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

Gulf Coast Filters

About Us 
Customer Comments
Meet Some Of Our Customers
Frequently Asked Questions
Why do we change oil
How do I eliminate routine oil changes
Why Bypass Filters
Our Guarantee
Contact us
Filter Installation
GCF Element Change Instructions

Oil Analysis

GCF Oil Analysis program

The Oil Quality



1,000,000 Miles We Did It
Power Stroke Registry Review
North Carolina D.O.T
Turbo Diesel Registry Magazine

GCF Customers

Pepsi Cola Letter
Satisfied Users
Other Letters

Test Results

GCF vs. small competitor filter
Offshore Drilling
Scott Paper Co.

Gulf Coast Filters
High Quality Filters
for Over 30 Years!



1990 Peterbilt Rolls Over 1,000,000 Miles With Only 1 Unnecessary Oil Change

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425 Hp Series 60 Detroit

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Set of rod bearings at 1,000,000 mark
No Measurable Wear Found

Howard Hill, field engineer for Shell heavy-duty diesel engine lubricants, West hollow Research Center (left) and two members from the US Air Force (right) inspect a clean valve cover.  They were very surprised to see just how clean this engine was.

The benefits of using a GCF By-Pass filter are CLEAR

Clean head area after 
1,000,000 hard miles!
Clean block with no build up!

Just look how clean at 1,000,000 
with one oil drain!

Use A GCF By-Pass Oil Filter For Optimum Engine Life

Main bearings showed no measurable wear with 1,000,000 miles of hard pulling.  After this inspection, all of the original parts were reinstalled except for two cylinder kits.  These cylinder kits were selected at random and kept for trade show use.  This engine is still working hard for Pepsi Cola in Gulfport, MS

The old oil, with over 750,000 miles since an oil drain, was poured back into the engine and the truck went back to work.

See You At 1,500,000 !

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