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1979 300 TD waggon
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6 Posts
Discussion Starter #1
I am going to change my oil and was woundering which weight of oil to use in my Diesel? Some people have said everything between 10-40 and others have recomended 15-40. What Do you guys use in yours? I am in North texas.
 

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1991 300 SE
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18,534 Posts
15w 40 is what I use in mine – use an API CH – 4 rated oil for diesel and a Hengst or Mann filter element. Put in six quarts first to avoid an over fill. Drive it around for a while and check the dipstick, add a quart if below the bottom notch.
 
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