Mixing engine oil
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Tuned
Joined: Oct 2004
Posts: 442
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From: reno nevada
Mixing engine oil
Does it matter if you mix brands of oil in the 7.3? If your changing brands and you have 2 quarts left over, do you use them or avoid doing that. Silly question I know.
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Joined: May 2014
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From: Lake Hartwell, GA
Mixing oil brands is no problem at all. Mixing weights should be avoided, but would not cause any failure or catastrophic event if it took place.
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fred-texas
1999 - 2003 7.3L Power Stroke Diesel
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Jul 1, 2018 10:10 AM
