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Originally Posted by 30 Closed Cab PU
Thanks, that's a great idea.
I vaguely remember seeing it mentioned in the distant past, but had forgotten.
Will have to search the Barn and see what comes up. Then go online/google. Issue is I searched on oil subjects, but there is so much of it seems like it would be a weeks reading to get through it all.
Next year at oil change hopefully I will remember to save some of the used oil and send it in somewhere.
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If you have a Caterpillar dealer in your proximity, might be a good place to start.
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