Originally Posted By: jonny-b
In regards to performance and fuelconsumption: Fuelconsumption may be down some, but since it is less than 5%, I will not make any conclutions. In regards to performance and noice, it idles smoother and seem to have slightly better performance, while making less noice. I would still recommend this Motorsilk, because it seem to make a difference.
I added MotorSilk at the beginning of summer with Mobil Clean 5000, and changed oil and filter after about 2000 miles. Now I have Mobil 1 E.P. 5W-30 and I observe almost 5 % better gas mileage on a DOHC engine.
Any more Motor Silk experiences?