Who was it who mentioned Fram oil filters and dropping oil pressure?
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From: larry moe 'n curly on 23 Nov 2009 12:34 n...(a)wt.net wrote: > It's a known problem on the orange Fram filters. The problem is the > anti drainback valves don't work. How much it effects the engine will > depend on the filter mounting and position. A Finnish magazine article from 1996 found no problems with any of the drainback valves tested, and Fram did not leak the most. Also how come you can blow into an orange Fram but not suck air from it? Money saving hint: doing that test in the store = free oil filter. :)
From: N8N on 23 Nov 2009 13:45 On Nov 23, 12:34 pm, "larry moe 'n curly" <larrymoencu...(a)my-deja.com> wrote: > n...(a)wt.net wrote: > > It's a known problem on the orange Fram filters. The problem is the > > anti drainback valves don't work. How much it effects the engine will > > depend on the filter mounting and position. > > A Finnish magazine article from 1996 found no problems with any of the > drainback valves > tested, and Fram did not leak the most. Also how come you can blow > into an orange Fram but not suck air from it? Money saving hint: > doing that test in the store = free oil filter. :) That's nice, but personal experience trumps a test any day. Time from cold start to oil pressure light going out on my old Dart, >5 sec. with a Fram filter. 1 sec. or less with a Wix filter. Guess which filter I've used ever since. nate
From: jim on 23 Nov 2009 14:58 larry moe 'n curly wrote: > > Hachiroku $B%O%A%m%/(B wrote: > > Who was it in the Subaru group that mentioned my low oil pressure might be > > caused by my using Fram oil filters? > > > > There may be something to this. > > > > I picked up yet another 1992 Grand Something-or-other (in this case, a > > Grand Caravan. The last two were V'gers...). It has 239,000 miles on it. I > > got it on eBay for $150 and had to go 135 miles to pick it up. To make a > > long story short, we had to cut and crimp one of the rear brake lines to > > get the thing to move without emptying the brake cylinder, and the plan > > was to drive it within 100 miles from home and call AAA..."It blew a brake > > line!" > > > > Today I gave it a 'service', oil change, air filter and tranny juice and > > filter. I used a Fram TG oil filter since if you bought a jug (5 qts) of > > Valvoline oil you got the filter $2 off. Maybe it's just on the Subaru? > > > > NOPE! After I changed the oil and took it for a test, the oil pressure > > guage had dropped a whole mark off halfway! I don't believe it! > > > > I'm going to wait until the next nice day, pull the oil filter and put on > > something like a Wix. Never had that problem with either OEM or Wix > > filters, and Wix got high ratings from Consumer's Reports. > > But in the Consumer Reports test, Fram (and Lee Maxifilter - Champion) > did even better and was not only top rated but also check rated, > meaning they did significantly better than the rest. They removed > something like 88% of the test particles (I think they were 20 or 25 > micron particles, but I don't remember if the test was single-pass or > multi-pass), compared to 70% or 75% for AC. The worst filter removed > 50%, and I think it was a depth filter. But here's the problem - a filter that works really well will also plug up sooner. If you put a filter that removes fine particles an old sludged up beater that has been accumulating fine particles in the crankcase for years it will plug the filter in a short amount of time (sometimes very short) and that will show up as low oil pressure. Even if the engine has not been abused If it used a filter for years that is letting the fine stuff through you can expect a filter that catches fine stuff to to load up in short order. If you notice the millions of new cars using Fram filters aren't the ones having problems. It is always the guys with the 30 year old beaters who tell of their the bad experience with the Fram filters. That is not to say Fram filters are high quality. They are cheap filters, but they are good enough if you change the oil often enough. -jim
From: Hachiroku ハチロク on 23 Nov 2009 15:41 On Mon, 23 Nov 2009 13:58:12 -0600, jim wrote: >> But in the Consumer Reports test, Fram (and Lee Maxifilter - Champion) >> did even better and was not only top rated but also check rated, meaning >> they did significantly better than the rest. They removed something >> like 88% of the test particles (I think they were 20 or 25 micron >> particles, but I don't remember if the test was single-pass or >> multi-pass), compared to 70% or 75% for AC. The worst filter removed >> 50%, and I think it was a depth filter. > > But here's the problem - a filter that works really well will also plug up > sooner. If you put a filter that removes fine particles an old sludged > up beater that has been accumulating fine particles in the crankcase for > years it will plug the filter in a short amount of time (sometimes very > short) and that will show up as low oil pressure. Even if the engine has > not been abused If it used a filter for years that is letting the fine > stuff through you can expect a filter that catches fine stuff to to load > up in short order. > > If you notice the millions of new cars using Fram filters aren't the > ones having problems. It is always the guys with the 30 year old beaters > who tell of their the bad experience with the Fram filters. > > That is not to say Fram filters are high quality. They are cheap > filters, but they are good enough if you change the oil often enough. > > -jim Every three thousand miles, regardless of age/condition of car...
From: nm5k on 23 Nov 2009 15:59
On Nov 23, 1:58 pm, jim <"sjedgingN0Sp"@m(a)mwt,net> wrote: > > If you notice the millions of new cars using Fram filters aren't the > ones having problems. It is always the guys with the 30 year old beaters > who tell of their the bad experience with the Fram filters. But I suspect not for the reason you think. A lot of the problem is the position of the filter. And lots of older cars had the filter mounted where it drained easily. It's not due to the condition of the engine. Remember, I had this problem with a brand new rebuilt engine that ran great, and it never did it again after dumping the Fram filter. My engine was not a beater and the oil pump was brand new. > > That is not to say Fram filters are high quality. They are cheap > filters, but they are good enough if you change the oil often enough. > > -jim They filter ok, but like one said, who cares if the valve doesn't work worth a hoot, and it's a proven fact that they don't. |