I know that Amsoil states 25,000 miles or one year for the EaO series filters but what can I realistically expect from one? And why is there a time limit of one year-how does the filter know how old it is? I talking about a well-maintained vehicle, no excessive oil/water/coolant dilution using a full-synthetic oil. Could I safely do 10K OCIs but leave the filter on for 2 OCIs? I know in the grand scheme of things the filter is "cheap" (although these are about $15) but if the filter is not really being taxed at only 10K, is there any benefit to changing it?
Realistic Mileage Expectation Amsoil EaO series?
- Thread starter cfromc
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One year assures that you account for severe or more severe duty. If you're doing 25k a year ..you shouldn't be loading a filter per mile If you're doing 12k-15k a year you shouldn't be taxing the holding capacity of the filter. You're still a frequent flyer by most definitions ....and if you're doing 8k a year ..you should not be anywhere near the limits of the filter.
I'd say, in your case, it would matter how the two 10k OCIs fall in time.
I'd say, in your case, it would matter how the two 10k OCIs fall in time.
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I'd have no issue with every other OCI under those conditions. I would probably do a used oil analysis on one or the other OCI. It does add some expense though.
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Sounds like a plan. If your wallet is thick, get PC done at the same time. That will tell you how the filter did.
One of the reasons for the time limit is because the filter media degrades over time. The media is covered in the oil whether the engine is running or not. I do not think that any media submersed in oil would maintain its effeciency considering all the contaminates that build up in used engine oil.
I don't know about that. I've heard of folks leaving their full flow filer on for a couple of years doing extended oil drain intervals, in a bypass sytstem. I'm preparing my Buick for byapss and intend to change the full flow at least every 3-5 years.
Its true, the media is the same as the bypass filter EaO...which is a 50K filter. So the fullflow should easily go 20K. Good idea, EaO filter and oil...10K....change the oil...leave the filter on till the next OCI. I believe Vern has the plan.
There is absolutely no reason to doubt an EaO will go 25k miles in one year. I've seen generic filters go a long time and miles (year+, 15K miles), so a well designed filter with great media won't croak within those limitations. The filter probably could go more than one year, but along with what Gary says - it's just a conservative recommendation.
If the car is a sludge beast and one were just changing to a synthetic oil - or other cleaning factor - well, all bets are off.
If the car is a sludge beast and one were just changing to a synthetic oil - or other cleaning factor - well, all bets are off.
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Quote:
I don't know about that. I've heard of folks leaving their full flow filer on for a couple of years doing extended oil drain intervals, in a bypass sytstem. I'm preparing my Buick for byapss and intend to change the full flow at least every 3-5 years.
I agree ..to a point. I think the filter degradation issue is more along the lines of some short trip type who doesn't change their oil very often and the condition of the oil is also miserable. If your lube is healthy (which is should be with a bypass system or you're driving under suitable condition for extended drains) then there's no reason to think the filter is going to take a dive on you.
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