Oil Filter Removal?
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
As for the unfiltered oil being put through if you fill it through the big opening. Okay, I UNDERSTAND why Caterpillar would say this. Out in the field when servicing equipment that is sitting in the sand, clay, mud, etc. It is very easy to have something foreign contaminate the oil coming out of the jug you are pre-filling the filter with. Standing in my driveway or a garage, doing an oil change, much less likely to happen. If there are contaminants in the "unfiltered" oil coming right out of a jug of Rotella, Mobil 1, or Schaeffers, etc. We have bigger problems afoot.
Super Moderator
Joined: Dec 2011
Posts: 13,290
Likes: 6,063
Racor, a filter designer and manufacturer, has this to say regarding new fluids...
Fluid should always be filtered
before being put into use. New
fluid is not necessarily clean fluid.
Most new fluids (right out of the
drum) may be unfit for use due to
high initial contamination levels.
Contamination, both particulate and
water, may have accumulated during storage.
Of course, this is coming from a company whose bread is buttered by the sale of filters for many oil applications, including the dispensing of hydraulic fluids from bulk storage, where the above paragraph was pulled from. But the idea of new oil shipping with contaminants does give a bit of pause. However, the new oil I pour from the bottle is still so much cleaner and clearer than the used oil I just drained, it seems a bit obsessive to worry about it. Not that I'm unfamiliar with obsessive.
Fluid should always be filtered
before being put into use. New
fluid is not necessarily clean fluid.
Most new fluids (right out of the
drum) may be unfit for use due to
high initial contamination levels.
Contamination, both particulate and
water, may have accumulated during storage.
Of course, this is coming from a company whose bread is buttered by the sale of filters for many oil applications, including the dispensing of hydraulic fluids from bulk storage, where the above paragraph was pulled from. But the idea of new oil shipping with contaminants does give a bit of pause. However, the new oil I pour from the bottle is still so much cleaner and clearer than the used oil I just drained, it seems a bit obsessive to worry about it. Not that I'm unfamiliar with obsessive.
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
I understand the logic, especially in a shop setting where you are pumping out of a 55 gallon drum that may have been sitting for an extended period of time, maybe spanning a couple of seasons and changes in humidity, and weather, subjecting it to lots of condensation and the taking off and putting on of caps and pumps, etc. But a gallon jug right from the shelf, I would THINK it might be pretty clean, but maybe I am being REALLY naive.
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
The only item of caution that I can think of in regards to pouring new oil into the large opening of the filter is when the container utilized a foil spout seal. If the user doesn't completely remove ALL of that seal, then there is a possibility that a small piece of that material could find it's way into the clean side of the filter. It wouldn't take much for that material to partially or fully obstruct an oil gallery passage and starve something of lubrication. That would be a very bad thing.
Super Moderator
Joined: Dec 2011
Posts: 13,290
Likes: 6,063
That is the worst part about pouring any fluid... those difficult to remove, easy to tear foil seals. That is the only time when I miss the days of piercing a pointed metal spout through a metal topped card board canister of oil... ah, the days before plastics.
Thread Starter
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Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
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Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
I have at one new OA from both Amsoil and Shcaeffer from about 7 years ago (both reports are for their full synthetic 5w40 diesel engine oil). When I find them, you will have to keep in mind that all of the oil companies have adjusted their formulations within the past several years due to progressively tightening environmental legislation, so it's not necessarily up-to-date info for specific chemistry. The reports will at least show a relative comparison of "contaminant" levels. Problem is that the reports are on my laptop at home, and I work really hard to not even open up that thing once I get home from the office because I'm beyond tired of looking at a computer screen by the time the day is over. I'll try to chase them down this weekend and post them back up.
Senior User
Joined: Aug 2015
Posts: 311
Likes: 0
From: Iowa
I will be changing my oil today and hopefully I do not have this problem. Last oil change by PO was at Ford. Crossing my fingers.
Question though. Should I poke a hole in the bottom of that filter and let it drain before I remove it?
I am switching from Dinosaur oil (10w-30 I think) to Rotella T6...if UPS delivers my other 3 gallons on time today.
Question though. Should I poke a hole in the bottom of that filter and let it drain before I remove it?
I am switching from Dinosaur oil (10w-30 I think) to Rotella T6...if UPS delivers my other 3 gallons on time today.
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
I always drain my filter before removing it, and then slip a 1-gallon ziplock bag over the filter as I spin it off the mount so I can just close it up and toss it in the garbage with no drip or fuss.