clear all your codes and start over.
there are a lot of misfires and o2 codes,
but you dont know how long they have been there.

I would clear them and see what comes back

 

Cleared the codes and is running fine w/o codes at the moment....
Had to fill it up today and will do some techron as well..

 

that's the problem with the first time you pull codes, you don't know how long they have been stored

 

that's right!
when I saw all the codes my blood pressure went to the sky! LOL

 

so far no codes...
filling up today with these guys...
I know the discussions about best fuel brands are countless. But isn't there a comparison chart about the different brands? like the additives, ethanol content etc? I would guess that the petro companies should be bragging about why their gas is better than their competitors with some facts.
Just the facts, instead of " we really keep your motor happy " ....

 

I don't have a choice in the NE. choices are 87 98 or 93 octane, so 93 it is.

 

Wouldn't that be refreshing?!? It's all about fleecing the public and catering to the lowest common denominator.. They'll make a cartoon with microscopic soldiers, fighting evil carbon deposits with swords, inside an engine! I'll buy that for a dollar!

 

I use Shell 93 octane almost exclusively and my engine stays pretty happy. It would be nice if there was a legitimate comparison though.

 

I use Chevron supreme 92 octane with great results.

I heard Costco was using Chevron as their source so I tried a tank of that, If it is Chevron it is not the same gas. Not sure what the difference is, maybe more ethanol or something. Definitely noticeable with less power less smooth running.

I swear my engine is a 500lb bad gas sensor.