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Discussion Starter · #1 ·
Well, I know it is best to use

Well, I know it is best to use BP6ES NGK plugs but I do lots of city driving, spot and go. Do you think 5s are too hot or maybe ok. Plus my local parts shop has them in stock. Just a thought.
 
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Discussion Starter · #2 ·
They'll be ok.

But jus


They'll be ok.

But just for general reference, Fuel Injected engines don't need heat range changes to prevent fouling or start up issues. With the advent of FI, engines were capable of running within such a close range of fuel mixture that plug fouling was eliminated in properly functioning systems.
 
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