Is diesel grade oil necessary?

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Is diesel grade oil necessary?

#33

10-14-2009, 11:47 AM

Oldwolf

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Location: Raleigh, NC

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Quote:

Why don't you just use the 5w-40 year round?

Is there a benefit to using synthetics with a 4.5 - 5k OCI? Other than superior flow properties in extreme cold conditions I mean.

Quote:

yes 15W-40 could be used year round where your at. 15W is actually rated down to -15F

But will a diesel crank at -15F using 15w-40?

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