Remote bypass oil filtration

[dvldoc]

2 things for our common sense;

a.) good quality oil (multigrade or semi-syn) + good quality oil fliter (OEM, Bosch, Vic) = very good protection, long engine life (above 300,000 kms)

b.) good quality oil + an even better oil filter = an even better protection and longer engine life

*dvldoc = much better if you can post the micron filtering capacity of each oil filter (based on verifiable lab test) you can get your hands on so that we can see what can filter the best. It would benefit tsikoteers more.

It is worth noting that there are other things to consider in wear and tear of engines. How often do you crank the rig from a cold start. Meaning at least 2 hours being unused. Afterall, mostmanufacturers agree that it is during start-up that wear and tear is mostly occuring, not when oil is already circulating. This is part of the criteria, among others, to consider when categorizing the use of the car as normal or severe.

The anti drain back valve keeps you from dry starting, that's it's job. It's one of the most important parts of the filter. Without an anti-drainback valve, oil must flow through and refill the oil filter before proper oil pressure is reached, the anit-drainback valve allows optimum oil pressure to be reached much quicker by keeping the oil filter filled with oil.

Well not going to do every filter because I just don't have time. But here's a good clue, plain cellulose element filters have the lowest filtering ability and dirt holding capacity. Resin treated ones have much better cleaning and the microglass version much higher.

Different filter makers also use different standards of efficiency and can be a bit murky on what test they used, ie is it multipi pass or single pass and what microns. You can email any filter maker and they will give you the rating of a particular filter. That's what I do. You can also find a lot on the net.

All filters have to undergo SAE (Society of Automotive Engineers) tests to verify that they meet the vehicle manufacturer's specifications. There are two tests available for automobile engine oil filters. All filters must be tested with the J806 test, but the new J1858 is much more meaningful. Currently the J1858 test is optional. Really, it's a way for high-end filter manufacturers to show off their great filters.



The SAE J806 test uses a single-pass test, checking for contaminant holding capacity, size of contaminant particles trapped, and ability to maintain clean oil. As an amendment of the J806 test, the multi-pass test also looks for filter life in hours, contaminant capacity in grams, and efficiency based on weight. The efficiency of the filter is determined only by weight through gravimetric measurement of the filtered test liquid. Typical numbers for paper filter elements are 85% (single pass) and 80% (multi-pass).




The SAE J1858 test provides both particle counting and gravimetric measurement to measure filter capacity and efficiency. Actual counts of contaminant particles by size are obtained every 10 minutes, both upstream (before the filter) and downstream (after the filter), for evaluation. From this data filtration ratio and efficiency for each contaminant particle size can be determined as well as dust capacity and pressure loss as a function of time. Typical numbers for paper element filters are 40% at 10 microns, 60% at 20 microns, 93% at 30 microns, and 97% at 40 microns.



Cummins diesel has it's own standards and it's 96.6% * 20 microns for it's engines. 98.7% at 35 microns. They have there own standards. Cummins makes Fleetguard. Baldwin are very close to Fleetguard in their standard but are just short on there specification but still a dang good filter.



But there are many good over the counter filters, like Purolator, (Mobil1 & K&N) are the same filter, Bosch are a good filter, Wix are great and I keep them on hand.


But if you want specific specs on a filter just email the company, there are different filter medias between filters, some are strait cellulose, some treated cellulose, some cellulose synthetic mix, and some microglass and then multi layer microglass and cellulose. Like I said a lot of different kinds. But OEM filters tend to be the cheapest crap out there.