Was it the....

On my last oil change I added Xado to the Mobil 1 0w40 and use the Xado engine flush. I used Xado on my 330i and found the engine ran smoother and I got an extra 2 mpg on the high way.



So I put the Xado stage one in my 335xi and here are my findings.



My car seems to burning less oil so far 2200 miles and oil level has been steady.



The leftover accumulation of crud on my bumper from the exhaust is has been greatly reduced.





So was it the Xado or the Mobil 1 ? Please opine



Thanks in advance



Ollie