Suggestions for Lombardini 6LD 435

[JFR]

Hey Fellas,

I have a Lombardini 6LD 435. Its a single cylinder diesel, powering a generator head. Its an older unit(late 90's) but just 100 hours.

I want to pick a crankcase oil that will provide the best protection and maybe add some longenvity. The motor gets about 2-4 hours runtime per week in the winter months(Nov. - May). 1 hour a month other times.

The manual suggests a straight weight oil depending on temp conditions, but I was thinking of going to a quality 15-40W, like Delo or Rotella, to provide more protections in particular on startup. Then I got to thinking about synthetics. What's the concensus regarding the syns, in particular Royal Purple for THIS application?

Thanks in advance for the insight.

Best Regards,

JeffersonXX

 

[Brons2]

Kohler now owns Lombardini, and they say 15w40 is ok for 350, 400, 440 CC diesel aircooled single cylinder engines...see oil chart page 39.

http://www.kohlerengines.com/onlinecatalog/pdf/kd350_kd400_kd440_om.pdf

 

[JFR]

Thanks B2, I was aware of the Kohler/Lomb relationship. Not knowing much about synthetics, I am curious to know this forum's opinions on using them for this application. I did find the link you posted, very helpful download. Thanks again,

JeffersonXX