Siorus
New member
Power Service's Diesel Kleen has done very well for me in everything but my tractor. I just did a cross-country move in an overloaded 26ft International box truck with a CEL and a severe misfire. Running Diesel Kleen at about 2x the recommended dosage was the difference between 25-35mph up hills on I40 (without it) and 45-55 (with it). On a healthy engine, the difference will be much less pronounced, but as a cetane booster (and thus, power adder) it absolutely works. I've observed lower EGTs in my Duramax when I use it, too.
I bought the Kubota with about 430 hours on it; it appears to be in fine shape, but it doesn't seem particularly appreciative of being fed Diesel Kleen. The first time I added it, the machine developed a slight miss, a stumble/hesitation on rapid throttle increases, faint-but-noticeable soot under load @ WOT, and it seemed slightly down on power. It definitely runs cooler, and EGTs are way down, though. (By the time I bought my tractor, my grass had hit about hood height on the BX; on the original tank of fuel it had when I took delivery of it, the exhaust was heating grass stems enough to make them smoke, and the coolant temperature gauge stayed smack in the middle of its range. With the diesel kleen, the grass is no longer smoking, and the coolant temperature gauge is reading lower under the same loads and weather conditions.)
I'm just on the second tank of fuel since I bought the machine now, and it's taken to it better this time; no misfire or hesitation, and no soot. It still seems down on power but that may just be that I've pressed the mmm into use as a brush hog and the blades aren't really appreciating it. My hypothesis is that the machine had never been run hard, had not been fed good quality fuel, and the Diesel Kleen has dislodged a bunch of crap in the tank and plugged up the filters, and the 'soot' blowing out of the exhaust on the first tankful was probably carbon dislodged by the additive.
I've got a couple of new fuel filters on the way, and I intend to continue running Diesel Kleen in the machine at a ratio of about 0.8-1oz/gallon for the time being. There's really no possible way for the additive to cause any kind of mechanical damage, so we'll see how it does over the next few months.
I bought the Kubota with about 430 hours on it; it appears to be in fine shape, but it doesn't seem particularly appreciative of being fed Diesel Kleen. The first time I added it, the machine developed a slight miss, a stumble/hesitation on rapid throttle increases, faint-but-noticeable soot under load @ WOT, and it seemed slightly down on power. It definitely runs cooler, and EGTs are way down, though. (By the time I bought my tractor, my grass had hit about hood height on the BX; on the original tank of fuel it had when I took delivery of it, the exhaust was heating grass stems enough to make them smoke, and the coolant temperature gauge stayed smack in the middle of its range. With the diesel kleen, the grass is no longer smoking, and the coolant temperature gauge is reading lower under the same loads and weather conditions.)
I'm just on the second tank of fuel since I bought the machine now, and it's taken to it better this time; no misfire or hesitation, and no soot. It still seems down on power but that may just be that I've pressed the mmm into use as a brush hog and the blades aren't really appreciating it. My hypothesis is that the machine had never been run hard, had not been fed good quality fuel, and the Diesel Kleen has dislodged a bunch of crap in the tank and plugged up the filters, and the 'soot' blowing out of the exhaust on the first tankful was probably carbon dislodged by the additive.
I've got a couple of new fuel filters on the way, and I intend to continue running Diesel Kleen in the machine at a ratio of about 0.8-1oz/gallon for the time being. There's really no possible way for the additive to cause any kind of mechanical damage, so we'll see how it does over the next few months.
