I have read that sticktion is not supposed to be an issue with our 7.3's but from what I have read about this issue they would be a good candidate for it. I keep seeing the Hotshot product advertised for the oil side of our HEUI injectors. Is this stuff any good/bad? I have read that you should not run any oil additives in these engines. I run Stanadyne in the fuel.
My truck runs very well and is pretty quiet for a 7.3 (inside a closed cab) without any fuel system mods.
I am a big believer in "If it ain't broke don't fix it" but was just wondering if this is really an issue.

 

I had idle issues for over a year after I installed my 200/80 sticks. I moved injectors from one cylinder to another, warrantied a few, tried different tuners, got live tuned and nothing worked. Finally, I added some Hot Hots to an oil change and it instantly cured my rough idle, but at the cost of occasional idle surging. Never did get an answer as to why my new injectors have stiction issues. I'll be draining this oil in the next few months and see how it runs without the Hot Shot.

 

Any HEUI system is susceptible to Stiction. Some more than others. 7.3L's are perhaps the least affected, and 6.0L's.

Stiction forms from heat and maintenance issues primarily. Long Idle periods, lack of scheduled oil changes and the use of quality oils and filters can cause Spool Valve and passageways to become sticky and not function as they would normally.

I have used both the Hotshot and the Archoil products in both my personal vehicle and customers vehicles with great success.

This is my experience. Yours may vary.

 

Unfortunately this is incorrect. Let me clarify....

6.0L injectors have what you can call a "design flaw" (for lack of a better word) that causes the coil assembly end cap to "stick" when a layer of cold oil is present. To best describe it in laymen's terms, put a layer of oil or other liquid on a dime and then put your finger on it and lift the dime off the table, it's stuck to your finger at least temporarily.

To address this issue, Ford updated the design in all reman Motorcraft injectors to include a notch or channel in the coil assembly end cap to alleviate this problem.

The 7.3L injector is of a completely different design and does not have this issue. They don't even have spool valves. Hence no stiction like the 6.0L. They do have their own set of issues like worn poppets and such.

There are quite a few oil additive companies that claim their products help solve stiction, and advertise it for both the 6.0L and the 7.3L, causing confusion among customers. Quite literally it's false advertising on the 7.3L, and what it's actually doing is changing the properties of the oil so that it doesn't hold as well to metal surfaces, which is how it solves the stiction issue on the 6.0L. But then you have to wonder if the oil is doing it's job elsewhere in the motor if you've changed the properties from how it's originally supposed to function.

Everyone has their own opinions about oil additive. Here's mine: I don't use them, never have and never will. I believe that the vast majority are snake oil and contain primarily mineral oil and a few additives already found in regular oil. Some of these additives bring the levels up much higher than manufacturer specifications and there are no independent studies or scientific proof that they actually are beneficial at those elevated levels. Every bit of so-called "proof" is simply marketing and testimonials, and additives simply change the properties of the oil from what it's designed to do and what the engine requires. Speaking of manufacturers, if Ford and other car makers actually thought these oil additives worked, they would be selling their own brands in their dealerships along side cetane boost and anti-gel. This would be worth millions to them. But ask yourselves why would Ford and others miss out on millions of dollars, why isn't there a Motorcraft oil additive? The answer is.... they doesn't work in the first place.

 

Thank You for calling me a Liar. Along with ASE and DIA. Your comments are noted. They don't have a Dam thing to do with what I posted. But, nonetheless, noted.

 

I wasn't trying to call you a liar and that was never my intent. It's a common misnomer that the 7.3L suffers from stiction issues as it seemed indicated in your post when I read it, and the OP was asking if it was. I was simply clarifying that it doesn't and gave reasons why, using your post as a jumping point. In addition, I gave my own personal opinion of oil additives. None of it was a personal attack, and didn't think I worded my response in any way that would indicate a personal attack. If you took it that way, I apologize.

 

Pocket, what's your opinion of using an additive in the fuel of a 7.3? (Aside from anti-gel). Same answer, or do some have benefits?

(New to diesels, I'm learning every day from this great forum!)

 

The only thing I've ever put in the tank is anti-gel and cetane boost.... and rarely do I ever put in cetane boost unless I think the fuel might be suspect of being lower quality.


Higher cetane can be beneficial to a better combustion and complete burn, but cetane additives are not a cure-all to bad fuel.


Be careful with anti-gel, as too much is worse than none at all.

 

Pocket & Thomas
Thank you both for your observations. At this point I will just stick with DELO 5w-40 in my engine as it has served well for 170K with 3K OCI. As for fuel I will run the Stanadyne until I run out and then debate over Optilube.

 

He didn't call you a liar. He corrected the bad information in your post. Much like I did when you posted an OAT ELC needs to be tested for SCA's. You just have a problem admitting when you're wrong.

Stewart

 

And, you're a Dick

 

Yet another thing you're wrong about.

 

Dude seriously.. Lol.. Name calling? Wow

 

 

This is one of those moments in time you get a second chance.....enough of the name calling, if you cannot take what a forum is (a discussion with two different sides) then think about just reading and not typing.