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What octane rating of fuel are you guys using in your Spark?

 

[SparkFan]

Spark engines are small 4 cylinder engines and don't seem to be high output 4 bangers which would require premium. Plus if it was premium i think that would defeat the purpose of this car.....affordability.

But I wont be shocked to hear some people are using premium.

I will be using regular.

 

[Chev Chelios]

Yeah i would definitely just stick with regular gasoline, you dont need to run anything more than a 87 octane on it.

 

[joehornback]

Yeah i would definitely just stick with regular gasoline, you dont need to run anything more than a 87 octane on it.

I just use regular gasoline, and I'm averaging 33 mpg, that's a mix of 60% city and 40% highway. The mileage is improving with the break in of the motor.

 

[chevysub]

Regular is all you need.

I just use regular gasoline, and I'm averaging 33 mpg, that's a mix of 60% city and 40% highway. The mileage is improving with the break in of the motor.

any update on your MPG, if it improved or stabilized or gotten worse?

 

[SparkFan]

Regular is all you need.




any update on your MPG, if it improved or stabilized or gotten worse?

yea I would like to know of any changes.

 

[MNSPARK]

I'm using regular, just filled up my 3rd tank and it says 40.7mpg

 

[SparkFan]

I'm using regular, just filled up my 3rd tank and it says 40.7mpg

Always a good thing when your car shows a better MPG than what it's rated for!

 

[All_Spark]

I used regular and got 41 mpg 70% highway and 30% city. Wonder how much more i could get. Has anyone put in premium for fun.

 

[Chev Chelios]

I put in premium once just as a treat for her. But it seemed to make no difference as our engines dont require higher octane. So pretty much it was a placebo effect. I get about 38MPG when using regular and do about 60% highway and 40% city. If you guys are trying to compare mpg with other spark owners a good site 2013 Chevrolet Spark MPG Reports | Fuelly