Spark Plug Question
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Spark Plug Question
I've always used NGK BR9EQ-14 spark plugs and it looks like I can still get them through RockAuto. All the auto parts stores only show the NGK BUR9EQ for our cars.
Has anyone used the NGK BUR9EQ? What is the difference?
Has anyone used the NGK BUR9EQ? What is the difference?
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Rotary Freak
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Good to know, thanks.
I will just stick with the stock plugs since I have no plans to go direct fire.
I've always used the BR9EQ-14 but it looks like RB and Mazdatrix say to use the BR8EQ-14. Should I try and find the BR8EQ-14 or stick with the easier to get BR9EQ-14?
I will just stick with the stock plugs since I have no plans to go direct fire.
I've always used the BR9EQ-14 but it looks like RB and Mazdatrix say to use the BR8EQ-14. Should I try and find the BR8EQ-14 or stick with the easier to get BR9EQ-14?
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the BU/BP/RC, etc refer to the plug design, there are a TON, but basically every car on the planet that isn't rotary takes a BP.
the R is for resistor, no R = no resistor
the number is the heat range, 9 is colder than 7. you want the stock heat range, unless you're modded or step on the gas a lot, then you want a colder one.
not sure about the EQ
if there is then a P or I its platinum, or iridium, if its blank its copper.
so a BUR7EQ is a copper, 7 heat range resistor surface discharge plug, it happens to fit the FC, the FD is a BUR7EQP.
the Rx8 uses an RC7 something something, and its much much better. it is a fine wire iridium plug, based on the race plug design. it is less shrouded than the other plugs, and it misfires less, AND it takes less ignition power to fire
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lol, i've had my Rx8 for more than 3 years and 20K miles, and i haven't changed the plugs yet, they last a long time
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