2012 GT E85 plug issue - corrosion after 2 years including winters - pic

[twistedneck]

I had these plugs in my cars for two full seasons and two long cold winters in my garage. I do not use stabil or anything to prevent rust.

I noticed the car started to develop a faint misfire and now that has gotten worse. all the plugs are like this based on my sampling.

Is it possible E85 plugs need to be changed every year? I'll let ya'll know if it fixes the misfire issue on Wednesday.

Should I get a different type of plug for E85? If I'm going to replace them every year I have no intention of buying expensive Irridium plugs.

 

[c6zhombre]

that looks awful. I barely drive my car, and leave TR6s in for one year and they look nothing like that at all. They look practically brand new. I can't imagine going 2 years would make a big difference. However…I don't see harsh winters, in fact it rarely dips below freezing at any point of the year. E85 in my tank is usually testing 85% or higher.

 

[Weather Man]

You spent the money for FI and everything that goes with that and get bucky for $60 of plugs once a year?