My First UOA. I always use conventional because I change oil every 2000 miles or so, give or take 500 miles. Pretty much 3 times a year. I was curious on how the viscosity would hold up and the main reason for the test.
Normally I use 15/40 HDEO's like Delo, Mobile, Valvoline, Rotella and you can tell after 2000 miles shifting will start to get a little notchy due to the drop in viscosity.
However with the Valvoline 4Stroke motorcycle oil in the 20/50, I havent noticed that, even after 2,600 miles so I was assuming it held up pretty good. It seems that Blackstone confirmed that.
Newer Vstar 1300 owner manual says its ok to use 20/50 and I thought that was perfect for my hot climate and the fact that the shared gear case chews up the viscosity pretty well, not only in conventional oil but some of the cheaper synthetics and some of the 5/40 synthetics.
I will use the 15/40 HDEO over the winter.
I also thought (hoped) this oil would perform better then some of those 5/40 synthetics, simply because its a 20/50 oil. In fact I think the conventional Valvoline 20/50 Motorcycle oil held viscosity better then some oils like Rotella T 5/40 based on recent posts on other bikes even on this page. Maybe better said, the conventional Valvoline MC oil didnt drop into the mid to low 30s in about the same mileage as the 5/40 synthetics.
I expected the viscosity to drop down into the high 30s and would have been very happy about that but from what I can tell by this Blackstone report, it looks like it didnt drop much below a 45. Is that a safe assumption? Any other comments? Thanks ...
Blackstone Lab Valvoline 20/50 Motorcycle Oil
Normally I use 15/40 HDEO's like Delo, Mobile, Valvoline, Rotella and you can tell after 2000 miles shifting will start to get a little notchy due to the drop in viscosity.
However with the Valvoline 4Stroke motorcycle oil in the 20/50, I havent noticed that, even after 2,600 miles so I was assuming it held up pretty good. It seems that Blackstone confirmed that.
Newer Vstar 1300 owner manual says its ok to use 20/50 and I thought that was perfect for my hot climate and the fact that the shared gear case chews up the viscosity pretty well, not only in conventional oil but some of the cheaper synthetics and some of the 5/40 synthetics.
I will use the 15/40 HDEO over the winter.
I also thought (hoped) this oil would perform better then some of those 5/40 synthetics, simply because its a 20/50 oil. In fact I think the conventional Valvoline 20/50 Motorcycle oil held viscosity better then some oils like Rotella T 5/40 based on recent posts on other bikes even on this page. Maybe better said, the conventional Valvoline MC oil didnt drop into the mid to low 30s in about the same mileage as the 5/40 synthetics.
I expected the viscosity to drop down into the high 30s and would have been very happy about that but from what I can tell by this Blackstone report, it looks like it didnt drop much below a 45. Is that a safe assumption? Any other comments? Thanks ...
Blackstone Lab Valvoline 20/50 Motorcycle Oil
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