Quick Question about Spark Plugs
I'm trying to order a set of spark plugs but i'm getting 2 separate model numbers:
PZFR5F-11 PZFR6E-11 Which is the correct one? |
Originally Posted by ChineseGuyinthe415
(Post 12333368)
I'm trying to order a set of spark plugs but i'm getting 2 separate model numbers:
PZFR5F-11 PZFR6E-11 Which is the correct one? Then for NGK, there are platinum / OE style platinum / iridium / oe style iridium all at different price points. If you get the heat range and the gap correct, they will all work pretty well. (Data point : I use the ZFR6FIX-11 for my '01 CLS. 2 sets, 100,000 miles since.) |
I put IZFR6K-11 in my car a few weeks ago. The plugs that were already in the car were PZFR6E-11
P = Platinum I = Iridium |
I put NGK Iridium IX's a few months back.
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NGK Iridium IX's
Originally Posted by ANC297
(Post 12335611)
I put NGK Iridium IX's a few months back.
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Originally Posted by poisx7
(Post 12335863)
How good is this NGK Iridium IX's compared to the NGK laser Iridium.
I have used the Iridium IX's only because they are the most readily available in stores (and cheaper at about $6-7 a piece). The laser iridium / laser plat tend to cost more and have to special order or mail order. They all last 40-60k miles no problem under normal conditions. I doubt you will be able to tell "how good" a plug is beyond this. |
My car is an 03 and had laser platinums in them. IMO it's probably just a 6MT thing.
I put laser iridiums in mine because I guess I'm paranoid and wouldn't trust a $6.70 spark plug to last 7 years or 105k miles. |
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