43]

I just recently got my father a Donaldson oil filter from Amsoil and the Amsoil number is P550428. One thing he noticed different from any other filter he has used was when pre-filling it with oil, one pour filled it to the top, other filters take 3 or 4 pours to fill it up as the filter soaks up the oil and the level drops. Anyone have any experiences like this, or know what the difference is to cause this? The filter is being used on his motor home with a Cummins 5.9 engine, oil used is Amsoil AME 15w40.

 

[chubbs1]

This is what I was told by a Donaldson tech by phone as I noticed the same thing on a filter I changed for a neighbor that owns a diesel, because on smaller filters I had no problem so I was concerned.
(paraphrased) "It is denser media and Donaldson puts a 'safe' coating on the paper to prevent moisture retention from humidity to extend stored filter life."
Who knows it may a load of "blank" but if she runs well then no big deal.

 

[goodtimes]

The oil must be going real fast through the media, real slow, or around it. I always take maybe 4-5 pours and it still goes down below full, if I wait long enough, on any filter I've used. I would tend to think real slow flow through the denser media, by gravity only, makes it look full in these cases. That is somewhat thicker oil too.

 

[bullwinkle]

Be VERY careful not to let ANYTHING get into that filter when you fill it like that-even a tiny piece of foil seal or even plastic from the bottle-it will go straight into the oil gallery, possibly clogging a piston cooling nozzle. IMHO, an unacceptable risk!

 

[boxcartommie22]

donaldson's flows really well!! with very very low psid..my donaldson did that too when i was using paper filters...this is a good thing and not to worry

 

[ltslimjim]

I prefer using Qt bottles, that don't have the foil seal, to pour into my replacement oil filter before I install it at oil change time. That is my only gripe about large gallon or 5/5+ Quart value jugs. The foil seal. I do like the gallon jugs of Amsoil with the pull tab. Why can't other oil companies get with it?

 

[troyb43]

Thanks guys for the comments. Since this is something I never experienced, I knew someone here likely would have and know why. Am pretty sure my dad would be careful not to let the foil or anything else get into the filter, and he was pouring it from a 2 1/2 gallon jug, which I am sure was a lot harder than it would have been from a quart bottle. Two jugs changed out the engine and the generator, so he is good to go for the next year.