Quote Originally Posted by dvldoc View Post
Visual inspection on diesel oil is not really a reliable means to know if the oil is in need of a change, But if it pours like water it's a sure bet the viscosity has broken down and it needs to be changed. Almost any Diesel oil has a TBN of around 10 and can make it 8000klm to 10000klm easily. More if you have a good filter.
That's my experience now doc... after 1200km of using trekker rev-x engine oil WITH STP Engine Oil Treatment, my car smoke badly, like insanely black... when i change my oil early this morning, the oil is so watery ... what's wrong with that doc? is it the additive?

oh btw, i currently used delo gold ultra and vic filter (sorry...)