Originally Posted By: demarpaint
Originally Posted By: MolaKule
Originally Posted By: jk_636
I use it with whatever oil weight I am currently running in the motor and wouldn't ever go out of my way to use a thicker oil. 20% MMO is not going to "thin" it out that bad, or evaporate into thin air for that matter... Some people act like it turns your oil into water,
but it doesn't. I run it in the crankcase for the whole OCI,and haven't ever had my engine blow up due to lack of viscosity. Keep calm and marvel on.
No one said it was going to evaporate into thin air.
It is a fact that the three volatile components in MMO will evaporate after heating up while driving. When that occurs, no more cleaning results, which is why some people suggest using it as a flush.
As a flush, you never allow enough time for the volatile components to flash-off, which is the main function of a flush that contains volatile hydrocarbon components.
I've used it in a 6 qt. sump. 5 qts. of oil 1 qt. MMO and ran it an entire winter 3000-4000 miles several times over the years in various 300 I6 Ford engines, and never had to top up.
^This. Molakule I am not arguing your priniciple and logic, Im just trying to dispel the idea that MMO will evaporate so much so that you will have to top it off. I have never had that happen in any of the vehicles I maintain. If 6 quarts goes in, 6 quarts come out (- what the filter holds obviously.) Actually, more than that comes out because I use 5 minute motor flush every oil change, and I measure what goes in and what comes out down to the milliliter.