Should I replace my spark plugs?

I'm glad you chimed in because I love your avatar and I hadn't seen it in a while. I also want you to know that I don't know a word of which you just said because of it too

Lol on a more serious note though, I agree. NGK runs best in Toyota's and the platinum is a good secondary option if you don't want to shell out for the iridiums they too last to at least 100k no problem. Anything short of NGK, Bosch, autoheavy (autolite), loser (champion) etc. etc. and you will run into problems. Anytime you alter the electrode design other then what came out as well, you will have issues.

 

Well, there is enough silicone in RTV to outgas and kill an O2 sensor. What you are proposing is potentially allowing it to drip directly into the combustion chamber. I think I'll pass on that bit of advice.

Here is a link to the Walker website that talks about silicone poisoning. At the bottom is a picture of a silicone poisoned sensor. Do what you want.
http://www.walkerproducts.com/products/oxygen-sensors/

 

badger..i've heard the same thing.

 

My question is how are you going to get RTV silicone on an oxygen sensor anywho? If you are irresponsible with it and put huge GOBS everywhere where you put it on maybe I could see some of it clumping off and dancing around in the combustion chamber.

Take my advice with a grain of salt. It's what I have been doing for years and not once have I had a return with a premature or early oxygen sensor failure.

 

The problem comes from outgassing. Reasearch it if you want to know. There is a reason why they make oxygen sensor safe RTV, and it has nothing to do with sloppy application.

 

Oh that's right the grey tube clearly states sensor safe on it. I'll have to look into it sometime.

 

Right...... I'm not disagreeing with your method at all, just the use of silicone. I do the same thing to free up a stuck plug. You have to get lube in there or you'll gall the threads and really screw things up. I would just stick to petroleum products like wd-40.

 

There are no ethanol stations near us in SoCal.