Hi there,

I just bought sonata 2011 2.4 limited from usa. I'm living in Lithuania and the question is: can I pour E98 fuels o just E95? Thank you.

 

Your Sonata is designed to run on a minumum of 87 octane based on the (RON+MON)/2 method of rating octane. In Europe, that is 92 RON octane.
US - Europe
87 - 92 (regular)
89 - 95 (mid grade)
91 - 98 (premium)

So you can use 92 RON octane fuel. Anything more than that is a waste of money.

 

In my country is just E95 and E98. E98 is cheaper then E95. So if I will use E98 is bad for car or normal?

 

That doesn't make sense. Do you mean Ethanol when you say E98?

 

yep, Ethanol. But I think you're right.

Another question. In my sonata is 17" rims, if I put 18" rims in that model like in SE models do not compromise that to chassis?

(sorry for my bad english )

 

Okay, I'm not sure about using 98% Ethanol in the Sonata. I'd stick with E95. You'll get better fuel economy with the lower ethanol percentage.

18" wheels won't upset the chassis. I installed 18" wheels on my Tucson that originally came with 16" wheels. Just be sure the overall tire height is the same. For example, I went from 235/60-16 tires to 235/50-18 tires when I swapped the 16" wheels for 18" wheels. That kept the overall tire height the same.

 

higher gas octane better mpg