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.

 

[dolcar1220]

I have a 2019 1500 limited...is it advisable to do an engine flush with like a Seafoam product or something similar? Ive read that engine flushing is good but ive also read its not a good thing to do...thoughts?

 

[HSKR R/T]

I have a 2019 1500 limited...is it advisable to do an engine flush with like a Seafoam product or something similar? Ive read that engine flushing is good but ive also read its not a good thing to do...thoughts?

Do NOT do that. As long as you have done regular oil changes with synthetic oil, it's not needed, and will chase excessive wear

 

[dolcar1220]

Do NOT do that. As long as you have done regular oil changes with synthetic oil, it's not needed, and will chase excessive wear

Thank you for your reply...what would you recommend if my engine has sludge? I changed out the crankshaft position sensor, cleaned out the throttle body and they bothe looked like they had quite a bit of sludge...

 

[HSKR R/T]

Thank you for your reply...what would you recommend if my engine has sludge? I changed out the crankshaft position sensor, cleaned out the throttle body and they bothe looked like they had quite a bit of sludge...

Throttle body doesn't have anything to do with your oil. Sounds like maybe you need a new PCV valve. Do you make a lot of short trips?

 

[RHO]

I've read 50/50 decision on this matter with the 5.7 hemis what's your guys thoughts is 5w30 safe to run

The Hemis with the MDS and VVT will toss up a code for incorrect viscosities' for the oil , my 06 did 6 quarts 5 20 and 1 of 5 30 by mistake and I got it in like 5 days ,

 

[silver billet]

The Hemis with the MDS and VVT will toss up a code for incorrect viscosities' for the oil , my 06 did 6 quarts 5 20 and 1 of 5 30 by mistake and I got it in like 5 days ,

Earlier hemis apparently did, but the 2019+ (and probably earlier) don't. I've run Mobil 1 0w-40 in my truck and no codes were set.

 

[mikeru82]

The Hemis with the MDS and VVT will toss up a code for incorrect viscosities' for the oil , my 06 did 6 quarts 5 20 and 1 of 5 30 by mistake and I got it in like 5 days ,

I've been running Red Line 5w-30 for two years and have never seen any codes for incorrect viscosity. I ran the same oil in the 2017 Rebel I used to own with no issues. That doesn't happen on 4th and 5th gens.

 

[stevj]

When my Ram had about 800 miles, just before a 7000-mile trip, I replaced the factory fill oil with some Pennzoil 5W-30, and have been using that or 5W-40 since.
I usually let the engine warm the oil to about 90°F before driving it. Currently at 88,000 miles and no codes ever from this.
4-cylinder mode works fine with these oils and, after the engine is fully warmed up, I will occasionally enable ECO mode for a few seconds to allow full oil pressure to the lifters.
See 7000 Mile Break-in Run

Steve