Thread: I'm an Amsoil dealer
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Old 09-27-2013, 04:29 PM   #20
Bacadiesel
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Join Date: Aug 2013
Location: Keller
Posts: 256
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If you want to send me a sample of your penn ultra when you do an oil change I can send it to black stone labs. I will also send a sample of Amsoil from my car and we can see how much difference
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