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17-02-2011, 10:06 AM
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Au Falcon = Mr Reliable
Join Date: Sep 2009
Location: North West Slopes & Plains NSW
Posts: 4,076
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G'day guys, after inspecting my spark plugs i believe they're a bit hot for my au1 4.0, they're slightly whitish grey in colour. Ive been running bosch wr9lcx plugs for a while and i want to change to a spark plug thats 1 heat range colder. Every component that could cause it to run lean are in good condition (maybe o2 sensor is a bit old), it does'nt ping and it runs cleanly to redline no problems.
Any suggestions or some good advice would be greatly appreciated! Ps-Ive been searching but cant get the right info i'm looking for. cheers,Maka |
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Colder spark plugs for Au1 4.0?
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