Originally Posted By: merconvvv
Long life meaning can go how many miles ?
I ran a single FL-1A on a "beater" 400M in a '78 F250 for 30,000 miles (3x OCI's every ~10k miles, 15W-40)
The reason I did that was because I had previously run another FL-1A for 10K on the same engine, and after cutting it open I found nothing of consequence. Just some small bits of carbon.
After 30,000 miles of use, I found NO failures inside - no media tears, no sludge, mo metal shavings... just lots & lots of fine bits of carbon. The pleats were wavy, but I just assumed they all did that.