Ahem
Finally something I can talk about
Looking at the shortage of fossil fuels wordwide, Ethanol was added to Petrol to obtain a hybdrid mixture of ethanol and petrol.
This mixture has a higher octane rating than normal petrol, owing to the spirit 'ethanol' combusting easily.
Ethanol is cheap, and is a by product of sugar production.
The hybrid fuel uses 'E' to denote the percentage of ethanol in the mixture.
E10 is 10 percent ethanol, and that is the only one available in Pakistan, though worldwide you might find more variants with more ethanol content, eg E30.
Coming to the Suzuki cars mentioned above, E10 is not recommended for Mehran, Ravi, Bolan and Alto. Basically, all carby cars, even old cultus.
I have had the misfortune of owning Suzuki cars for the past few years, but I am a quality freak.
Result?
HEated arguments with Suzuki South staff, then a friendship, and then my own brand of quality control implemented in my Suzuki cars only
At Suzuki South, i was told why ethanol is not suitable for carby cars.
All these cars are old, and even if bought new, the technology is almost a decade old.
Ethanol is a spirit, it is alcohol.
As such, it has the capability to eat away at some of the rubber and plastic parts in these cars that are vital for engine functionality. Hence, u could end up with serious damage in ur bid to save several rupees per litre.
+1 for what ogre said above.
For other normal cars, e10 is fine. I've used full tanks of e10 on my swift without harm and with noticeable improvement in performance, though mileage fell. I've realised that e10 and normal petrol from a good station and a bit of hi-octane throw in get u the best mileage