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:
Best source of 15W-40 for my Cummins QSB
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07-25-2021, 12:20 PM
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HeadedToTexas
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Sandusky Bay
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Escape
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Mariner 37
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Jul 2016
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My QSB 380 is a 2007 and long out of warranty; it’s just
my
first oil change.
There is a big price difference between Rotella T4 and T6. What’s the difference in the product?
HeadedToTexas
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