Question about 2001 Mitsubishi Eclipse
1.0 - 1.1 mm (0.039 - 0.043 inch)
Posted on Jul 13, 2010
Generally speaking, 0.039-0.044 is a decent range for platinum or copper. Iridium fine-wire plugs generally should not be gapped by a novice since it could be easy to bend or damage the electrode. However, with some care, the IR plugs can be gapped down to around 0.032-0.034 if desired. The reality however is that Iridium plugs are great in terms of lifespan and consistency, but also (usually) the most expensive when compared to other popular choices. But from a realistic staindpoint, a quality platinum plug will perform very well and last quite a long time as well, for half the price. I would stay away from copper in this application (unless you are "racing" and plan on changing plugs all the time) because the ignition system is a little agressive for daily driving in terms of plug life, therefore copper, although it is the best conductor out of the bunch, will burn itself up a little too fast to be reliable for long-term use.
Posted on Mar 11, 2016
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