Can I safely use this Amsoil in my CK 30?

[ulflyer]

I have 4 quarts of 10-40 Amsoil (AMSOIL Premium Protection 1W-4 Synthetic Motor Oil) and one quart in 20-50. They are rated for gas and diesel use. Any reason not to mix this with the 15-40 Delo I normally use and change every 50 hrs?

I've never used any synthetic in the tractor which has about 400 hrs on it.

 

[VictorW]

I've used Rotella 5W-40 synthetic at the 50 hour oil change in my 2004 CK30hst. Around 800 hours now with no problems. The specs show it's diesel rated so it should be fine. If I remember correctly, engine oil is at every 100 hours but if you feel better at 50 hours, your engine should be very clean.