I think my Kubota states required minium API Certification is CJ4. T6, if I remember correctly has both CJ4 and Ck4 which is the improved new classification.
I can't say much about Amsoil. Always thought it was good oil and have not read any complaints about it. I do not see the API classification for Kubota on the links.
I stuck with Kubota for the first oil change. Then went to T6 -- which is almost impossible to find here. I may regret that if they don't start stocking it around here. I like full synthetic but don't like changing engine oil all the time. I also talked with my Kubota dealer before changing to T6.. They had no concerns using T6 instead of Kubota engine oil.
Oh, by the way, when considering engine oil for my tractor, I look for and depend on the API cert. for compatibility. I will not consider any engine oil (or many other products) that say - works with everything, or works with these brands.
And I still use only Kubota Filters.
I can't say much about Amsoil. Always thought it was good oil and have not read any complaints about it. I do not see the API classification for Kubota on the links.
I stuck with Kubota for the first oil change. Then went to T6 -- which is almost impossible to find here. I may regret that if they don't start stocking it around here. I like full synthetic but don't like changing engine oil all the time. I also talked with my Kubota dealer before changing to T6.. They had no concerns using T6 instead of Kubota engine oil.
Oh, by the way, when considering engine oil for my tractor, I look for and depend on the API cert. for compatibility. I will not consider any engine oil (or many other products) that say - works with everything, or works with these brands.
And I still use only Kubota Filters.
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