Calling LD, re: an oil question.

[achris]

Hi Ludedude,<br /><br />Not sure this is the right forum for this question. Sure JB'll move it if it ain't.<br /><br />I have a question about oil. Surprise, surprise, and I can't think of anyone better to ask.<br /><br />I have a 4.3L Mercruiser and a 6.5L V8 GM diesel (non-turbo, at the moment) and I'm wondering if I can use the same oil for both engines. I am aware of the viscosity issues. I use 15W40 in the Merc and the same in the diesel. The thing I'm more interested in is the ash content. Will a lack of ash (in a 'petrol' oil) cause a problem in the diesel engine, and would the ash (in the 'diesel' oil) cause a problem in the petrol engine? If it won't cause problems, which would be better, 'petrol' oil in the diesel engine or 'diesel' oil in the petrol engine?<br /><br />Also, why is there ash in oil for a diesel engine and not for a petrol?<br /><br />Thanks LD.<br /><br />Chris.................

 

[JB]

Re: Calling LD, re: an oil question.

Let's try Non-boating Tech, Chris.<br /><br />Good luck.