Which spark plugs do yo guys use? Recommended is NGK iridium,but is it the only way to go? What about Autolite or Denso spark plugs?

 

I used the oem ones when I performed the 120k service. Just bought the service package from Sewell.

 

Use OEM. I bought mine from Seeell Lexus with our discount. Best deal around and you can't go wrong.

 

Oem.... Just changed at 100k, fowled plugs were causing missfires.

 

OEM all the way

 

okay thanks guys!

 

I used the OEM too, and I don't see a reason for switching to anything else. It's what the engine originally came with and 99% of us aren't doing any heavy engine mods, so they are really all you need! lol

 

How often change them?

 

Every 60k miles

 

I used the cheaper Bosch double tips, in my GS 300, and my idle was never as smooth. Gone OEM since and haven't had a single hiccup.

 

just did the 120k service and spark plug replacement. got everything from sewell. still runs like a beast.

 

Change them every 60k with OEM plugs from Sewell.

 

Don't use an Autolite plug in anything other than a lawnmower. Stick with OEM.

 

OE plugs from Sewell is the ONLY way to go. Factory plugs are Nippondenso, if I'm not mistaken. I got mine from Sewell for about half what my local Lexus and Toyota dealers wanted for them. Lexus wanted $25 per plug, Toyota told me $20. Sewell charged about $13 per plug plus shipping.