I can also say that after several years of use, I have never experienced any negative with Militec1, and I have also used it in the above mentioned components in both diesel, turbo-diesel and petrol engines(Peugot,Mercedes, Mitsubishi, BMW and Volvo). Also, Militec is cheap, but you have to buy at least one gallon. You can use it for guns also. In fact, Militec1 is probably more known by people who use guns. But, I must say that I have had positive experience with Auto-Rx, solving leaking gaskets. But the only thing, as mentioned before, that have given fuel-reduction, noise-reduction and remarkable increase in horsepower, is the Xado threatment. I also went into their webcite and saw the testing that ADAC(German governments testing)had performed. That one is well documented, with compression testing, dyno-testing and so on. I am sorry I don't have availible/can afford this testing. If I had something to earn on it, I probably would have done it. On this forum I thought people was to share their experiences with different oils/additives and so on, so that people should not waste time and money on snake oils. At least Auto-Rx seems to have been accepted as a good additive, which it is for its purpose.