Honda Car Forum

is regual fine or not? because the "check engine" sign turned on, and i'm not really sure why. Can someone help.

regular is fine if it is not an Si. even leaving the gas cap loose can set the check engine light. have it scanned to see what the problem is

Regular is what is reccomended so use that. If your check engine light came on, check the gas cap to make sure it is tightened enough.1996 Federal regulations of OBD2 or On Board Diagnostics 2 made mandatory many new sensors in the engine, one of which will trip the Chek Engine light due to an unpressured gas tank... which can be caused by a loose fuel cap.There couldbe more reasons why the light is on, but that is the most simple/common one.