Versa12 I'm not offended just don't see the point in a long message about octadiagnose the vehicle and couldn't find none assuming I don't know. your original message was one sided and arrogant, as are most of your posts.
jswilson1987. thanks I also agree with what you said, under my driving conditions and speeds higher grades are better for my vehicle.
I'm open for all advice and tips I just don't like one sided opinionated ignorant views. and considering Nissans MR18DE issues that's why I asked for feedback.
TESTED FUEL ALREADY, that's one of the reasons why I have this post because I ran through the vehicle and checked all these things and no engine codes. dealers going to take a look on Thursday because at this point if I dig in a deeper I'm going to void my warranty.
I really shouldn't be responding but I find your post frusturating.
I may have come off as arogant, but I find it a waste of peoples time and money to believe in myths that have been proven inaccurate or false for years upon years. I worked for a shop for quite awhile and did not agree with the practice of ripping people off with inflated prices or uneeded service. That is why I left the industry.
Putting higher octane fuel is a waste of money. Simple. That is why I posted some information about what octane ratings actually mean. Seems to make sense to me since you said your car ran "amazing" after putting a higher octane fuel in it....which does nothing for it in terms of how it runs for a Versa....which you obviously thought it did somehow affect performance.
I gave you information as to what your problem is and you don't take it. Instead, you fire back upon me as if I am an idiot when you claim to be a mechanic or whatnot. Pulling the plugs and checking for spark is something nearly anyone can do and will give you a definite answer if they are firing or determing how strong the spark is by the color.
Again, if the issue started after filling up it is bad gas. That is the only variable in the factor of the vehicle running "Amazing" and then "on 2 cylinders". I'm not sure what method you took of testing the fuel, but I think you need to retest it. How exactly did you test it?
I suggest adding HEET to either fix the problem or rule out a possibility and you act like it is going to hurt your vehicle. Then you ask if I know what it does to the injectors/plugs.....In fact I do - it will do no harm.
But whatever. Waste the $ at the dealership instead of spending a whole $5 on HEET and fixing the problem yourself.