IS Waste motor oil ok for Cat D4H Dozer 1991

Hi does anyone or do you now of any that uses WMO in his Cat Dozer. I am planing to get used motoroil from a local oil service station. Filter it with a centerfuge that will clean down to 1/2 micron. Blend it 20% diesel / 80% WMO. Since I am in Iceland I will get a heater in the fuel tank, a heated hose from the tank to the engine and a heater around the diesel filters.

Do you think this will work ?

Kind Regards

Thor

IMHO I think it'll be hard to start on cold mornings/days but should run fine once it warms up a little. I could be very wrong, and I'm really interested in what others have to say about this. And I'm sure you'll get lots of replys.

Sæll Þor,

This will work. You can play around with the diesel/wmo blend to get where the engine is happy.

Kveðja- Jói