I have used System G with Premium, premium, as well as normal unleaded in my Wagon-R. Here are my observations.
System G+Premium = No difference.
System G+Speed = engine felt coarse and slight knocking.
After this I fiilled normal unleaded for one month and I felt the car running smoother.
Later I tried again System G with Speed and the car again felt a little bit coarse.
Immediately I filled System G with normal unleaded and I could recognize the smoothness of the car immediately.
It is my observation that, System G with premium fuels doest go well. System G with unleaded is very good.
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'03 HH Splendor - 28,000km
'06 Kinetic Blaze - 10,700km
'07 Kinetic Flyte - 4500km
'06 HH Zma - 21,600km
'07 WagonR Lxi - 25,600km |