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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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spark plug electrode colourViews : 688 Replies : 0Users Viewing This Thread : |
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Feb 5th, 2008, 16:46 | #1 |
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Last Online: Oct 19th, 2009 18:34
Join Date: Nov 2007
Location: Leeds
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spark plug electrode colour
Hi,
I've just replaced my plugs in the T4 with Volvo plugs. The NGK PFR6B's that came out of it seemed to be a bit grey/white on the outer electrode. Having dug out the Haynes, apparently this could mean lean mixture. I only use super unleaded/optimax etc - is there anything I need to do to lean the mix up a bit....or am I worrying unnecessarily? BTW, the NGK PFR6B plugs that I took out are identical in every way to the Volvo plugs, even down to the weird looking middle electrode. Cheers Jay |
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