Plug leads lifespan?
19 July 2007, 08:58 PM
#1
Plug leads lifespan?
I have an MY98 WRX that has done 66,000 miles. After changing the leads, oem for oem, there is a noticeable improvement in response. It seems smoother and accelerates better.
All I have done is regapped the plugs to 0.686mm (dont have a 0.7mm guage) and fitted new leads. The regap was minimal.
So how long do they last?
All I have done is regapped the plugs to 0.686mm (dont have a 0.7mm guage) and fitted new leads. The regap was minimal.
So how long do they last?
20 July 2007, 09:59 AM
#2
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In the US the plug leads at that age HAD to be guarenteed to 60K miles, and I believe were included in the 60K service.
Mine were duff when I looked at mine, were replaced with 'blue print' ones before I bought it, the blue prints have lasted less than 2 years, and yes mine has come alive with a set of replacement OE leads! (as well as NGK Iridiums at 0.7mm)
Platinum plugs have a higher KV requirement for the same gap, so its possible the regapping has helped, especially if your on Platinums still.
Simon
Mine were duff when I looked at mine, were replaced with 'blue print' ones before I bought it, the blue prints have lasted less than 2 years, and yes mine has come alive with a set of replacement OE leads! (as well as NGK Iridiums at 0.7mm)
Platinum plugs have a higher KV requirement for the same gap, so its possible the regapping has helped, especially if your on Platinums still.
Simon
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