2006 Pontiac Grand Prix BAD GAS ? Engine Performance

Since that is the only code, tell me, have you checked to see if the catalytic converter is plugging? What condition were the plugs when you removed them (any wet with gas)? If the engine is warmed up and running, take a look at the catalytic converter to see if it is glowing red hot.

A couple were at .063, .065, .058, but none were wet. By the catalytic being red does that mean it is plugging and if so what causes it to plug wouldn't I get a code for oxygen sensor. I'm not sure how to check that I don't have tools for that.

Just do a visual on the converter after driving it to see if it is overheating and getting red hot.

I know its not overheating, so far from what ive searched it says bad gas but I'm gonna check what you said. See if it turns red.

ok its not getting red at all

That's a good thing. Chances are it's the gas you purchased.

So how long does it take for a car to start reacting to bad gas.

It differs based on how contaminated the fuel was. It could start within a mile or take much longer for issues to be noticed.

So what would you recommend doing at this time. I don't really go anywhere so the gas is still in there. Is this gonna cause any damage to anything. So far ive been told to use the heet, which is in the tank now and run that thru then fill up with high octane fuel and add any octane booster along with the Lucas gas treatment. I'm sitting at between 1/4 and 1/2 tank of gas. ive been going out to run it for about 10 min. at a time just to run out the gas. Is it safe to add 2 chemical treatments at the same time.

I'm not sure what was in the gas or if that is even the problem yet. So, it's hard to say if anything can be damaged. However, if it is still running, it should be fine. As far as the chemicals mixing with the fuel, if you get high octane fuel, it should help clean things out for you and I don't see a need for anything additional to be added. The gas treatment alone would actually be good.

Well filled up with high octane today, didn't add anything extra. Ill let ya know how it works out and thanks for all your advice.

Sounds good. I'll look for your reply.