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I see most of them as qimmicks, but ULSD removed lubrication...so I feel lubrication needs to be supplemented back in. I've used the Ford fuel lube/cetane booster from the beginning at every fill up...zero injector issues at 160k miles now. The Ford PM22 additive is half the cost of Stanadyne (which is also good).
I've used Diesel Kleen since I bought my truck new in 2005. I now have 150K on the clock and have never had injector issues. I've noticed that the injectors will get a bit clacky if I don't happen to have any DK to add to the fuel so I personally think the value of lubricity is something that is effective and not a gimmick. It's been working for me so I will keep using it.
It's the same answer you always get in threads like this: "I use it and haven't had problems". Which is what you'd expect, there shouldn't be an issue caused by an additive, and there's no way to definitively affirm that an additive did anything positive. I use them, for what I think are legitimate concerns of increasing lubricity lost from the ULSD change over, and winter anti-gel additives because of biodeisel water content and gelling concerns.
Oil additives like Rev-X and HSS are different, you can see improvement running balance tests because they can remove deposits on the spool valves. There's not really an equivalent of that on the fuel side, the nozzles shouldn't show deposits with or without additives.
Oil additives like Rev-X and HSS are different, you can see improvement running balance tests because they can remove deposits on the spool valves. There's not really an equivalent of that on the fuel side, the nozzles shouldn't show deposits with or without additives.
Interesting, so do you use one of these oil additives at every oil change or?... I've never used oil additives, just always made sure to change every 5K (whether severe duty or not) and began using synthetic fairly early on in my truck's life as well thinking that was enough. Your post seems to suggest that an oil additive is good preventive maintenance where I had always assumed that it was used as a remedial measure when a problem might arrive. Have I had it wrong all this time?
They only apply with stiction problems. The distinction is that fuel additives make such minuscule impacts that you can't isolate changes definitively related to using them, whereas oil additives will show quantifiable improvements on the o-scope if you have a problem. No problem, no improvement.