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Old 04-14-2019, 12:41 PM   #1
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Cat filter vs. ???????

Being new to diesel maintenance and looking into C7 HEUI being a high failure due to lack of oil services the question came up in my mind, is there a different in filters and which one should I use? Any input from all of you DP gurus would be most appreciated.
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Old 04-14-2019, 01:42 PM   #2
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I have been buying Donaldson from Freightliner. The tell me Donaldson makes Cat's filters. C7 oil filter is $13.50.
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Old 04-14-2019, 05:22 PM   #3
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Well, That's a matter of opinion for the most part. I use Donaldson exclusively elsewhere on my coach however when it comes to the engine oil filter I have and will use Cat filters until I receive verification from Donaldson regarding accurate nominal micron capability. I'ts not only the micron rating but also the amount of particulate the element can hold. "High Capacity" term is ambiguous with out data to substantiate change frequency.

Also, you should also focus on the injectors regarding particulate size maybe more than the HEUI. If you focus on the injectors, the HEUI will be happy. Although the HEUI has tight tolerances, the injectors are even tighter in my measurements taken on a coordinate measuring machine.

Keep your oil change frequency between 5-10K and you should experience return on your investment.

Good Luck.
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Old 04-15-2019, 08:28 PM   #4
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There is one thing to remember when getting Cat filters for your motor, get the right filter for your motor. I use the Advanced Efficiency Filters where some motors may need to use Standard Efficiency. The Advanced run about $10 more per filter, has increased contamination control without giving up capacity.

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Old 04-16-2019, 09:23 AM   #5
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Been using Wix forever.
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Old Yesterday, 08:58 PM   #6
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I've seen the cutaways and the test specs. CAT filters are the best. I've also seen filters manufactures that were really good then they started cheaping out. I've also seen a manufactures making terrible filters start making really good filter. One thing to remember its very hard to prove a filter caused a problem. The only incentive a filter maker has to make good filter is because they want to. An equipment manufacturer wants a good filter to keep their product from failing and they get to sell another machine- they've got more skin in the game year after year.

When an injector fails who do you blame? Cummins ,Caterpillar for making bad parts or the filter you've been putting on. Yep thought so.
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Old Today, 06:59 AM   #7
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Quote:
Originally Posted by 2 Stroker View Post
I use the Advanced Efficiency Filters where some motors may need to use Standard Efficiency.
Why would some engines need the Standard Efficiency filter? I would think the Advanced filter is always better - but just may not be required in some engines (like running premium gasoline when the car calls for regular).

Is there a situation on engine where running the Advanced filter would be harmful?
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Old Today, 07:54 AM   #8
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No, using a advanced filter is not harmful. It offers better filtering-smaller particles- or larger capacity or better cold weather performance (less bypass pressure in cold conditions.
It is offered as a better filter than the standard filter. And in some cases is the recommended filter to use ie on the HEUI pump. Most crossover will fit filters do not match advanced filter specifications, but a standard filter. Some do you just have to be through in selecting it. Safe Travels
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Old Today, 07:59 AM   #9
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Quote:
Originally Posted by CountryB View Post
Why would some engines need the Standard Efficiency filter? I would think the Advanced filter is always better - but just may not be required in some engines (like running premium gasoline when the car calls for regular).

Is there a situation on engine where running the Advanced filter would be harmful?
I don't know the reason. All I know is I try and use the best filters I can for my coach and the Advanced is the one I use. If you want to spend less money of something this important use the Standard filter or an off brand but here is where I got my info. This filter fits my motor S/N as noted in the search bar.
https://parts.cat.com/en/catcorp/oil...tId:undefined&
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Old Today, 09:44 AM   #10
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Been using Cat fuel filter on my 2008 Chevy Duramax for years. Stock filter wouldn't flow enough fuel. It filters to 4 microns instead of 14 higher flow and only cost 17 dollars instead of 40 to 60. I think Cat filters are better quality than other filters. When I had Cat equipment before I retired I always used there filters.
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