i've had the Tib for about 1000km now and i've change the spark plug and look at them and the tip is withe a bit .... then i started asking my self what fuel should i put in ..... 87-89 regular or prenium 91-92 ? or the midle one 89-90.....

i've look in the driver's manual and it's not really clear so my car is stock for now what fuel should i use ? sad.gif

and i've search and not found really clear anwser sorry sad.gif

 

i run my car on just regular grade fuel and never had a problem... did the same with the jetta and never really noticed a difference.

i dont think its a noticeable difference anyway. but maybe one of our more experienced tib owners will correct me.

 

i use regular...its also cheaper!

 

It has been covered ALOT. Use regular, if ure tuned for premium use premium.

With higher octane theres a slower burn with more anti knocking properties. Basically just use regular. If u do major mods like turbo or hi comp or cams etc then ure prolly gonna use premium. But that depends how ure a/f ratios are etc

 

thx Brian i know al that..... but sometimes they make the car and recomand to use prenium ..... or they say just use regular i was wondering what hyundai said when the car was new..... i don't remeber evan if i had a hyundai back then never look into tib

so thx anyway i'll stick to regular wink1.gif