In response to the comments about the lubrication test, I agree the test isn’t EXACTLY how our pumps obtain lubrication. However I still think the test holds quite a bit of ground. How can a substance that lubricates less than straight fuel add to the lubrication properties when added to the tank? I’ve never been in a CP3 before so I had to look it up. Just doing a quick search I found this quote from an old article,
“The lubrication flow is simply a tiny orifice that lets a small amount of fresh fuel enter the bearing housing of the CP3. The CP3 uses this fuel to cool the bearings and lubricate the internal moving components. This bearing housing is ported directly to the fuel return fitting so this fuel which is now hot from the bearings easily moves back to the tank to be cooled.”
So, I could see how an additive that doesn’t add much lubrication by itself could still aid in cooling the bearing, but then are you just throwing money away? I’d much rather put in an additive that shows less resistance and wear in a quick test of metal on metal than one that does worse than straight fuel. After all, bearings are metal on metal usually. I don’t believe that additives give any performance boost at all. I use them to keep my fuel system healthier than they’d be without since new diesel doesn’t lubricate and cool as well, and some guys in colder climates to combat gelling. Yeah we aren’t using it as a replacement. That’s why it’s called an additive. If you don’t care about anything but performance or gelling I could see how his test would be bogus.
Not calling you out Brad, just trying to understand why you think that test isn’t relevant to these engines at all. Maybe we aren’t trying to lubricate the same thing tho (nohomo :roflmao