Not feeling good about the PF66 filter

[Rusty59!]

Update: still waiting for the machine shop to make the new adapter. He had to order the 1”-16 tap which is not a standard size. That’s all he’s waiting on.
More news later.

 

[Rusty59!]

Update: still waiting for the machine shop to make the new adapter. He had to order the 1”-16 tap which is not a standard size. That’s all he’s waiting on.
More news later.

Finally got the new block adapter today. Not cheap!!! I will hopefully get it installed next week

 

[Rusty59!]

Bypass installed. Added roughly 2 quarts to the system. Everything seems good no leaks! Give it a few weeks and hopefully it will clean up the oil.
I can supply the drawing and a 3D model if anyone wants it.

 

[gemarsh]

Are you dumping the filtered oil back into the fill cap?

 

[Rusty59!]

No it runs back to the filter mount on the block just like the filter works.

 

[Rusty59!]

Here’s a pic of the block adapter.

 

[SFLTruck]

Bypass installed. Added roughly 2 quarts to the system. Everything seems good no leaks! Give it a few weeks and hopefully it will clean up the oil.
I can supply the drawing and a 3D model if anyone wants it.

Nice install, I'm really wondering on the oil appearance and so on.

 

[Rusty59!]

Nice install, I'm really wondering on the oil appearance and so on.

I’ll update as I learn more. Hopefully I get some good results.

 

[Rusty59!]

This might help to understand how this system works.

 

[Rusty59!]

I have only driven about 300 miles since installing the bypass. No significant difference. Hopefully more miles will yield a measurable improvement. I’ll keep you posted.
Does anyone know what the particle size of the soot would be?

 

[gemarsh]

2.5-10 microns.

 

[Rusty59!]

The bypass filter is supposed to filter at 2 microns. We’ll see?

 

[H82looz]

Bypass installed. Added roughly 2 quarts to the system. Everything seems good no leaks! Give it a few weeks and hopefully it will clean up the oil.
I can supply the drawing and a 3D model if anyone wants it.

You’re not concerned about the filter hanging down so low (below the frame rail)?

Oil should be clean after 3-400 miles if it’s doing what they say it is. Amsoil‘s youtube video it clears up in like 1 minute.

 

[Rusty59!]

You’re not concerned about the filter hanging down so low (below the frame rail)?

Oil should be clean after 3-400 miles if it’s doing what they say it is. Amsoil‘s youtube video it clears up in like 1 minute.

I'm a bit concerned about the filter being the low but I don't really have any other options. I'm thinking about putting a shield around it.

As far as cleaning up the oil it has cleaned it up some but not as much as I had hoped. I did some research and found that particulate size is .5 to 2.5 microns in most cases. So I am good knowing the nothing larger than 2 microns will get through.

 

[H82looz]

Are you planning on sending your oil in for particle size analysis? Just curious.

 

[Rusty59!]

Are you planning on sending your oil in for particle size analysis? Just curious.

Yes. I already have the sample kit. Going to give it another few thousand miles and send it in.

 

[H82looz]

Oil looking any cleaner on the dipstick?

 

[Rusty59!]

Oil looking any cleaner on the dipstick?

Not really. A bit disappointed. I'm good knowing I have better filtration but still....
On the plus side I'm really happy with the millage this thing gets. For a 6000 pound truck it's great. I haven't towed yet but so far my lifetime average is 27.4 (4900 miles). No EV in my future.

 

[SFLTruck]

@ Rusty59!
As far a towing goes here ya go.


Miles.Gal.MPG


403 29.6 13.6


361 25.8 13.9


445 29.2 15.2


510 32.5 15.6


213 12.7 12.7


410 26.2 15.6


395 26.1 15.1


484 30.4 15.9


516 28.9 17.8


466 29.4 15.8

Trip2 reset prior to leaving




It really tows extremely well. From FL to Boston, Maine, Niagara Falls, Ohio, Nashville, Crossville and back to FL. For the record I have a 43 gallon Titan fuel tank installed. I also installed a set of airbags which makes the ride super smooth and really stops any "porpoising" from happening. Most of the trip we ran right at 65 to 68 max mph. My trailer loaded weighs in at 7K lbs and I can't really hate the 15.2 average mpg.

Was a GREAT trip....

 

[Rusty59!]

This is my milage driving from Michigan to Florida. 70 to 75 mph most of the time. I still don’t understand why GM doesn’t advertise this setup. They keep pushing the 4 cylinder????