You got the autolites or the NGK BKR6EIX?
That's just for your application. Not everyone can do this. Different spark plugs have different properties. Hence with some Denso IK series plugs, they are colder in 1 or 2 steps. Mostly for forced induction applications.You are probably going to start lots of discussion with this one!
No, I would not buy a $7.00 plug when a $2.00 plug will do. As a matter of fact, I get the $1.50 Autolites #3932. Toyota says to change them every 30,000 miles anyway.
I just replaced mine for the first time at 90,000 miles. I guess I should have looked in the owners manual sooner if they're saying to replace them every 30,000 miles. I am taking a 1,200 mile round trip over the next two weekends, pulling a boat, so am hoping the new plugs will improve fuel economy. I was amazed at how much the factory plugs had eroded; they were at 0.063". An internet search turned up what appeared to be a Toyota service bulletin that said they should be 0.031". It's amazing that I had not noticed it in the way the engine runs.You are probably going to start lots of discussion with this one!
No, I would not buy a $7.00 plug when a $2.00 plug will do. As a matter of fact, I get the $1.50 Autolites #3932. Toyota says to change them every 30,000 miles anyway.