I have an 82 240D. A while back when I first bought the car, I bought some non detergent motor oil. I've been adding a couple of ounces at each fill up of diesel because of the lower sulfer found in todays fuel...I want the injection pump to have a long life.

I've been looking through the archives and have noticed that many of you have been using Redline Diesel Fuel Catalyst. Well I decided to buy some and I've starting using that and will continue to do so.

My question is, would I be doing harm to the engine or the injection pump by using an ounce Redline DFC and an ounce of the non-detergent motor oil combined? The reason I'm asking is because I'd like to use up all the non-detergent motor oil that I bought as a fuel additive.