Re: Yea,would be good time to change plugs too..which ones? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Yea,would be good time to change plugs too..which ones?
Posted by MO [Email] (more from MO) on Sat, 15 May 2004 20:40:40
In Reply to: Re: Yea,would be good time to change plugs too..which ones?, JohnInAtl, Thu, 13 May 2004 13:20:44
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I don't think he means which area of the car. I believe he's asking which type of plugs.
Two options: NGK BCPR6ES11 and NGK BCPR7ES11. The 6's run hotter, which means they burn off deposits quicker. If you drive short trips for the most part, your plugs might not get as hot as if you drive longer trips with highway miles. So for short trips, 6's are recommended. If you do a lot of highway driving, 7's may hold up better and be the better choice in the long run. The majority of my trips are to and from work (5.2 miles each way) so I run 6's.
Incidentally, I couldn't find the BCPR6ES11, so I bought BCPRES. The difference is that the 11s are gapped too big and the 6ES are too small. Either way, regap to something between .035 and .037. I believe the spec range is .035 to .044 inches (.044 inches is 1.1mm, hence the 11 at the end of the model number). Gap to the small end of the range, as the gap will grow as the spark plugs wear. Re-check and re-gap or replace every 10k.
Matt
'99 base
posted by 24.128.4...
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