what are the stock spark plugs

abe98gt · Post by **abe98gt** » Mon Jul 21, 2003 5:23 pm

What are the stock spark plugs, and how long is the recommended interval before changing?I assume the plugs for base Vibe's and GT's are different, so if you know the info, post it up, it would be a nice faq thread (I couldn't find any on search). Thanks.

NovaResource · Post by **NovaResource** » Mon Jul 21, 2003 9:39 pm

Straight from the owners manual:Page 6-78:Base = DENSO SK16R11, NGK IFR5A11 or GM Part No. 94859448; Gap: 0.043 inch (1.1 mm)GT = DENSO SK20R11, NGK IFR6A11 or GM Part No. 88969637; Gap: 0.043 inch (1.1 mm)*Your engine is fitted with iridium-tipped spark plugs. Use only iridium-tipped spark plugs for better engine performance.Page 7-6:Short Trip/City Intervals:Every 120,000 Miles (200 000 km): Spark Plug Replacement.Page 7-7:Long Trip/Highway Intervals:Every 120,000 Miles (200 000 km): Spark Plug Replacement.

abe98gt · Post by **abe98gt** » Tue Jul 22, 2003 1:31 am

Thanks Nova!

dmitri · Post by **dmitri** » Tue Jul 22, 2003 2:42 am

what u think about gapping them more?

NovaResource · Post by **NovaResource** » Tue Jul 22, 2003 2:56 am

I wouldn't. I've never seen a need for a gap larger than .045". The higher the compression the harder it is to create a spark. Making the gap larger also makes it harder for the ignition system to create a spark.

what are the stock spark plugs

what are the stock spark plugs

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