Amsoil SS 5w-20, 75,000 miles, '11 Ford Expedition

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Thanks for the update, Crusher!

How many total quarts added since you started this 75,000 mile journey?
 
Phenomenal!!

Between 62K and 75K, both times there was a filter change and 2 qts top up oil added; yet at 75K the TBN has improved. Do you consider this evidence of the Puradyn's ability to replenish the additives?
 
Linctex
That's an excellent question.
The filters I run are pretty big, approx 1.5-2 quarts. The full flow is an Amsoil Eao-26, and the Bypass is an Amsoil BP-100.
3 full flow changes, and 1 Bypass change for approx 6-8 quarts plus 5 quarts of top off for a total of 13 quarts.
 
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