I use 100 octane fuel all the time, but as I usually travel to places where 100 octane fuel is not very easy to find, I want to know if by refueling the car with 95 octane will have any negative effect to the car

 

Right inside my gas fill cap, sticker says "Premium" gas required.
Premium in Texas is 93 octane, which is all I ever use, & never use mid 91 nor reg 87 octane.
More importantly is whether to use "Top Tier" gas brands or not.

Not sure what's the "Premium" gas octane value is in the middle east is, but would recommend you use that. So if Premium there is 100 octane, I wouldn't use lower. If Premium there is 95, using 95 octane would be no problem.

 

For octane ratings in the Middle East, like Europe, they use RON, but in the US they use AKI. The manual states minimum 95 RON is recommended, which equals 90.25 AKI for US markets.

Blue Jag from the manual:
OCTANE RATING
The vehicle manufacturer recommends the use of premium unleaded fuel with a minimum octane rating of 95 RON. Using the correct fuel specification helps to maintain the vehicle's performance, fuel economy, and driveability.
If premium unleaded fuel is not available, use unleaded fuel with a lower octane rating, down to a minimum of 91 RON. Using lower octane-rated fuel may reduce the engine's performance, increase fuel consumption, cause an audible engine knock, and cause other driveability problems.
CAUTION
Do not use fuels with an octane rating lower than 91 RON, as severe engine damage may occur.

 

The only place you're likely to ever see anything below 91 RON / 87 AKI is in very high-altitude regions like Colorado where regular is 85, mid-grade is 88, and premium is 91. As long as you're above the recommended minimum the anti-knock sensor will compensate by altering ignition timing to keep things running, albeit with lower performance.

 

Lower octane works at higher altitude since there is less oxygen/volume of air, reducing the likelihood of detonation. There is a noticeable diminishment of power at mile high altitudes as well.

 

Also, the use of the word premium is universal term for higher grades. Premium is the lowest grade available in much of the Middle East, followed by Super, then Ultra as the highest grade.

 

Thank you very much!!