Quote:
My experience with my MPFI Esteem:
1. Plain Regular 87 Octane: Lots of knocking at RPM below 1500, poor acceleration, poor average (12Kmpl highway, 10Kmpl city)
2. Regular 87 Octance + System G: Some knocking below 1500 RPM, slightly improved average (13Kmpl highway, 10Kmpl city)
3. Speed / Power: Moderate knocking below 1500 RPM, lots of knocking while accelerating in 4th and 5th at almost all RPMS! (This was a big surprise to me too!). 13Kmpl highway, 10Kmpl city.
4. Xtrapremium: No knocking right down from 1000 RPM! Slight knocking below 1000 RPM, but this is really asking for it... Great average... as high as 17Kmpl on the highway once, but normally 15Kmpl highway, 12Kmpl city. Best acceleration too... no knocking = lots of torque!
I have not tried Speed 93 or anthing with a higher octane rating than Xtrapremium. I tank up on the Mumbai - Pune Expressway and actually let my car run on fumes to reach the only pump selling Xtrapremium!
My vote for the MPFI Esteem: Xtrapremium when you can get it, otherwise Regular 87 Octane + System G.
I may be wrong though... maybe my car is setup with an advanced / retarded ignition timing that gives a good performance with a slightly higher octane fuel, but makes it incompatible with the lesser stuff.
My dad's carburetted '96 Esteem runs pretty well with the regular 87 octance and performs best with "Power"... nothing special happens with the more expensive higher octane fuels.
- T u r b o C -
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Hey thanks!
That's a very good analysis.
I hope you are talking about XtraPremium 91 Octane fuel from Indian oil?
I have topped up my tank for both the Baleno and the swift with this XtraPremium fuel. It's about 1.5 Rs costlier per litre to normal 87 Oct.
Let's see the effect on FE and driveability..
( i do notice the Baleno to be a tad..quicker at low rpm's but that cud be a illusion!)..
BTW pardon me for the ignorance..but what do you mean by System G - are these the Iftex additives.