I dont know if is the correct place to post this question but here goes anyway.I own a dodge cummins diesel and a kubota diesel ZTR and a kubota RTV 900,my kubota RTV calls for 10w30 oil,I currently use schaffers 9000 5w-40 syn.in my dodge cummins diesel can I use this in my kubota also?I would like to use the factory recommended 10w30 weight oil but it is hard to find.Who makes the 10w30 oils that are diesel only compatable.Thanks.coobie