This video goes into why lifter and cam failure was soo high on 2009-2014 model Ram 1500 5.7 hemis and 6.1 and 6.4 Engines in SRTs. This is good stuff you do...
youtu.be
Thoughts?
Russel Crowe is right on the money. You can tell that, unlike Uncle Tony, this guy builds Hemis. It's pretty much the same thing that my engine builder friend told me and that I talked about here, and when I did it, certain people "yelled" at me. It's a materials issue. I've been inside enough diesel engines that had a very rough life, and one thing they never had was cam failures. Those cams will run for several million miles without any issues because they are properly built. The only thing that both the guy in the video and my engine build friend failed to mention was that all lifters (MDS and non-MDS) also get extra oil when MDS is activated. However, if you watch Reignited on YouTube, he mentions that.
Thanks for posting this.
If you want some excellent lifters, I believe this is it:
https://johnsonlifters.com/Products/HydraulicRollerLifters.aspx
Feel free to research how esters adhere to metallic surfaces. I reported what I read about polyol ester physical properties from an academic website way up in this thread. What is "bone dry"? Was surface inspected by spectrometer for lubricant residual?
If you recall, this has been discussed to death, and I wasn't looking to spark a new debate or had any questions about how Red Line Oil works, as most, if not all, of it, is just speculation based on Red Line's marketing materials. Yes, it bothers me that they have gone even more secretive, and now their MSDS looks more cryptic than what Castrol and others put out. I know that MSDS documents are meant to be misleading but familiar: "90% synthetic," that's all they say now. We don't know anything about it other than "Ester Formula" on the bottle. I get that it's a trade secret, so I don't even want to speculate. As an engineer, you should at the very least be a little bit concerned about the lack of engine sequence testing.
In one of my conversations with Pat Burrow from Lubegard about mixing various Lubegard additives with Red Line, he said:
The Redline products are always interesting but generally tend to meet their own requirements and don't go the formal certification process the others go through. Not necessarily a good or bad thing, just something to consider.
And before you point the finger at AMSOIL, keep in mind that AMSOIL works closely with Lubrizol and Afton Chemicals, amongst others, to be as compliant as possible, and many of their oils carry official OEM approvals.
Now, do I think Red Line makes terrible products? No, I don't. It's more like hit or miss, and that's why I like to share my experience with it and get input from others. For example, their Diesel engine oil is crap, handles soot very poorly. I wouldn't think that their gasoline engine oils do any better with soot, so I doubt that Red Line is an excellent choice for GDI engines. LSPI isn't a concern, though, and I'm sure Red Line does fine here.
Red Line ester oil out of the container is a darker, reddish color. It appears and smells different than API Group III and IV oils. It is also slightly denser than those oils. The ester base oil is a chemical reaction of an acid and an alcohol. Has nothing at all to do with reconstructed crude oil hydrocarbons.
I was amazed at Red Line's properties when I first got it. I was even more surprised at cleaning the oxidation off the RP 20-820 oil filter when priming it and got some extra oil at the top. As I was whipping it off, the oxidation came off with the oil, and the rag turned dark, almost black. It's exciting stuff.
You can google all this stuff.
While I appreciate your input, expertise, and knowledge, you are not obliged to respond to my comments. I would be saddened if you didn't. However, I would try to find answers somewhere else. Thank you for your comments though, I appreciate it.
FCA changed vendors and design of the lifters in model year 2017 to attempt to get reliability up. Never saw any data from techs if failure rates went down. Notably, nothing was done to improve lubrication to the lifter rollers that I can find.
Chrysler's Gen III Hemi engine has been a force to be reckoned with. The 5.7L engine continues to this day and has been accompanied by larger 6.1L, 6.2L, and 6.4L cousins. In use as everything from a truck motor to the astonishing Hellephant crate engine, Mopar's modern V8 line has not only...
www.holley.com
"The BGE engines have also benefited from a redesign of the lifters that is now standard on all production Gen III Hemis. The lifter axles and bearing needles have been subjected to carbon-nitriding and also have been cryo-stabilized. All of this contributes to a stronger lifter and is completely interchangeable with all Gen III Hemi variants. These are the lifters that should be included with any performance camshaft upgrade. We found part number 05038784AD under Mopar lifters in the Summit Racing catalog that offers four lifters and a dedicated holder, which would require four of these PN’s for a complete set."
All answers in front of you guys, contained in this article posted by
@HEMIMANN -
https://www.holley.com/blog/post/everything_you_wanted_to_know_about_gen_iii_hemi_engines/
The pump pushes oil into the main galley that runs down the middle of the block. This latest Hemi oils the engine in a similar fashion to other V8 engines in the first part of the circuit. The main oil galley that is fed oil from the filter runs front-to-back with passages feeding downward to the main bearings (and rods) and upward to the cam bearings.
A third passage off the main galley is connected directly to the cylinder heads through the block. Oil is routed through the rocker shafts to lube the shaft bushings, the rocker arms, top of the valves, and pushrod tips. This circuit also feeds oil down through the pushrods down to the hydraulic roller tappets. This makes for a rather circuitous path that places oil into the lifter body as the farthest point from the origin at the oil pump.
Look at what I highlighted in orange. So much for "splash lubrication." This is good info, thanks
@HEMIMANN. I hope it won't be rejected in favor of "Uncle's Tony Explanation" and other nonsense.