Originally Posted By: HTSS_TR
Originally Posted By: demarpaint
I'm still looking for proof the product doesn't work. A handful of people are looking for proof the product works, how about proof to the overwhelming majority of people who had success, let them see proof the product didn't work for them.
I don't have proof that MMO doesn't work in all/most fuel systems, I only tried once in my E430 and the result was negative. I added 8oz MMO into E430 gas tank at gas station then fill up to capacity of 21 gallon. As soon as within 4-5 miles the engine started to run rough, it took 3-4 fill ups to get the engine ran smooth again, MPG seems to suffer a little. I didn't try MMO in fuel system on any other car I have, one bad experience scares me enough to try it again.
But, MMO in oil sump seems to do good job at cleaning and improve MPG a little, it also quiet down engine noise.
I may continue to use MMO in engines, usually add a pint at around 1-2k miles before oil change, but adding MMO to gas tank at every fill up is too much trouble and negative result once is more than enough for me to stop experience it.
Thanks for sharing, it is info like this that can be helpful to some members!
I actually found that TCW3 makes my Aerostar idle smoother than MMO does. At least as confirmed by two well calibrated butt dynos, mine and my wife's.