AX5 will not become watery like Tru4 premium under high temps. I have seen this watery state once while draining it out from my bike at a local garage after some riding. The Mech instantly pointed out the fact (this particular oil was used for less than 1500km at the time it was changed).
Thing is, one need to stick with Tru4 or whatever oil the SVC provides to keep warranty. But some SVC's do accept and use the oil of our choice. But for this we have to be there on service day or some how make sure that they actaully use our oil (Shell Advance AX5 till 5000kms, then AX7).
I'am not saying Tru4 is not good, it is a quality product and is more than sufficient for daily commutes and is sort of OK for touring too. But, there are much better oils out there.


you are right on this one! 


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