No where did I say Amsoil wasn't a product that didn't function as advertised. It was suggested above that I just agree with your false bogus claims and move on and I tried to do so, but it's hard when you are twisting my words so I apologize.Funny thing about all this to me is the ones that yell the most about how a certain product can't, doesn't or wouldn't work are the ones that have never tried it.
Hey, I didn't believe it either until I tried it for myself. Simply put, Amsoil does what it says it will do and more.
It sure would be nice if people would just think about what is being shared, process it and either apply the knowledge or dismiss it instead of argue over a product they've never used. Myself, I'm always interested in learning something new. Especially if it will benefit me or my equipment.
You said your engine can run cooler and achieve better fuel efficiency.. others agreed and it's all just plain fake news. I realize oil cools and thinner oils create less friction, but to claim you can see an operating temperature difference in something that is liquid cooled by an analog gauge just doesn't set well with me. I have no idea what thermostats open at on various Kubota tractors, but most cars open at around 195*F. No oil is going to help regulate that. A healthy cooling system on the other hand will.
You are not going to see a measurable increase fuel efficiency by using a different oil. This is cold hard fact. Unfortunately, we have CAFE and EPA to help us choose our thinner oils.
Since being open to new things was brought up, I genuinely suggest you do some reading on bobistheoilguy.com. Lots of good knowledgeable guys on that site with all sorts of automotive and machinery background. You will find that Amsoil isn't a bad oil at all (there's even an Amsoil rep on the site), but you'll also find that there's other more than capable alternatives out there as well.
Take care,