Hello Guest, you do not yet have the necessary rights to see the contents of our FAQ articles. Register in our forum, briefly introduce yourself and your Zetor in words and pictures and actively participate in discussions in the forum, then you will automatically receive access to the specialist articles in the FAQ.
you can use all of the above mentioned oils.... just hve in mind what climate you are in so that the oil you choose dont get to thick in cold wheater. good luck
15W-40 have been working fine. Thought it is a bit too sticky at cold. But i try to avoid cold starting below -20 and if it is needed, i keep pre-heater on long enought then. 0W-40 would be best, but it is difficult to find good diesel engine oil in that SAE class. And "car engine oils" are too expesive, when you need hundred litres / year