Kubota recommends coolant that does not contain Nitrates, Nitrites, Silicants or Borates. As this coolant contains Nitrites and Silicates, it is not recommended.
We recommend 'Rotella ELC NF' coolant in a 50/50 concentration for all Beta/Kubota products.
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Best regards,
Farron
Technical Sales and Service for Beta Marine, US Ltd. Minnesott Beach, NC PH: 252-249-2473 farron@betamarineusa.com