When should I replace AIS filter element?
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When should I replace AIS filter element?
Installed the AIS Severe Duty Kit on my 99 F250 CC 4X4 7.3 diesel in Aug 03, about 20,000 miles ago. When mileage dropped from 14.5 avg to 14.3 avg recently, I tapped the filter gently on the drive and a fair supply of sandy dirt dropped out. 95% of miles are pavement, 4x4 seldom used and almost never in harsh conditions.
How does on know when an element change is warrented?
How does on know when an element change is warrented?
