Call your dealer and ask them if you can mix the 2 or have to stay with one or the other. Some of the automotive kinds wreak havoc in the cooling system if you mix them, call before you give yourself grief. The dealer must know.

Just for poops and giggles I just went out and checked mine, a 2024 Camo Grizzly I bought last September and it has the lime green coolant in it.

Also found this:
But the dealer also said that Yamaha updated their coolant color/chemistry in 2016/17. The old coolant color in the 2015 models and some of the 2016's is blue. The new Yamacool is green. Obviously these are just dyes, but it signifies a change in chemistry.Mar 29, 2017
So, they may have sold you some old stuff and not supposed to be mixed.

 

I started running Yamaha units in 2016. Everyone of them had green from factory and blue if you buy Yamacool.
Ive always just had yamacool around out of convenience to buy and to carry in a small bottle in the cargo box. Never an issue.
This is a wide spread question across more than one forum. Some people use the Honda brand in their Yamaha.
The only thing that matters is that it’s Ethylene Glycol which both are.

 

blue

 

or water lol. lots of mud holes and water holes around just bring a cup lol. no but hes rite as long as it has the cooling properties it shouldn't matter same as all the diffeant oil's. oil is basically oil.

 

Has anyone looked in the owners manual for the correct coolant specification?
I know some heavy equipment water pump applications use the coolant as a lubricant so adding water will cause the water pump to fail almost immediately.....ask me how I know.

 

They push Yamalube coolant first for obvious reasons.
If that’s not available then an Ethylene Glycol coolant mixed 1:1 with distilled water.
If only water is available, distilled water, no salt water or hard waters for obvious reasons but just water can be added if needed in emergency. Of course the ratio needs to be corrected later.

 

I use all yellow Prestone in everything. Cars, trucks, Atv's, Skidsteer and mouse traps.

 

You don't have to use Yamaha products to keep your warranty. The Magnuson-Moss Warranty Act was a law that was passed in the 1970s and states that it’s not legal to require the use of a manufacturer part or service in order to maintain a warranty

I'd just look for any green automotive antifreeze that matches your color and says it is formulated for aluminum, which almost all are now like reogem posted.

 

We have designed new antifreeze formulas for two different companies. Don't put any weight into a warranty scam. You can run almost any coolant on the market. Green works great mixed 50/50. You can also use waterless coolants. Evans, ZipTy Racing, or straight EG, works great. Engine Ice is propylene glycol and is mixed with about 6.5% water. The disadvantage to this mixture is that PG is about 140 cSt when anhydrous (Thick as gear oil when the water boils off). This can cause cooling issues over time.

 

ya i just mixed blue green new old yamaha dealer gave me the wrong color. Now im hopeing its not damaged and i can remove it only ran 15 min