My problem with the Nissan ester oil as a do it yourself oil changer was that it cost over $14 per quart at the dealer when I paid the stinkin' 8.75% tax. I get Redline 5W-30 for just under $10 per qt. delivered right to my front door when purchased by the case. No comparison, especially when exactly what the Ester oil is (and isn't) is still being debated.
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