[C320-list] Engine oil usage

[Karl Mielenhausen _/)]

Ed,

My Yanmar manual calls for a multi-viscosity oil, specifically 15W40.
Are you really using Chevron Delo 100 30W?

I suggest you try Chevron Delo 400 15W40, Shell Rotella 15W40, or the  
Mobil Delvac 1300 15W40 at your next oil change.

You may also want to invest in oil analysis. I happen to use this  
outfit....
http://www.blackstone-labs.com/
It's not too expensive and might give me an early indication of a problem.

I am at just about 1000 engine hours and see nothing like the oil burn you  
describe (yet).

Let us know how you make out.

Karl Mielenhausen
Hull 690

On Tue, 25 Aug 2009 02:06:36 -0400, Ed Edwards <edandsue.pt at gmail.com>  
wrote:

> I am curious about my engine oil consumpyion.  REBOUND is is hull # 347  
> with
> a Yanmar 3GM.  I have 1400 hours and it has been maintained  
> professionally.
> It runs great, I had the MAX-prop repitched with a max rpm of 3600 and I
> cruise at 2800 rpms.  My mechanic isn't concerned about the oil usage,  
> which
> has been consistant since I got the boat 4 years ago, 400 hours ago.  I  
> am
> going through a little more than 1 ounce per cruising (motoring) hour.   
> This
> seems a little excessive to me, more than anything its just a pain  
> topping
> of every day or two when we are cruising.  Most of the time it's not a  
> big
> issue when I'm motoring out into the bay and back for a race.
>
> I use Delo SAE 100 - 30.
>
> Does this consumption  rate sound normal.  I'm not too worried yet but  
> when
> my oil consumption exceeds my beer consumption, I'll be forced into  
> action.
>
> Ed Edwards,  REBOUND  #347



-- 
Karl Mielenhausen
Catalina 320 Hull 690
New Bern, NC