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That is a long time between oil changes. I would never go 25,000 miles or 40,000 KM between oil changes even with a newer diesel that runs a lot cleaner. I dont know about you guys but every old diesel that I have owned has black oil paste for oil after 5,000KM.


Thanks, DonM!

Actually it is a good topic to be discussed here...

I did another check, here http://www.worldsbestoil.ca/sae30-heavy-duty-diesel-oil-ACD.php# says Up to 25,000 miles or one year, whichever comes first.

I am going to go with http://www.worldsbestoil.ca/15w40-amsoil-motor-oil-for-diesel-engines.php#

or with this http://www.worldsbestoil.ca/15W40-Synthetic-Blend-Diesel-Oil.php#

Which is better?

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