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06-15-2017, 05:56 AM
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#7 |
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Registered User
Join Date: Oct 2013
Location: Maine
Posts: 2,400
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Re: 454 question: Should I be worried about the reliability of my motor?
A lot of truck fleets run 15w40 in everything. It's truck oil. Every trucking company I have ever been around always ran 15w40. I wouldn't worry about it. When people try to run 15w40 in modern engines they could run into problems because the engine was not designed for heavy oil; like Caddy Northstars.
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