Bought my last Tecnocar filter

[karlcchen]

I remembered this guy when he first published his result in the web, shortly he said he received warning from xx company (he didn't said which) to remove his report otherwise he will face lawsuit. I don't remember when he started, but I think it maybe somewhere around 2000. He removed the report for a while (half year?)and then this info is now widely spread all over the internet.

Very funny, because his report is next to useless as far as filter engineering is concern. What I am interested are:

1. Filtration efficiency on various particle sizes. For example ISO 4548-12 test.
2. Oil pressure drop measurement at specified flow rate. or measure flow rate at certain oil pressure.
3. Measure by-pass valve opening pressure when filter clogged.
4. Measure element burst pressure
5. Test durability of element over specified period at maximum permitted oil temperature. See if resin that hold element together would come apart.

This kind of test is absolute beyond what anyone can do in his garage. It requires advanced filter test lab with proper equipments and properly trained staff to conduct each test scientifically.

All he has done was causal visual inspection and his personal viewpoint on construction of various filters. He didn’t know what are the critical areas to look for in visual inspection either.

For example the most bascis:
What kind of filter material and design used in each filter? Paper or synthetic fiber element?
What kind of rubber material used in the gasket and the anti drain back valve?

BTW, his test samples were too old too. Quite a few companies has re-designed their filters since then. AMSOIL has made great progress on their "Ea" oil filters.

Karl

>>According to this website, the Amsoil, Hastings and Baldwin filters are similiar in construction and probably made by the same folks if truth were to be known.
http://minimopar.knizefamily.net/oil...study.html#sae
This fellow says he is using Baldwin and he spent all this time and money cutting up filters, speaks volumes to me! Baldwins seem to be exceptional considering their low cost.

[VELOCEMAG]

Check out this site.
http://www.bobistheoilguy.com/

[ChazzyD]

I agree Karl, most of us can only hold two filters in our hand and give them a good visual comparison to decide which one goes on the car, not a real good method of picking a winner. Armed with some specs from the manufacturer and you have a little more to go on, but not much more really since it came from the people that made it, most info is just marketing these days.
Charles

[AlfaDue]

This won't add anything to the thread but from the Alfa karma zone: I ordered some parts a long time ago for the 71 spider. I received a Baldwin b-233 oil filter which I could not use because I still had the old canister style filter. All this time I have wondered what to do with it, and now after buying a 164L here it is in my lap waiting to be used!

[ChazzyD]

FYI, You can now buy Baldwin filters on their website. BF Web Express :: Air Filters, Oil Filters, Fuel Filters, Lube Filters, Coolant Filters
You can use a B233 or a B163, the 233 is 4 3/8" long and the B163 is 3 7/8" long, both Full-Flow, Anti-drainback Valve, 8 PSID by-pass valve filters. I've been using the longer B233 without problems and my car has the oil cooler.
Charles