Paper Towel Oil filter

[Mad Max]

Smell My Lemmon'y Fresh...?

You may have us there. I like the way mine smells just fine. I don't want another Ram getting confused when the trucks are in the parking lot lot smelling each other's tailpipes like dogs when no one is looking.







MaX

 

[Bigsaint]

Yeah, I know what ya mean and I'd better be careful. Could park my truck only to come out later and find it surrounded by trucks with rainbow flag decals .



Scott W.

 

[jlccc]

back to something serious...

OK, back to something serious. A TDR member asked me to give an example of how bypass filtration should be used in conjunction with oil analysis. So, here is a simplified, fictional example:



Suppose Joe has a truck with 80k miles on it. Joe has religiously changed his oil every 5K miles and his air filter every 20K and he has always used the same brands of filters and oil. He has had an oil analysis done every other oil change and so he now has 8 previous oil analyses which are all consistent with each other. Let's assume that the Fe (iron) in his normal sample was 12ppm.



Now he installs a bypass filter and changes his oil and filters. He runs for 5K miles and draws an oil sample. He notices that the Fe (iron) in his analysis has dropped to 50% of its normal value or 6ppm. That's pretty good evidence that the bypass filter is removing the small particles from the oil (like silica) that cause engine wear.



Most likely the oil analysis after 5K miles will recommend that he run another X miles and sample again. So after X more miles, say 3K more (for a total of 8K since his last oil change), Joe does another oil analysis. This time the Fe comes in at 9ppm. Since the Fe number has gone up proportionally to the extra mileage all is well. Why? Because 8K/5K=1. 6 so we would expect that his oil analysis after 8K miles would indicate 1. 6 times more Fe in his oil than the analysis at 5K. Since 1. 6 x 6ppm =9. 6ppm it's obvious that Joe has run 8K miles with his bypass filter and yet he has less wear metals in his oil than he normally had at 5K (prior to the use of the bypass filter).



Let's say the second analysis (at 8K on the oil with the bypass filter installed) says that Joe should safely be able to run another 3K on his oil before the analysis company recommends changing it. So Joe runs another 3K miles and samples again (at 11K miles). At 11K miles Joe has now gone 2. 2 times his normal oil change interval. If all is well his oil analysis should indicate 2. 2 x 6ppm = 13. 2 Fe.



This time however the sample says that Fe is up to 15ppm. Since 15ppm/6ppm is 2. 5 and 2. 5 > 2. 2, it's beginning to look like the Fe (and hence the wear rate of the engine) is starting to change from a linear relationship to an exponential one. As long as the relationship is linear, everything is OK. Once it starts to change to exponential one of several things could be happening: There could be something wrong with the engine that should be corrected (e. g. leaking air filter, bad bearing) or else the oil has broken down to the point where it isn't protecting the engine as it should.



In this example Joe was able to increase his oil change interval from 5K to 11K miles at approximately the same contamination level of Fe. Remember that prior to his adding the bypass filter he had 12ppm of Fe at 5K miles. With the bypass filter he had 15ppm at 11K miles. Based on his 11K oil analysis Joe decides that from now on he will change his oil every 9500 miles and continue to sample every other oil change.

 

[WDaniels]

JPark,

As it seems as you are more knowledgeable about these filters and I am still learning. One of your previous posts talked about the efficency at the 2 micron level. I've read the advertisments of half a dozen and am not sure which one it was but think it was the oilguard that stated they filtered as small as 1/2 micron. My question is, how high was the count at 1/2 micron. Not worried to much about per pass but maybe a per hourly rating. Anyone can claim 1/2 micron if the count shows just one particle in the filter. Now if the count was in the high numbers at 1/2 micron that's important.

Any info is appreciated.

WD

 

[jlccc]

WDaniels:



The details were at the URL I posted previously.



http://www.oilguard.com/side_menu/bypass_filtration/independent_laboratory_test_page.htm

 

[Bigsaint]

Thanks JPark, that's good info on the analysis data.



Scott W.

 

[jlccc]

Re: back to something serious...

Originally posted by jpark



This time however the sample says that Fe is up to 15ppm. Since 15ppm/6ppm is 2. 5 and 2. 5 > 2. 2, it's beginning to look like the Fe (and hence the wear rate of the engine) is starting to change from a linear relationship to an exponential one. As long as the relationship is linear, everything is OK. Once it starts to change to exponential one of several things could be happening: There could be something wrong with the engine that should be corrected (e. g. leaking air filter, bad bearing) or else the oil has broken down to the point where it isn't protecting the engine as it should.

The attached image illustrates what's happening when the relationship changes from linear to exponential.

 

[drag racer]

Originally posted by Bigsaint

TTT... Deborah has come through. I received the Frantz filter from her today with a bill that reads ' payable upon statisfaction'. I'm hoping to get it installed this weekend, if all goes well and the rain ends. Just have to find a good place to mount the filter. Looks like the pass. side battery hold down will provide the best access for element changes. It's either there or the bracket for the alternator. I'll take some pics. after it's installed and start a new thread. I'm going to pull a sample before the filter goes in and send it out for analysis ( looks like there will be about 2,000 miles on the oil) and then resample in the same manner after another 1,000 miles.



Scott W.

BigSaint,



Just wondering how your install went... any comments, photos, etc. ??

 

[PZicha]

AMSOIL BMK12

I went this route / this setup has 2 bypass filters and the full flow in the stock position

 

[BillGotthelf]

Guys there is more than toilet paper/paper towel and cotton string filters.

 

[BillGotthelf]

There is a company called Puradyn that I have been using for over 10 years. There filter system uses cotton medium (not string) in a coffee can like container with a hole in bottom and top which fits into housing. There is a heater on the top which heats oil to boil off water, fuel and antifreeze that gets in the oil. My dump trucks have gone 575,000 miles without an oil change. I have the oil anayized every time we change filter element and change factory filter once a year. My dodge trucks have gone over 300,000-160,000 and 70,000 miles without changing the oil (amsoil synthetic). Considering the factory recommendation to change every 7500 miles it did not take long to pay for themselves. By the way before they were Puradyne they were TP Purifiner and they have been around since the 60's.