hey, it seems like my service engine soon light turns on when i use 93 octane from Shell. The only reason i used it is because i heard its the best. I had a buddy turn it off like 4 times already. He told me it was probably the fuel i use, cause it was an O2 censor code. I changed it to 87 octane from shell since it still had 93 on it so it can mix and the service engine light turned off byt it self after a few days. So i was just curious if anyone else has had the same problem

 

93

IBTL

 

why would your SES go on for using a higher octane? Manufacturer recommends premium anyway.. gas might be doing something, but it's not the cause of the light.

 

 

thats what i dont understand. i have always used shell 93 v-power in my cars. exept this 1 the light goes on. I had it on before i put 87 fuel on it to see what would happen, and it turned off. weird

 

Use a different brand of 93

 

http://forums.maxima.org/showthread....377#post740377
http://forums.maxima.org/showthread.php?t=374481

 

Some people just don't get it.

 

Replace the o2 sensor and your code will be cleared for good. It's not the gas, it's just a coincidence.

 

use premium like it says on the fuel door...then close the cap all the way.

 

I use premium fuel all the times from Shell or BP.

 

Either its my mind playing tricks on me or whatever but for some reason V-Power (93) makes my car seem more sluggish. After going between Shell,BP, QuikTrip, and Costco gas I just use the BP since their prices are actually cheaper than Shell around me.

My car eats better than I do I swear.

 

Maybe you should actually have the code pulled instead of assuming it's the fuel causing the issue.

/thread