They last longer than platinum because they maintain their gap longer and dissipate heat better, other than that they are not necessarily more powerful or "better".
The coils die faster than the plugs! The RX8 Irridium plugs need to be changed at 25,000 miles per the maintenance manual. Replace the plugs and ignition coils when the car won't rev over 9,000 rpm smoothly.
Spark plugs were changed at about 10,000 mile intervals. The arrival of plugs made with special metals such as platignum tips, or irridium, has extended the interval to as much as 60,000 miles. You need to check which type of plugs are fitted to any car, as standard plugs could have been used instead of the longer life ones. The handbook will usually recommend which type to use.
use factor recommended spark plugs most likely platinum
Longer life, better spark
how to replace plugs on 93 Nissan 300zxIf motor is same as 90 300zx 3.0 v-6 non-turbo When you lift the hood you will see the spider legs (that's what i call them) coming off the intake and motor cover in between each one of these legs are little plastic caps with screws or bolts in them remove the caps which are actually coils and plugs will be inside the correct plugs are an irridium plug ngk still makes them for this car I just ordered 6 plugs THAT COST ME 63.00 FOR PLUGS ONLY BUT YOU DEFINITELY WANT TO REPLACE WITH AN IRRIDIUM PLUG NOT NECCESSARILY NGK BUT DEFINITELY IRRIDIUM (just for info this vehicle has no plug wires or at least my 90 model doesn't Hope this helps!!!!!
it can
Actually , there are no spark plugs in a diesel engine
The plugs i believe are near the exhaust manifold.... If you are unfamilliar with changing plugs you should not do it yourself Because the plugs are near such high heat they are prone to fouling Try to use NGK plugs and spring for the irridium As you may already know never change plugs on a engine that is warm or hot. First thing in the morning stone cold is the best time to do it. You can google ask a Mitsubishi Tech on the web for further assistance
The general consensus with most performance oriented Bronco owners is that original Ford Autolite or Motorcraft spark plugs work just as well or better than most "performance" spark plugs.
when do you change spark plugs
AC are the OEM spark plugs and they are excellent plugs. I would recommend you buy AC/Delco Iridium Spark Plugs. They are as good or better than any others you can buy. NGK are also great plugs and I have been told they make the AC plug but I cannot verify that.
autolite 2974 or xst2974 (irridium) champion rcj7y, cj7y ngk bpmr7a