Quote:
Originally Posted by EA37TS
And I don’t extend change intervals because some oil company says their synthetics better than everything else. Change intervals don’t include a disclaimer that is based on oil type.
Onan and Cummins states there is no benefit to using synthetic.
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BTW the HEMI in my WK2 will malfunction by using synthetic. In the case synthetic causes harm rather than good. Search the web for more info.
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