7) Super Tech Outboard 2-Cycle TC-W3 Engine Oil Unconventional (Not ULSD compliant, may damage 2007 or newer systems) HFRR 474, 162 micron improvement 200:1 ratio 16.64 oz/tank $1.09/tank

it does show a slight improvement at 162 microns

walmart sells a small bottle for under $3, for each tank, I think that is a very small amount to spend

will it actually extend injector life? who knows ...

 

Oh dang, ADD strikes again. I got busy doing 5 other things and plum forgot. Thanks for that...reps.

Stewart

 

I used this in my Duramax religiously when diesel first changed over back in 2007, but that's a different fuel system and the fuel had been stripped and was taking out CP3 pumps. But now, they have worked that out and got the newer diesel back with lubricity additives put in at the refinery. It's been quite few years since nay reports of fuel pumps or injectors being worn out due to lack of fuel lubrication. But, as I have said before, our injectors are not lubricated by fuel, but driven by oil. Anyhoo, it's not the cost that's a big deal, but also remember, you have to remember to buy it, put it in every time at fill-up, remember to use the correct ration, etc, etc, etc....but hey, if you want to and it makes you feel better, knock yourself out. It's your truck and still a semi-free country. The correct ration that most guys used, including my self, was an ounce per gallon, so it took two of those small bottles per fill-up roughly. For me,it just became a giant PITA and I learned the 7.3 is a different fuel system. The only thing you MIGHT be helping is the $100 fuel pump. The math doesn't make sense. I've put 35k miles in the last 18 months on my truck. It's going strong on straight diesel. Hope this helps.

Ha, thanks Stew! That wasn't necessary, but much appreciated! I get the ADD believe me. Hope you are well my friend.

 

we really need a new study to be accurate, this test was done 11 years ago.

That being said, won't most gas stations have different diesel fuel additives? Therefore you don't really know what you are getting. I still think SOME additive would be beneficial to a certain extent.

 

Ok, so, beneficial for what exactly? Injectors? Nope. 100 buck fuel pump? Not really. You asked me to explain my theory, so explain yours. What it sounds like to me is that you really want to use SOMETHING and you want someone here to validate why it's ok to do so. Dude, it's your truck. Do what you want. Won't hurt anything.

 

I'll add this: Before PIS changed owners and Tim was there and was who I purchased my new 175/80 injectors, I asked his opinion on the matter of lubricity. He said that the new injectors are constructed with coated internals and USLD will be absolutely fine. His advice was to try running no additive and see. The difference would only be cetane and have no impact to the life or performance of the new injector due to lubricity. At the time I was using a top rated additive regularly but a few month's after running the new injectors, did not see any difference whatsoever. In the end, I don't add anything anymore.

 

SUMMARY;
OK; So we're basically talking about the 20 yr old technology of the 7.3 engine here...
NOT the 6.0 engine with stiction...
My 7.3 engine is EXACTLY the same as it was 18 yrs ago...
The ONLY thing that has changed is the fuel I put in it...
The STUDY BACK THEN [2007], indicated that it was beneficial to put in select fuel additives.
I have been following the recommendations of the studies
And I will continue to do so....
Disregard the advice, and save yourself some money if you choose...

 

I'm quite surprised that the WMO didn't help lubricity. I run a much higher ratio, around 40:1, which might make a difference. It seemed to make the engine quieter but I need to run through this tank to re-test. My phone showed a 3 DB difference, but there were environmental changes between the readings so it's not definite.

I run nearly 100% WMO in my IDI regularly. I haven't gotten the courage up to doing it in the PS, mostly because it lacks a second tank to switch to diesel. My understanding is that WMO has lower cetane but has more BTU/gallon. I don't notice any power difference between #2 and WMO in my IDI, no clue of MPG. There seems to be an accumulation of stuff somewhere in the engine from WMO at lower speeds, the longer I run it the nastier it gets and it takes longer to go away when switched to #2. WMO makes no noticeable difference when highway driving.

 

Nice, spent 40 mins and could not find it. I even searched the diesel place. /bow.

 

The study is old and was driven by the then "relatively new to market" ULSD and its impact on engines which were not designed for that fuel grade. ULSD has been around for quite some time now, and the number of our older vehicles will be continuing to die off as time goes on. I seriously doubt there will be a new study to define the effects of ULSD because the newer engines were designed with that in mind from the outset. Besides, given the HUGELY wide range of wear conditions for the 7.3's which are on the road, you'd never get experts to even agree to a study format.

 

I did run some diesel kleen, she seems a little more quiet