The Original, don’t be fooled by the cheap copies.


K-Trans® F1


get a sample of your oil and compare.

Oil sample from our 2015 Chevy Duramax with 213153 miles on the truck and 11,386 miles on the oil


We have developed the K-Trans F1 adapter. Everything about the adapter has been designed for more flow, Stronger and with guides on the edges of the hex head to assist with one handed installation of the filter.  The Best Oil Filter for a Duramax.

The CAT 1R-1807 filter starts at 4 microns @ 20% efficiency and at 20 microns is at 100% efficiency. It isn’t just a better at filtration; it has 3 times more media. The CAT media is 2.11 times longer and the pleats are 1.13 deeper making the CAT filters area 2.39 larger than the ACDelco. That means 25/30% more area than the ACDelco. 

More Capacity 

Holds 2 extra quarts, although other filters claim they have better filtration they have nowhere to store that dirt. When they get full and when you start the truck, when you step on the gas the bypass valve opens. Letting unfiltered oil through your engine, of course it’s better to have unfiltered oil then no oil, but, have you ever heard of an oil filter failing and stopping the oil flow? I mean ever? “You don't have to be a genius to figure out that a smaller oil filter has less cumulative dirt-holding capacity and perhaps higher flow restriction - a concern with high rpm's or low oil temperature engine starts. However, we have to trust that these smaller filters will be adequate for 3,000- to 7,000-mile oil change intervals; but there is real risk that they will burn off long before a second oil change at 8,000 to 15,000 miles.”

Longer Life

“Finding 1: For any type of vehicle, oil drain intervals can be simply and safely extended beyond their current level to the maximum mileage recommended by the vehicle/engine manufacturer, or further.

Finding 2: Fleet operators can further extend oil change intervals by using higher quality oil and by using oil analysis for determining optimum drain intervals.

Finding 3: In larger engines, HE oil filters are an effective and economical technology for extending oil drain intervals.” 

Better Construction

* Acrylic beads to prevent pleat bunching 

* Spiral roving for greater pleat stability 

* A nylon center tube to prevent metal contamination 

* Molded end caps to prevent leaks 

* A one-piece canister with folded edges to withstand greater pressures and eliminate leaks 

No Bypass Valve

“If your oil filter becomes plugged before it gets changed, the oil will go into bypass, leading to accelerated engine wear. When your filter goes into bypass, it is no longer working. While your engine will not be starved of oil, particle concentrations will continue to grow in the oil by as much as 100 times normal levels. When you have 100 times more dirt, you will have no less than 100 times more wear associated with particle contamination. Sadly, car makers don't build cars with oil filter bypass alarms.” 

Cost-Benefit Assessment

“Costs for filters and elements, oil analysis, and labor were balanced against those of lower motor oil purchases, reduced used oil generation and other savings. Proposed extended drain intervals were established from demonstration vehicle results based on oil quality criteria and fleet operator comfort with engine safety. Estimated economic payback periods were determined based on the cost-benefit analysis for each fleet studied. Table 1 shows payback periods for HE filter-fitted fleets ranging from 1.3 years to 6.8 years. Periods were highly dependent on engine sizes and drain extensions achieved. Oil drain extensions on passenger vehicles had much shorter payback periods primarily because savings from reduced motor oil purchases were offset by only oil analysis test costs. Over time, the overall economics and payback periods should improve, primarily because as fleet managers became comfortable with drain extensions, they typically reduce the number of oil analyses they collect. While not included in this cost-benefit analysis, there will also be an added benefit of increased fleet operating time in the field for many vehicles. Hence, the calculated periods in Table 1 are conservative.” 

Designed for Diesel trucks

Caterpillar has been around since 1926. Do you remember Chevy’s first Diesel, Yeah the 5.7 a converted Oldsmobile gas engine. So any thoughts about the engineers knowing what they’re doing?

Synthetic Oils

“A popular topic concerning the difference between mineral oils and synthetic lubricants is service life. Synthetic lubricants as a class don't show their age, particularly at high temperatures, and have a longer service life. Often, the change interval is several times longer for synthetics at identical operating temperatures; however, the exact number depends on operating conditions, the additives and the specific synthetic used.” 

Oil Samples


Oil samples are the key to finding good filtration, anybody, I mean anybody can tell you their filter setup is better than anything else out, but the oil sample is what measures the oil filter performance.

Now first let me say, oil filter performance is a cooperation between the oil and the oil filter. It’s the oil’s job to prevent wear, and it’s the filters job to remove the wear elements from the oil once the wear has gotten into the oil. I use Royal Purple, I have found it to be the best I have tested, and I have used it for the last 12 years, but if it’s not available or cost preventive that it is more important to use the best filter you can find. 

Note: if your truck is over 100,000 miles you should get an oil sample. They are only $20.

There are a lot of filter manufactures out there, although they all compare themselves to the best filters out there, that itself says something like they know who the best filter is. See in around 1986 Caterpillar started to make their own filter because the ones currently available at the time were suspected in causing equipment failures. Let me clarify a little, when a filter is made with stamped steel parts there is a magnet field that is generated by the metal parts being pressed into shape and the holes punched into the metal. After dozens of times the dies start to retain the small metal fragments and slowly over time deposit them on the pieces of metal stamping. 

This process carries the metal fragments into your filter. Caterpillar acknowledged this and decided to make a better filter. They constructed a plant that would manufacturer their own filters. Making sure that there was nothing in the assembly process that would find its way into the engine and later cause damage and need to repair an engine. Since when a large company buys a piece of Caterpillar equipment, they also purchase Caterpillar service for the warranty period. So, they insist on using Caterpillar filter. With all of that being said when a company as large as Caterpillar decides to make their own filters for these reasons, I took notice. 

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5 year old grandson installing the K-Trans® adapter and Caterpillar filter.

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