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The mkiv Supra Owners Club

have you done a bpu if so what spark plugs


brettjones

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For those using BKR7EIX and IK22's, isn't it more cost effective to use copper plugs and swap them every 5-6k miles? I meant the iridiums normally retail for around £55, but only last 10-15k miles

 

Iridiums: £55 a set, 15k miles = 272 miles per £

Copper: £12 a set, 6k miles = 500 miles per £

 

I'm not suggesting you're wrong, just interested in why the iridiums are favoured by some despite costing almost twice as much per mile

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For those using BKR7EIX and IK22's, isn't it more cost effective to use copper plugs and swap them every 5-6k miles? I meant the iridiums normally retail for around £55, but only last 10-15k miles

 

Iridiums: £55 a set, 15k miles = 272 miles per £

Copper: £12 a set, 6k miles = 500 miles per £

 

I'm not suggesting you're wrong, just interested in why the iridiums are favoured by some despite costing almost twice as much per mile

 

Depends if your paying someone to do it or not? And if you can be arsed to change your plugs all the time. Iridiums "should" last 20,000 miles, thats what they quote anyway.

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