Originally Posted By: C2H5OH
Originally Posted By: KevGuy
Same as an orange can, except it allows longer drain interval.
The Ultra has little in common with the Xtra Guard (Orange can)
The orange can is a higher efficiency than typical OEM and WIX filters but has a fairly low capacity because it is intended for 3,000 - 5,000 mile service intervals. To achieve that high efficiency at a competitive price it uses a blended media, nitrile drain valve, bypass valve integrated in the leaf spring and fiber end caps. The end caps job is to hold glue and seal the media. The 95%+ efficiency at 20 microns (ISO 4548-12) is testimony to the success of both the endcaps and bypass valve in preventing any leakage around the media. In independent testing this filter typically performs even better thsat 95% but Fram only claims 95%. The Ultra replaces the Extended Guard and is a long life filter using high grade silicone rubber and steel components with steel reinforced douple layer (and treated) media. this is a far trickier and more expensive construction but is required to achieve the huge capacity without sacrificing filtrattion efficiency (97-99%).
Haven't been on in a while eh Kevin?
You are the author of this piece, are you not?
http://www.diagnosticnews.com/tech/vehicle-lubrication-basics/
You appear to have done a number of pieces for "Diagnostic News". Haven't had much of a chance to do much but skim them at this point however.
Why do you post here so rarely?
Also, you appear to have a rather impressive background:
Quote:
Kevin has worked in the automotive industry since 1974 as a Technician, Supervisor, Manager, Engineer, Trainer, Technical Writer and Editor. He has pioneered real world diagnostic techniques for OEM and independent technicians.
