Gulf Coast Filters Specializing in Bypass Oil filters, Fuel filters, Hydraulic filters and Custom filtering



Gulf Coast Filters

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Gulf Coast Bypass Oil Filter


Small Bypass Filters


What is the difference between the Gulf Coast Bypass Oil Filter and some of the smaller ones on the market?

  • Capacity – According to experts in the industry, diesel engines today can generate as much as one pound or more of contamination every 15,000 miles.  Using the Law of Matter you will need a filter with enough capacity to keep up with the contamination of the engine.  The Gulf Coast Bypass Oil Filter has been independently tested on a certified ISO Test Stand to remove over 2 pounds of ISO Certified Fine Test Dust and also tested to remove over 99% of the Below One - Micron Nanosphere particles in the test, compared with a small competitive bypass filter that clogged with less than 3 ounces of test dust (CLICK HERE TO SEE TEST SUMMARY) We already know that fuel soot particles average below one-micron so plain and simple, which would you rather rely on to protect your engine, a 1 Quart 3-Micron Filter or a 10 Quart 1-Micron Filter?  I think you know the answer if you are looking at running your engine well past one million miles before an overhaul.
  • Better Oil Samples – When running with the Gulf Coast Bypass Oil Filter you will have lower Wear and better TBN levels than with the smaller filters.  Lower wear means longer engine life; Higher TBN Levels mean that you will not harm your engine from acid.  We have found that some of our competitors have much higher parameters on their oil samples so they can claim long oil change intervals and try to compete with the larger Gulf Coast.  We have seen before and after oil samples using small filters and have found that the longer they  tried to run the oil the higher the wear and lower the TBN but yet the customer was never called and assumed that they had a good sample.  Gulf Coast recently talked to a customer that had tried a smaller competitive filter.  With 90,000 miles on the oil on a Pre-EGR Detroit the Iron Wear was over 130 PPM and the TBN was in the 3’s.  Gulf Coast Filters would have called their customer with a potential problem if the Iron Wear would have gone above 70 and we would have never allowed a customer to run their $30,000 engine on oil with a TBN Level of 3.  On another competitive filter user, their Lead Level had been over 100 on the previous 2 samples and no one called them.  They assumed everything was fine, not knowing that average Lead should only be 15 or lower on their particular engine.  Their TBN had also been consistently in the low 3’s.  After installing the Gulf Coast Bypass Oil Filter their Lead is now running single digits.  The TBN is now running in the 7’s and their Iron wear is FOUR TIMES LOWER.  Remember this, the original purpose of a Bypass Oil Filter was to add additional filtration to the engine to lower wear and increase engine life.  If you are not using a filter system that can accomplish this and your wear numbers are going up what have you accomplished?  (CLICK HERE) To see the difference in oil samples on the same engine using a small competitive filter and then after using the GulfCoast Bypass Oil Filter.
  • Oil Cooling – As you know today’s EGR Engines run really high oil temperatures, because of this you have a much lower window if you have an overheating problem.  The Gulf Coast Bypass Oil Filter is remote mounted, usually somewhere behind the cab or on the frame.  The farther you mount it from the engine the more of an oil cooling effect you have.  The oil is slow flowed back 10 feet or more and the time it takes for the oil to slowly pass through the Gulf Coast it is dissipating heat and returning cooler oil back to the engine.  The Gulf Coast Bypass Filter will also increase your overall oil capacity by 25% which will automatically lower the oil temperature.  Compare this to a small one quart filter mounted under the hood (where all the Heat is) and you will clearly see who is superior.

What about controlling Moisture?

  • The Gulf Coast Model E-1 Replacement elements are designed to remove the moisture and condensation from the oil without the need for any evaporator or electrical hook-up.  Think about this, if the oil passes through a filter and then needs to go through an evaporator that means the moisture is going through the filter.  It is much more practical to have a filter that can remove the moisture with the filter element without having to add any more “Bells & Whistles”.

Remember this, do your research and spend your hard earned money one time with the Best Bypass Oil Filter/Oil Analysis Program in the Country!!!

If you have any additional questions be sure and contact us at 800-398-8114 or email us at

Not Just Assembled, but Proudly Manufactured in the U.S.A.

GulfCoast Filters
P.O. Box 2787
Gulfport, MS39505


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Copyright © 2002-2005 Gulf Coast Filters, Inc.  All Rights Reserved.
Gulf Coast Filters
P.O. Box 2787
Gulfport, MS  39505