[ahhl]

for the past 4 years, my multi always spew black smoke, only with some
addative, it reduces the smoke, but lately the smoke have become brownish
color...do anyone knows what the reason. is it the sign my EGR going south?

[acetech]

Hi friend,
Do send your vehicle for a checking rather to guessing here and there...

If you car installed EGR, then it should not has those kind of brownish
smoke, did your car really use the quality lubricant oil ?

Have a nice day.

Cheer

[lukeraj]

why doont you try usin fuelstick it reduces emmision and improve
performance