By-Pass Oil Filter Update

[CareyWeber]

I just had a great chat with a Donaldson Engineer (Jerry) about my by-pass oil filter system. I currently use a Donaldson P551550 filter per the great one AKA Dr Lee :cool: .

The Engineer pointed me to a newer filter for the same filter head P560693 (P179089 is the long version) its about $18.00.
http://www.donaldson.com/en/ih/support/datalibrary/000697.pdf


He also said that this filter would filter even better, but the price is high ($53.00) and would require a new filter head.
http://www.donaldson.com/en/ih/support/datalibrary/000644.pdf

Dr. Lee do you think these are worth the extra $$ for what they remove. What do you think of the new standards for measuring what a filter can remove?

ps I've been running the P551550 by-pass filter with mostly Baldwin's B1428 full flow filter (with a Fram TG5 at times when I can't get the B1428)since about 55,000 miles and currently have 178,000 miles on my 97 6.5 without any internal wrenching.

Carey

[ 06-11-2004, 04:20 AM: Message edited by: CareyWeber ]

[CleviteKid]

Hi Carey,

Good Stuff. I still have 5 of my original 551550 bypass filters in stock, so I don't need any others right away. The beauty of the bypass filter is that the oil keeps going thru it over and over, so a beta 1000 rating is not so important. But I do like that the Synteq 2-1/2 is rated so much better than the cellulose in the filters we have been using.

What is the current price for the 551550, to put things in perspective?

Dr. Lee :cool:

[CareyWeber]

Originally posted by CleviteKid:
Hi Carey,
What is the current price for the 551550, to put things in perspective?

Dr. Lee :cool: Its still right at $6.00, so that makes the $18.00 P560693 kinda hard to swallow.


I bought a case of the P551550's in late 2002, so I have about 6 left. I mainly called to find another filter head without a by-pass in it to install a by-pass on my scout.

Jerry said these all would also make good auto trany filters too.

Carey

[CleviteKid]

I am already using a Donaldson Synteq filter in the Fram PH-8a format as my tranny filter. So I guess I was taking Jerry's advice about 5 years before he gave it.

I am going to chat up my old filter contact and see if I can do better on the pricing. I will let you and the Members know what I find.

Dr. Lee :cool:

[CareyWeber]

Originally posted by CleviteKid:
I am already using a Donaldson Synteq filter in the Fram PH-8a format as my tranny filter. So I guess I was taking Jerry's advice about 5 years before he gave it.

I am going to chat up my old filter contact and see if I can do better on the pricing. I will let you and the Members know what I find.

Dr. Lee :cool: Dr Lee,

Do you have a by-pass valve in your trany filter?

Carey

[CleviteKid]

According to my Donaldson Catalog, there is a relief valve set at 8 to 11 psi.

Dr. Lee :cool:

[CareyWeber]

Originally posted by CleviteKid:
According to my Donaldson Catalog, there is a relief valve set at 8 to 11 psi.

Dr. Lee :cool: Thanks

Carey

[Phil Holmen]

how do you guys have this set up as a tranny filter?? just inline to the coolers??