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    Tire Aging

    I'm sure it is in here someplace but I couldn't find it. I've got some Michelin trailer tires that are ~6 years old and I'm wondering when to replace them. It's an aluminum horse trailer and I can't risk blowouts as it can damage the trailer as well as put my expensive horses at risk. We've...
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    2007.5 Dodge 6.7 Rear Differential Oil Analysis

    This is my Blackstone analysis after 12,486 miles under pretty heavy towing. Recommended OCI under heavy loading is 15k miles. Under light loading they don't give an OCI. The truck has 84k miles. The oil has been changed at least twice previously. The first numbers are mine and the second are...
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    MAG 1 15W40 in 2007.5 Cummins 6.7

    Truck Odometer: 80230 mi Miles on oil: 7857 no makeup oil added since last oil change. First sample ever... 70% towing 17000# trailer 30% around town - mostly stop and go From Blackstone Labs: Wear Metals: Iron; 43 ppm Chromium; 3 Al; 3 Copper; 2 Lead; 1 Contaminants: Silicon; 4 Sodium; 8...
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    MAG 1

    Does anyone know much about the MAG 1, 15W-40 oil?
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