5w20 vs 5w30

[SD Rebel]

Also, he doesn't say higher viscosity increases wear. He said it increases temperature (which I never noticed in my truck). He did say, sometimes higher viscosity doesn't lead to less wear in the UOA's he saw, that's not the same as saying increases wear.

The UOA's I've done personally on mine, and seen on ramforum ... they all show the hemi responds very well to increased viscosity. He is talking in general terms, if you have a honda civic running in the city and never getting up to temps, higher viscosity isn't going to help in that case.

He mentions that earlier in the video about the heat, but he clearly summarizes at the end "Just because you increase the viscosity doesn't mean you get better engine protection". You are right, he didn't say higher wear, specifically he said "that an increase in viscosity doesn't equate to lower wear metals ".

Which in the end doesn't mean we should be jumping to a higher viscosity, this was your quote: "Bottom line, you should be running higher viscosity in the hemi's.", yet this was his quote: "Just because you increase the viscosity doesn't mean you get better engine protection" and don't go and start changing your viscosity without research was his point at the end.

You probably didn't watch the end of the video before posting it and using it as proof, don't worry, you could still be right in the end to go to a higher viscosity, but that's not what this video is saying.

I love sparing with you Silver, and I may join you in the dark side one day, but right now I'm going fishing on my Waverunner

 

[silver billet]

He mentions that earlier in the video about the heat, but he clearly summarizes at the end "Just because you increase the viscosity doesn't mean you get better engine protection". You are right, he didn't say higher wear, specifically he said "that an increase in viscosity doesn't equate to lower wear metals ".

Which in the end doesn't mean we should be jumping to a higher viscosity, this was your quote: "Bottom line, you should be running higher viscosity in the hemi's.", yet this was his quote: "Just because you increase the viscosity doesn't mean you get better engine protection" and don't go and start changing your viscosity without research was his point at the end.

You probably didn't watch the end of the video before posting it and using it as proof, don't worry, you could still be right in the end to go to a higher viscosity, but that's not what this video is saying.

I love sparing with you Silver, and I may join you in the dark side one day, but right now I'm going fishing on my Waverunner

Yes, you absolutely should be running higher viscosity in the hemis lol. I'm giving you like 10 different points in the map, all you have to do is connect the dots.

I did watch the entire video, I didn't miswrite what he said, you're the one who made the error here WRT "increased wear" instead of "increased temp"

He is talking in general terms. His audience doesn't necessarily have hemi's or work their engines hard. He see's UOA's from tiny puddle jumpers to 1 ton diesels so he has to make that disclaimer that you might not see a decrease in wear. HOWEVER: you will never see an INCREASE in wear (unless you're doing something silly like running 60 grade at -40, but lets pretend we're all doing normal here). Worse case scenario, nothing changes, but more likely (by far) you see less wear. That's because this is basic tribology; higher viscosity offers more protection for your bearings as temperature increases.

But I've seen the result of my 8 UOA's, and on ramforum, the hemi responds very well to increased viscosity even if you're not working it that hard.

Enjoy the wave runner. I do enjoy the discussion as well, and the only reason I keep replying to you is because you always say "you're open to changing your mind" and I'm just responding to that lol.