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Old 04-20-2013, 05:50 AM   #15
FF
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Detroit Diesel has a full report on using old lube oil in their antique (1936 design) ., written in the 80's.

Basically it ruins the cylinders and is considered a no no.

"Saving" $4.00 by dumping a gallon of filthy oil at best will require replacement of the fuel filter elements.
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