coolant flush and change

[05yamahafz6]

I recently just got back from having a custom tune and throttle sync. after getting the bike back it is running hotter than before. the owner who tuned it said that it was probably due to my 3-4 year old coolant and that the bike was running now with the proper a/f ratio.

My question is he sold me motorex g30 coolant. It wasn't until i got home that i realized it is an oat technology coolant. I have heard bad things about this type of coolant in the past. Is it safe to use this in the fz6 or should i just stick with standard Yamacool 60/40 premixed.

 

[Raptorman53]

I can't say if the Motorex is bad for our bikes. When I did my coolant flush i filled up with distilled water and water wetter. If I decide to ride my bike in cooler weather I have some yamaha coolant ready to go in.


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[RJ2112]

I recently just got back from having a custom tune and throttle sync. after getting the bike back it is running hotter than before. the owner who tuned it said that it was probably due to my 3-4 year old coolant and that the bike was running now with the proper a/f ratio.

My question is he sold me motorex g30 coolant. It wasn't until i got home that i realized it is an oat technology coolant. I have heard bad things about this type of coolant in the past. Is it safe to use this in the fz6 or should i just stick with standard Yamacool 60/40 premixed.

If you are trying to determine why the bike is running hotter after a tune up, I would run fresh coolant, as approved by the mfg of the bike.... no reason to add another wrinkle to the question.

As I didn't realize someone had come up with yet another formulation for coolant -- thanks for giving me something else to worry about. :Flash:

I've just been out to the Motorex site, and haven't found anything for a MSDS sheet on the stuff as of yet. OAT technology isn't explained on their site. The coolant is ethylene glycol based.... that's the same stuff as antifreeze has been for decades. -the stuff that animals will drink and die from. Their site claims there are no silicates in the coolant, which would make it less abrasive. Still should be too slippery for use on a race track.

 

[TownsendsFJR1300]

I use Prestone pre-mixed 50-50 in the FZ (and my old FJR and KLR). Can't screw up the mixture, lubricates and protects too...

No problems, the digital temps did come down a little..

 

[Ben_H]

I would just stick to regular coolant. I am a automotive tech and I just you Honda coolant it comes premixed 50/50 it is the same as Yamaha coolant. The problem with coolant is when it is mixed with tap water there are to many minerals in the water.

 

[05yamahafz6]

Thanks everyone for the quick replies. I think i'm just going to play it safe and use either a yamaha or other standard silicate free coolant. besides that i might throw in a splash of maxima cool-aid, which i think is similar to engine ice or water wetter.

Below is a general definition i found online of what oat coolants are:

OAT stands for Organic Acid Technology. Some organic acids can be used as corrosion inhibitors instead of the traditional inorganic inhibitors, like nitrites and silicates. OAT antifreeze should only be used in newer vehicles designed for its use. Organic acids can actually attack seals and solder used in some vehicles. possible incompatibility with other antifreeze types and older cooling systems.