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Group: Forum Members
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Picked up some goodies today at NAPA and remember hearing about these heavy duty racing filters. I'm not racing anybody, but figure they must be high quality. They do say "Caution: Not intended for street use" on the box. Why is this a problem? What's good for the drag strip isn't always good for a grocery getter. They are sort of the standard WIX filter we all know and love, but on steroids.
Any reason us mere mortals might run into trouble with these, other than our wallet? They want $16 for them. Higher flow = Good. Though likely means less filtering? Is there a bypass valve deletion on this filter?
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Group: Forum Members
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Go to the Wix web site - you can contact them through there. I checked there, the site dies not have any more info on the "R" filters than you have wixfilters.com
54 Victoria 312; 48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ
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Group: Forum Members
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Yeah, looks like the warning isn't just California boilerplate or something like that, there's more to this filter than just burst pressure. I found this question had already been asked and answered by Wix and posted on another site:
"The race filters are less restrictive, and allow for more flow. However, they are meant to be used once and thrown away (and the oil replaced with clean, race oil). They should not be used on a vehicle that is driven regularly. They will not filter the finer particles that come from the wear and tear of driving a car for 3,000 miles before changing the oil and filter. Those fine particles in the oil can cause wear, damage, and restriction to oil flow throughout the engine, over time. We hope that helps clear things up for you. If you drive your car regularly, we would recommend using a filter with a smaller micron rating ..."
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Group: Administrators
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Besides the racing filter having a larger micron rating, the shell is a heavier material and has a higher burst rating. When breaking in a race engine on the dyno, it is done using a non-racing oil filter that has a smaller micron rating and thus filters out more of the smaller particles that's generated during break in.
  Lorena, Texas (South of Waco)
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Group: Forum Members
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I thought they were just heavy duty cans and better innards, didn't think too much about it. Looks like something more conventional would be my speed.
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Wix also has a 51515XP filter, the material is synthetic rather then cellulose. I wonder what is the advantage or disadvantage is?
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Group: Forum Members
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WIX XP Spin-On Lube Filter WIX XP Oil Filters provide robust engine protection when using synthetic motor oil for harsh driving conditions such as towing, extreme idle time, lower gear mountainous climbs, long periods at highway speeds. WIX XP filters are recommended for OEM oil and filter change intervals, typically 3,750 to 10,000 miles. This filter traps up to 100% more dirt and contaminants than WIX to resist premature plugging due to oil breakdown. Fully synthetic media withstands the harsh oil temperatures and conditions. A specifically formulated HNBR gasket provides an excellent seal during extreme cold engine starts and resist hardening under elevated oil temperatures. When applicable, WIX XP silicone antidrain back valve protects against dry starts past the traditional filter change interval. Oil Filter Laboratory Test Performance per ISO 454812 32 grams dirt (51515XP), 99% efficient at 35 microns (Based on 51515XP 51356XP, 57060XP)
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