Prefill Oil Filter

Fake-Account27 · Mar 30, 2023

I know this has been asked before, but I am going to ask again. 2018 Ram 2500, cummins. Do you or do you not pre fill the oil filter.

So far I have always pre filled, but man does it suck to replace a full filter. I just watched a video of a mechanic who does not pre fill.

Fuel35 67 · Mar 30, 2023

It’s not necessary, nor is there anything wrong with filling it up.

Wallyb4 · Mar 30, 2023

That is up to you. I know on my 2014 2500 there is no way I can pre fill a filter.

JW2 Innovations · Mar 30, 2023

Using one of these?

https://www.amazon.com/Herramienta-filtro-aceite-2013-2018-utilizada/dp/B07GF7Y5F8/ref=mp_s_a_1_7_sspa?crid=121L61GJCZ2I2&keywords=ram+2500+6.7+oil+filter+cap&qid=1680186869&sprefix=ram+2500+6.7+oil%2Caps%2C120&sr=8-7-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyQ01VNjNYUUlUR0pIJmVuY3J5cHRlZElkPUEwOTUyMzAxUFBKQzhYU1JMMk1aJmVuY3J5cHRlZEFkSWQ9QTA2NTAzMzQyT0syRUsxNENJMEYmd2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfbXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

Fake-Account27 · Mar 30, 2023

TJW961 said:
Using one of these?

https://www.amazon.com/Herramienta-filtro-aceite-2013-2018-utilizada/dp/B07GF7Y5F8/ref=mp_s_a_1_7_sspa?crid=121L61GJCZ2I2&keywords=ram+2500+6.7+oil+filter+cap&qid=1680186869&sprefix=ram+2500+6.7+oil%2Caps%2C120&sr=8-7-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyQ01VNjNYUUlUR0pIJmVuY3J5cHRlZElkPUEwOTUyMzAxUFBKQzhYU1JMMk1aJmVuY3J5cHRlZEFkSWQ9QTA2NTAzMzQyT0syRUsxNENJMEYmd2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfbXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

Yes I have one of those, it still sucks. I have yet to figure out how to change the oil on this truck without spilling some. I change it on a tarp which helps. The oil filter location just sucks.

danielmid · Mar 30, 2023

I usually prefill, but recently have seen several videos why you shouldn't prefill (oil you pour in the center of the filter goes straight in to the engine so any contaminants run in with no filtration) so I will probably stop prefilling here on out.

John Jensen · Mar 30, 2023

I've never prefilled. I've never seen a dealer prefill either.

18CrewDually · Mar 30, 2023

The oil pumps move such a large volume of oil quick enough there is no reason to prefill.

Rlaf75 · Mar 30, 2023

If you're able to do so it wouldn't hurt to fill it. It's not really a big deal if you dont

JW2 Innovations · Mar 30, 2023

Fake-Account27 said:
Yes I have one of those, it still sucks. I have yet to figure out how to change the oil on this truck without spilling some. I change it on a tarp which helps. The oil filter location just sucks.

I agree, location is terrible. I've used that device and I can't myself get to zero oil spill either, but to date short of a relocation solution it's the best I've come across to so far.
Different topic, but I recently added a centrifugal solution I fabricated myself without needing the air pump used on the Dieselcraft Model OC-25, and the return drain hose for that is now right next to the oil filter as it goes into the forward oil drain connection in the block. So I may end up relocating the oil filter yet! Will see on next oil change how much it irritates me.

JW2 Innovations · Mar 30, 2023

danielmid said:
I usually prefill, but recently have seen several videos why you shouldn't prefill (oil you pour in the center of the filter goes straight in to the engine so any contaminants run in with no filtration) so I will probably stop prefilling here on out.

Can you share those links to videos? I understand reference to flow, but new filter and oil and keeping things clean while engine exposed during an oil change I would think you'd be at very minimum risk overall. Can "it" happen, sure. How likely though? Educate me please if I'm wrong, seriously asking.

danielmid · Mar 30, 2023

TJW961 said:
Can you share those links to videos? I understand reference to flow, but new filter and oil and keeping things clean while engine exposed during an oil change I would think you'd be at very minimum risk overall. Can "it" happen, sure. How likely though? Educate me please if I'm wrong, seriously asking.

These are the two most recent ones I've watched I think.
https://www.youtube.com/watch?v=_J6fOPeG4Hs
https://www.youtube.com/watch?v=yr59m2Qq3P0

PolarisCobra · Mar 30, 2023

My guess is that there are lots of 250,000 mile engines out there running just fine that have never been treated to a prefilled oil filter. My feeling is that it is more trouble than it is worth.

Gr8bawana · Mar 30, 2023

PolarisCobra said:
My guess is that there are lots of 250,000 mile engines out there running just fine that have never been treated to a prefilled oil filter. My feeling is that it is more trouble than it is worth.

^^^Bingo^^^
There's probably a lot of 500,000 mile engines out there with zero problems as well.

06 Dodge · Mar 30, 2023

I did so on my old 5.9 CTD as it was easy to install the oil filter, I've noticed that the location of the filter on the 6.7 is not in the best of places for installing a prefilled oil filter and I've read of many 6.7 with over 300K that never had the oil filter prefilled...

DodgeDude99 · Apr 3, 2023

2014 2500 6.7, I pre fill the oil filter 3/4’s of the way before I install it.
I also put a piece of self stick DA sand paper on it for grip-tion.

Kabitz · Apr 3, 2023

I changed my oil last week and didn't prefill the filter and put 800 miles last weekend, Im happy to report the truck runs just fine.

jimmyfjk · Apr 3, 2023

i prefill but only enough that the material will soak it up so as not to have it running out when trying to install the filter. why start an engine with a dry filter that has to fill up before the oil will flow.

Aircommuter · Apr 3, 2023

More oil is always better than less. Lots of vehicles have side mounted and down mounted filters. So you can’t always prefill. The talk of contaminants going into the engine is crazy, what is that person pouring in? Used oil? It keeps saturating the media as you fill also. Someone mentioned dealers don’t do it. HaHa, dealers don’t do a lot of things that doesn’t make it good! They do whatever they can get away with.

TotallyHucked · Apr 3, 2023

Because it makes a mess, don't worry about it. Unless you drain the old stuff and let the engine sit for a year before firing up, there's still plenty of oil film on everything to protect it for the first couple seconds till it builds oil pressure. When I builT the LS in my square, I didn't prime the oil pump or anything, just fogged the whole thing and had assembly lube on the new cam. It had oil pressure within 3.2 seconds and has been fine.

Prefill Oil Filter

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