Factory oil filters vs. After Market oil filters - READ ONLY

100 messages, Last post on Feb 13, 2001 at 5:48 AM

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#52 of 100 JUSTIN by ryanbab Jan 10, 2001 (8:13 am)
Warrenty will be valid as long as you keep detailed (receipts and dates) of your oil changes. On my silverado the oil pan drain plug is magnetic. I have yet to notice any shavings on it though. The first oil change was done by the dealership cause an AC Delco filter could not be found. Now they are plentiful My first change was done at 2795 miles. Second at 6000 exact third was like 9200 i switched to M1 oil Ryan
#53 of 100 by bottgers Jan 10, 2001 (9:20 pm)
I found an independant lab study on oil filters by typing in the key words "oil filter testing". Here are some of their findings: They found the two best filters were the Mobile 1 and Purilator Pure One, with the Mobile 1 being the slightly better of the two. They were chosen because of their superior flow capabilities, high pressure tolerances, filtering abilities, and component materials. The also stated that all OEM filters were made by various aftermarket companies. They actually had a list of filters which were not recommended. Fram was at the top of that list. This was a shock to me, as I've used Fram filters all of my life. In fact they referred to Fram filters as "junk". They said all of Fram's filters have a paper element which many times separates from the canister, and peices of the element can actually dislodge and enter your engine, causing damage. They said of the three Fram filters available, only the medium priced filter was OK to use. They said to stay away from the cheapest, and the most expensive ones.
#54 of 100 Frams by armtdm Jan 11, 2001 (5:45 am)
Yes, have been known to be junk for years. My experience after 9 years of oil analyis, synthetic oil and extended drains has led me to conclude that there are only three filters worth buying. Pure One, Amsoil/Hasting and Mobil 1. Even the OEM filters did not produce the same results as the previous three mentioned. Like most things in life, 90% of the time you get what you pay for. Of course, not true with Castrol Syntec which is not a true synthetic as noted in the Nov issue of Car and Driver, but you pay the inflated price for it!
#55 of 100 bottgers by vadp Jan 11, 2001 (9:18 am)
Who are "they"? A link, maybe? Thanks.
#56 of 100 by bottgers Jan 11, 2001 (3:05 pm)
"They" would be lab technicians.
#57 of 100 bottgers by vadp Jan 11, 2001 (3:32 pm)
So, independant lab technicians? Is it a trade union, or something?
#58 of 100 by bottgers Jan 11, 2001 (4:33 pm)
I guess I don't know what you're asking. If you use key words "oil filter tesing", you should be able to find this web site. Unfortunately, I don't remember the site address. Give it a try.
#60 of 100 bottgers by vadp Jan 11, 2001 (4:48 pm)
Okay, I was hoping that you found a new site similar to the old one: http://members.nbci.com/minimopar/oilfilterstudy.html My mistake. Sorry.
#61 of 100 You want to talk Independent labs? by biyonic1 Jan 11, 2001 (8:23 pm)
As an engineering student I toured an independent lab that tested filters and oil for the companies. During the tour we got to hear horror stories of some oils and filters that were actually nastier than used oil and filters. This applied to OEM's as well! When asked what the best oil and filter was - this person could not tell us due to him working for the lab. So we rephrased our question, "What oil and filter do you use in your car" Fram and Penzoil.

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