Quote:
Originally Posted by ST7677  Congrats on your new Civic Tony...
Any issues will not be evident in single / few fills. I am not saying there is an issue.
But then there have been issues with other cars - specifically Skoda on using premium fuels. If you search you will find some thread in team bhp. And anyway it is not a good idea to use high octane fuel during the Run-IN period of your car (1st 1000km).
BTW did you notice any benefit of using Speed97? |
The only noticeable difference was on mileage with Speed 97, which may not work out considering the difference in fuel price. I definitely felt there is a difference in low end torque compared to the car which I got for test drive. There is no conclusive evidence on better power or torque for Civic since I had driven hardly 2000KM out of which only once I filled it with Speed 97. Generally I fill Shell premium since it is on my way to office.
The question of compression ratio still remains, unless proved otherwise I go with 10.5 for Indian Civic which is pretty high and needs higher octance fuel! The only problem with using higher octance fuel than rated is that it can cause delayed starting at cold conditions and extreme cases exahust may contain unburned gas. The downside is that you may end up paying extra money with out any benefits.
I am very sure that it cannot cause any problem to engine (my arguement is purely based on theoritcal knowledge) unless somebody can convince me with data. I almost always filled premium pertrol in my Palio 1.6GTX (1:9.5 compression ratio) for 6 years and I never had any issues with it and felt there is a difference in performance when I was forced to fill 87 Octane.
But I generally filled 87 Octane in my Getz 1.3 GLS or any other cars I previously owned since I could not figure out any advantage because of low compression ratio.
Regards,
Tomy
Note: Tomy is drived from of Thomas and Tony is the pet form of Antony, so they are totally different names.