Yet another mixed engine of Denso/NGK's.
- Thread starter Casper
- Start date
greasefingers
New member
I believe the only difference is that platinum is a much harder metal and therefore will last longer. Heat has to do with the length of the ceramic material within the plug.
It is also surprising that a similar engine (luxus) has different plugs. I wonder what the tundera v8 calls for?
It is also surprising that a similar engine (luxus) has different plugs. I wonder what the tundera v8 calls for?
greasefingers said:
I believe it's the other way around. Iridium, part of the Platinum group, is harder and has a higher melting point, and is the one that lasts longer (200,000 km in the 4Runner V8). The plug probably utilizes an alloy of iridium and platinum. I was just wondering what was the difference between the two iridium plugs listed. Maybe it is in the alloy composition or geometry.
The Land Cruiser calls for almost exactly the same plugs. I didn't look up the Tundra.
greasefingers
New member
Yea yea yea. That
Casper
New member
Koz,
i changed the becuase im a performance freak and its a fairly cheap upgrade especially for those with 05 v8's. In addition, knowing that there is multiple cases of mixing of plugs, i knew that there was a good chance that i would have mixing and so why not standardize all of them. Obviously i did have the mix and its made a noticable improvment in the running of the truck.
i changed the becuase im a performance freak and its a fairly cheap upgrade especially for those with 05 v8's. In addition, knowing that there is multiple cases of mixing of plugs, i knew that there was a good chance that i would have mixing and so why not standardize all of them. Obviously i did have the mix and its made a noticable improvment in the running of the truck.
Koz
New member
Casper,
I just noticed your mods and I see are using additives. Do yourself a favor and stay away from them. Additives are chemicals and they are the first thing to break down and cause contamination. Even WaterWetter (It is a goog product) causes brown foamy slime in your cooling system over time.
Koz
I just noticed your mods and I see are using additives. Do yourself a favor and stay away from them. Additives are chemicals and they are the first thing to break down and cause contamination. Even WaterWetter (It is a goog product) causes brown foamy slime in your cooling system over time.
Koz
Casper
New member
Koz said:
I threw that prolong in there a while ago..really i should take it off my sig. As for the water wetter, i know what it can do to the cooling system and thats why i have it flushed every 2 years.
oil and coolant are the two things you dont want to screw up in your system if you plan on keeping it for a while.
As for how much they were, i think i got them for about 8 bucks a plug which is cheaper than the oem plugs. I wish i remember where i got them from so i could lead you there but you should be able to do a google search and come up with them.
Bluto--the removal and all wasnt that difficult but my back is sure paying for all the leaning over that i did. There are some tighter spots on the right bank. Its takes about an hour and a half i would guess.
I'm thinking about replacing all 8 plugs at my next oil change in about a month. I'm looking at the NGK Iridium IX plugs. After reading about the plugs on NGK's website I found that these plugs come in different temperature ranges. Some plugs have a larger heat sink to remove heat of combustion out of the cylinder and some have a smaller heat sink to ensure the plug stays hot enough to burn off carbon on the electrode. I read about them a little, but I am curious as to whether or not I should use a "hot" or "cold" plug. Any info here Casper?
POS Racing
New member
Why?hossmaster said:
OK,
I just finished replacing all 8 OEM plugs with NGK Iridium IX spark plugs. I'm happy to report that all 8 of my OEM plugs were Denso Iridium plugs, so I'm not sure if this replacement will make a difference in fuel economy or performance.
After a test drive, however, I can report that the engine sounds louder inside the cabin at high rpm, and it seems like there is a slight improvement in throttle response. This is after one 10 minute drive though, so it may just be me.
Didn't take me too long, about 3-5 minutes per plug, and I did remove the intake tube to make getting to the passenger side bank a little easier. About an hour all up.
I just finished replacing all 8 OEM plugs with NGK Iridium IX spark plugs. I'm happy to report that all 8 of my OEM plugs were Denso Iridium plugs, so I'm not sure if this replacement will make a difference in fuel economy or performance.
After a test drive, however, I can report that the engine sounds louder inside the cabin at high rpm, and it seems like there is a slight improvement in throttle response. This is after one 10 minute drive though, so it may just be me.
Didn't take me too long, about 3-5 minutes per plug, and I did remove the intake tube to make getting to the passenger side bank a little easier. About an hour all up.
Just got back from taking the ride out to dinner tonight, and it seems like there is a little more in the midband. Seems like its firing alot stronger at high rpm too. Throttle response does seem better after a longer drive. It seems like it idles smoother too. Not bad results for ~$60 mod, and an hour of a nice warm Sunday afternoon.Casper said:
