Looking through my 2016 x758's owner's manual for maintenance requirements. I see that in the service interval section it says to change the engine coolant every 2000 hours or 2 years (whichever comes first). So I figured it was time for me to change mine (tractor is 2.5 years old). Then I looked in the service procedure section for a how-to and see that it says:So, if Deere put Cool-Gard II in the engine when new I wouldn't have to change it until 6 years passes. But if they used something else then I need to change now.Coolant Drain Intervals
Drain and flush the cooling system and refill with fresh coolant at the indicated interval, which varies with the coolant used.
When Cool-Gard™ II or Cool-Gard™ II PG is used, the drain interval is 6 yr. or 6000 operating hours.
If a coolant other than Cool-Gard™ II or Cool-Gard™ II PG is used, reduce the drain interval to 2 yr. or 2000 operating hours.
Any idea what Deere uses at the factory? It's only 3 qts total in the system so I may just change it anyway, but I'd like to know my options...
* As a side note, the service section doesn't actually have a how-to. I'm going to assume it is fairly easy but if anyone has actual directions on how to drain the coolant I'd appreciate you sharing them.