Spark Plug issue (must-read)

[shaker1]

I read somewhere that a law was passed that a dealer can not void a warranty if the aftermarket part has no relation to the part that went defective. So it would be safe to say that any aftermarket part i.e. Bolt on parts, should not have any affect on the rings if they went bad. I would agree that it would be a ring or vaulves that go bad to cause this in cars. Smoke and brownish liquid on a plug would say that oil is getting down to the top of your pistons. I hope this helps.....

It's aliiiive! You guys know this thread is 1 year old, right?

Suppose that they claim your aftermarket intake cause a lean condition that contributed to a valve or ring problem. It is going to be on you to prove otherwise and not worth the trouble, I would take it off.

I have heard of Ford refusing warranty coverage for many seemingly unrelated aftermarket "mods".