johnee78

iTrader: (4)

What kind of spark plugs can be used for the first gen gs300?? Can the plugs for a second gen work???

VVT-i

You have to look at the number on the spark plug itself. The heat range or gap may be difference even know both plugs are platinum.

saber

Look in your owners manual index under "engine specifications" . Turn to the "engine specifications" page and there it will tell you exactly what Nippondenso or NGK spark plugs to use.

lexusk8

Try out this link for all your spark plug needs: http://www.sparkplugs.com

johnee78

iTrader: (4)

I cross referenced the spark plugs and the denso iridium plugs for my my gs are IK16..Can anybody verify this please??Is there an advantage to using these plugs???

johnee78

iTrader: (4)

johnee78

iTrader: (4)

can someone verify the plug number???

lexusk8

johnee, you're correct; the Denso plug part # for your '93 GS is IK16. Here's the page listing all available spark plugs for your car:

http://www.sparkplugs.com/results_ap...1&AAIA=1187401

LB Lex

Thanks for the links Lexusk8 I've been reading through the Spark Plug 411 section and it states that iridium plugs last longer and allow the manufacturer to use a very fine (thin) electrode so it takes less voltage to jump the gap, which in turn helps with power and gives fewer misfires. It also said that Denso iridiums have an electrode size of 0.4mm and the NGK iridiums are 0.7mm (regular plugs are 2.0-2.5mm). Since there is around a $25 difference between a set of Denso Iridiums and NGK iridiums, it's really no big deal to get the best.

My question is, does the difference of .3mm between the Denso and NGK make much of a difference?

johnee78

iTrader: (4)

Thanks, that site is where I got my info to begin with.I just wanted to be sure before I ordered...Thanks again..