Iridium Spark Plug
Thread Starter
Pole Position
Joined: Jan 2003
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From: Florida
1995 LS - Iridium Spark Plug - GOT THE CORRECT TYPE
I need to change the park plugs in my car. I have been searching hard for a correct replacement for a 0.8mm gap iridium plug. All I can find is the 1.1mm gap plugs. Has anyone used a 0.8mm iridium plug before, and can you post the model number please. Thanks.
Last edited by ychachad; Jun 12, 2006 at 09:52 AM.
Lexus Champion
Joined: Mar 2004
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From: Arizona
How many thousands of an inch are you looking for? Does it not use the .044 plug gap? A larger gap is better than a smaller gap; say .030..
Here is a spark plug web site .... https://www.sparkplugs.com/
Here is a spark plug web site .... https://www.sparkplugs.com/
Thread Starter
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Joined: Jan 2003
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From: Florida
I am looking for the 0.8mm gap or the 0.032-inch gap plug that is used in the GEN 2. Not the 1.1mm or the 0.043-inch plug that the GEN 1 uses. Believe it or not, although they are the same engine, the spark plug gap is different between the gen 1 and gen 2.
Anyone with a GEN 2 or gen 2.5 that is using the iridium plug???
Anyone with a GEN 2 or gen 2.5 that is using the iridium plug???
Thread Starter
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Joined: Jan 2003
Posts: 393
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From: Florida
GOT IT!!!
FYI, the gen 2 from 1995 to 1996 used a 0.8mm gap. The correct OEM plug for that is the NGK BKR6EP8, not the BKR6EP11 as many places state. The equivalent NGK Iridium plug is the BKR6EIX, that's it, stock number 6418. It too has the correct 0.8mm gap.
The 1.1mm gap plug that I am using eventually caused my CAT to foul up and led to the check engine light. I just found out from my backup Toyota mechanic.
All Gen 2 1995 and 1996 owners take note.
I have not posted in a while, it's good to be back.
FYI, the gen 2 from 1995 to 1996 used a 0.8mm gap. The correct OEM plug for that is the NGK BKR6EP8, not the BKR6EP11 as many places state. The equivalent NGK Iridium plug is the BKR6EIX, that's it, stock number 6418. It too has the correct 0.8mm gap.
The 1.1mm gap plug that I am using eventually caused my CAT to foul up and led to the check engine light. I just found out from my backup Toyota mechanic.
All Gen 2 1995 and 1996 owners take note.
I have not posted in a while, it's good to be back.
Thread Starter
Pole Position
Joined: Jan 2003
Posts: 393
Likes: 1
From: Florida
From what I gather, yes. But check your 1997 LS manual. Although you may have the 0.044" gap plugs installed, they may not be correct. I have the 0.044 plugs and that was my problem. If your manual states the 0.8mm plug, then you need to get the 0.032" plugs like I do. Keep us informed as to what your manual states. I got the NGK Iridium IX on order at the local Advance Auto, I'll keep this thread updated once I get them installed by the weekend. BTW Advance auto had the lowest price too at $6.95 each and same day delivery.
Originally Posted by kalbo_1
Are these specs strictly for the 95-96 only? I was just about to buy Denso Iridiums for my 97 that has a .044 gap. Thanks for the info.
Originally Posted by ychachad
GOT IT!!!
FYI, the gen 2 from 1995 to 1996 used a 0.8mm gap. The correct OEM plug for that is the NGK BKR6EP8, not the BKR6EP11 as many places state. The equivalent NGK Iridium plug is the BKR6EIX, that's it, stock number 6418. It too has the correct 0.8mm gap.
The 1.1mm gap plug that I am using eventually caused my CAT to foul up and led to the check engine light. I just found out from my backup Toyota mechanic.
All Gen 2 1995 and 1996 owners take note.
I have not posted in a while, it's good to be back.
FYI, the gen 2 from 1995 to 1996 used a 0.8mm gap. The correct OEM plug for that is the NGK BKR6EP8, not the BKR6EP11 as many places state. The equivalent NGK Iridium plug is the BKR6EIX, that's it, stock number 6418. It too has the correct 0.8mm gap.
The 1.1mm gap plug that I am using eventually caused my CAT to foul up and led to the check engine light. I just found out from my backup Toyota mechanic.
All Gen 2 1995 and 1996 owners take note.
I have not posted in a while, it's good to be back.
Good info, thanks, im thinking about changing mine. Good to see you back.
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Thread Starter
Pole Position
Joined: Jan 2003
Posts: 393
Likes: 1
From: Florida
These five pages should provide all the information there is to know about spark plugs.
http://www.ngksparkplugs.com/techinf...31000&country=
http://www.ngksparkplugs.com/techinf...200&country=US
Truly awesome info.
SKPerformance - Iridium plugs are not going to change the performance from a platinum plug drastically, especially if your plats were in good working order. I am changing to Iridium because I have to change my incorrect ones anyway, the price of NGK Irid and plat is the same, and Irid has a change interval of 100k miles.
http://www.ngksparkplugs.com/techinf...31000&country=
http://www.ngksparkplugs.com/techinf...200&country=US
Truly awesome info.
SKPerformance - Iridium plugs are not going to change the performance from a platinum plug drastically, especially if your plats were in good working order. I am changing to Iridium because I have to change my incorrect ones anyway, the price of NGK Irid and plat is the same, and Irid has a change interval of 100k miles.
Last edited by ychachad; Jun 13, 2006 at 05:30 AM.
Driver School Candidate
Joined: Jun 2006
Posts: 7
Likes: 0
From: CA
well, the right iridium plug for the 95 ls 400 is the bkr6eix-11 / 3764. you can check the website at ngk.com and it will tell you the gap and everything. I have about 30 sets of these plugs for sale as well as the bkr5eix-11 and some others as well.
Thread Starter
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Joined: Jan 2003
Posts: 393
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From: Florida
First impressions after the new "correct gap" Iridium plugs:
1. Car has robust acceleration - looks like I found the 25 horses I was missing. I had long complained that my 92 had more power than my 95.
2. Car runs infinitely smoother. Again I had long complained that my 92 was smoother.
3. Tranny shudder has vanished. Completely.
4. Gas mileage is up. I got 28 mpg running on flat ground, no A/C, at a constant 70 mph. I had never gotten more than 26 mpg lately under similar conditions.
5. The damned "Check Engine" light has vanished for over 500 miles now!!! Used to be, the CE light came on in less than 50 miles of driving. The culprit was the passenger side Cat (from the OBD codes).
TAKE NOTE: All gen 2.0 owners make sure you have the proper gap plugs 0.8mm installed to eliminate some of the problems I have mentioned above.
1. Car has robust acceleration - looks like I found the 25 horses I was missing. I had long complained that my 92 had more power than my 95.
2. Car runs infinitely smoother. Again I had long complained that my 92 was smoother.
3. Tranny shudder has vanished. Completely.
4. Gas mileage is up. I got 28 mpg running on flat ground, no A/C, at a constant 70 mph. I had never gotten more than 26 mpg lately under similar conditions.
5. The damned "Check Engine" light has vanished for over 500 miles now!!! Used to be, the CE light came on in less than 50 miles of driving. The culprit was the passenger side Cat (from the OBD codes).
TAKE NOTE: All gen 2.0 owners make sure you have the proper gap plugs 0.8mm installed to eliminate some of the problems I have mentioned above.
Well, in the future, as long as the temperature of the plug is the same, you can always regap them. Get a $0.99 spark plug gap tool at any auto shop and regap them to the correct specs. be careful not to damage teh electrode tip and you're good to go.
