The thing thats missing here is a restriction monitor. With the hydraulics I work with, we have restriction indicators. This allows us to catch some of the smallest contaminates that would otherwise have gone thru the system. And we can do so up to a monitored and alarmed setting.
Thing is, on an engine as you add restriction, the oil backs up, causing the pressure to open the relief valve. Sooo, has anyone actually proved that yer getting cleaner oil with a higher restriction factor? And yer not just dumping it at the relief valve?
I'm still trying to find an answer I trust on that.
When the filters relief opens, you bypass part of the flow.
You are still filtering some.
At lower RPMS, and thus pressure, you filter all.
Personally, I'm willing to live with that. I look at it as equivalent to a kidney loop in the plant. We mantain some systems very clean but only filter a small proportion at any one time.
I am, of course, will to have my mind changed. But not by sales literature.
One thing I will stand firm on, smaller is better. For now, I'm sticking with HDs 5 micron nominal.
If I find something better, I'll use it. But it has to have the backup to convince me.
BluesFan, I don't have a beta rating. Don't know where the insinuation came from to change the oil and not the filter? (from another string) The filter should always be changed when the oil is changed. With Amsoil, the filter is designed for extended drain intervals to match the extended drain interval of the oil. You still change both at the same time. Tests also show that although this filter actually filters more dirt at the smaller micron rating, it still provided better oil flow as well than other filters, the oil is not restricted. HD makes a great oil filter, but as I said in other threads, Amsoil oil filter is better and cheaper.
I think the misunderstanding came with the phrase "extended service interval", some thought it meant running the filter for 2 oil changes. I understood extended filter AND oil intervals.
Hi Stretch, not sure who Willie is? And I don't have any relations, that I know of anyway, named willie. No I don't actually "work" for Amsoil, although I am an Independent dealer. Yeah, I don't like salesman, and I don't really feel like one, but I ran across this product, tried it, believe in it now, and every customer I've had, so far, has been more than pleased. I came across another product some years ago that I'd be proud to be associated with and that I use also. Bose. But alas, I'm a computer IT tech and that pays more, at least until I retire in 4 months...again. (I'm retired Air Force too). So Amsoil is part time, it's fun, customers love me and the product, I work when I want, nobody on my back. Win win situation. What do willie and his henchmen do? I don't want my fingers broke!
well, he didn't say Willie G, and the word "henchmen" kinda threw me
too. Nope, don't work for them either. Been workin' for the U.S. gumment
for 37 years, getting ready to retire again for good.
You can split hairs if you want but Amsoil and their filters are no better than any other product out there. For a filter to trap finer particles it must have smaller pathways for the oil to travel through, which in turn effectively causes a restriction. To trap finer particles and still move enough oil to properly lubricate - the size of the filter has to be increased. I've had equipment using 3 to 10 micron filters that had to be stacked 2 or 3 at a time in order to move sufficient quantities of oil. Those filters were 30 in. long and much wider than a HD filter and they (and the oil) had to be changed often.
Changing the oil and filters is THE single most important preventative maintenance tool you can use. I could never leave a dirty filter on my $20K bike - it just doesn't make any sense. It would make more sense to change the filter and leave the oil but who would do that? Sounds like Amsoil is trying to mitigate the extra cost of their filters. Sometimes companies try to make BS smell just like perfume, but it's still BS.
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