why is that not recommend for car consuming "black" oil/engine oil?

hey, i'm quite free now and i have read all your posts. You are really a good seller man.. i would like to purchase from you as well.. but i do not have knowledge on my Iswara as well. Appreciate if you could help to clean?

Yeah... me too.. done on last tuesday.. car feeling lighter... accelerate more powerful now... thanks dude.. nice to meet u..

dude, i want to order three bottles.. can pm me the best price?