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Discussion Starter #1
got the bosch platinum ones in it, need to replace them and would rather not go with bosch again

what spark plugs can i use, having trouble finding information on this, searched this forum, not much of a mention about the plugs to use.

cheers!:rotate:
 

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There was a topic on this last weekend, check your car manual.
[edit]
turns out it has a confusing topic title.

Letholdus, The owners manual specifies all the fluids and plugs for all types of engines. The 3.2 requires BOSCH HR7MPP152 according to it.
 

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There are a number of spark plug choices for this engine in keeping with the physical characteristics.

1) Thread Length 25mm
2) Thread pitch 1.25mm
3) Thread diametre 14mm
4) Hex 16mm
5) Tapered/conical seat

Current Bosch literature for the HR7MPP302X for its application (3.2 JTS V6) specs a spark gap of 1.0mm. Alfa literature spec it at 1.1mm.

Choices - these plugs are equivalent heat range to factory (Bosch HR7MPP302X).

NGK PLTR6A-10g 1.0mm gap
NGK LTR6IX-11 1.1mm gap
NGK ILTR6E11 1.1mm gap

Denso ITV20TT 1.0mm gap


With regard to another thread of yours, changing spark plugs marginally improved cold behavior. I've learn't to allow the engine to warm up - reduction in rpm from fast idle to normal idle rpm. good to go!
 
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