Din

has anyone used a different brand of spark plugs on their 2006 GS300 other than the Densos?

GS350Lexus

iTrader: (5)

Yes some one has and had very big problems, if its the cost issue go to sewellparts.com and get em with an clublexus account for like $12 a piece if i remember corrrectly.

Din

how do i get a clublexus account on sewellparts.com ? I just checked their website the are listed for around $18 a piece.

Din

just signed up as clublexus memeber i see them for a little less than 13$ each now. thank

benbuilt4u

iTrader: (5)

Oem denso's at autozone 8 dollars each!

toptech

realistically you should have no issues when switching to a different brand of spark plug. if you plan on doing this, make sure the spark plug was made for you specific vehicle. just because the parts guy at the counter gave u some plugs after checking his computer, it doesn't mean they are right. after you remove a plug, put it up next to the new one and make sure the distance between the top of the threaded piece and the electrode at the bottom are EXACTLY the same. the number of prongs should be at least the same as the original if not more. i have replaced the plugs in my old acura with E3 diamond fire plugs and i believe they worked great with no issues at all. a good thing to do when reinstalling plugs is to put a small amount of anti-sieze on the threaded surface and put a very small amount of dielectric silicone on the inside of the coil to ensure easy reinstallation and removal. do not get anti-sieze on the electrode, it will cause a misfire if u do.

TWong350

iTrader: (8)

I always recommend sticking with oem plugs, especially on stock engines.

Toptech offered good advice with the anti-sieze and silicone recommendation!

jre002

Agreed, just use OEM on stock motors.

johnnunez2

no non-oem plugs have three prongs like the oem ones for this car. unless maybe the ones your talking about or something more expensive than stock! i went with the best ones from autozone and they only had one prong. they sucked! in a week my car said i was getting only 16 m.p.g. i ordered oem from sewell and am back to normal. stick to stock. theyre actualy really good compared to other ones.