Problems with RON 95

[xenith]

Hi everyone...
I've got problems when running on RON 95. Previously I used 97 and then switched to 92 when I read owner's manual saying minimum requred 91 until they discontinued it and was filling 97. I tried 95 and then there was knocking at my engine. My engine had no problem running on 92 but with 95 higher FC, lower performance and knocking. I've been filling Caltex because compared to other brands it is most economical for my '02 CBU Kia Spectra. Anyone have the same problem with Caltex RON 95?

 

[bvalve]

shouldn't be a problem using RON95 since your car owner's manual required min RON 91.
How u know your car is knocking?
l

 

[xenith]

Yeah, there shouldn't be a problem. I can hear the sound.

 

[TRD.AE92]

Yeah, there shouldn't be a problem. I can hear the sound.

Give mechanic to check timing...