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gone-ot · 09-12-2009, 07:23 PM

...in addition to the "life" of the oil itself, there's also the question of the "lives" of the various additives...when they're 'used up' that's when the oil is really no longer useful.

09-12-2009, 07:23 PM	#6 (permalink)
gone-ot ...beats walking... Join Date: Jul 2009 Location: . Posts: 6,190 Thanks: 179 Thanked 1,525 Times in 1,126 Posts	...in addition to the "life" of the oil itself, there's also the question of the "lives" of the various additives...when they're 'used up' that's when the oil is really no longer useful. Last edited by gone-ot; 09-13-2009 at 08:50 PM..