I replaced plugs on two of our other cars recently ... figured I might as well do the Honda since the plugs have not been replaced for 4-5 years (by the prior owner) and I've never looked at them.

What plugs are recommended for the F22B1 VTEC engine?

This is a college car not driven lightly, so maybe 5-6k miles per year. I don't mind changing plugs every few years or so, since I do it myself it's only the cost of the plugs. I am more concerned about getting something that will perform well on a high mileage engine.

I use Chevron gas exclusively so I expect the combustion chambers to remain relatively clean. Penzoil dino 5W-30 motor oil as well.

Any plug recommendations here? I think the choice is between Platinum and iridium, but there are some Platinum options that I am not up to speed on.

Thanks. John

 

NGK V-Power spark plugs.

NGK: ZFR5F-11

 

Okay, for a little over two bucks each I guess you can't lose.

I see this is the same plug that is referenced in the original manuals ... so platinum or iridium plugs are not of any help then?

Thanks. John

 

Platinum and iridium have a longer service life, not really a performance difference. The plugs recommended in the owner and service manual are very good plugs.

 

Okay, I picked up a set of NGK V-power for $2.29 each plus tax. Popped them in this afternoon. The old ones look pretty good for 4.5 years and 40k miles with a light dusty brown/grey coating on the tip, and a bit of black carbon on the end of the threads. One of the old plugs was gapped too large -- the new ones are all gapped just right. The spark plug tubes were clean, but I still blew and vacuumed them out a few times while removing the old plugs.

This engine was really easy to change plugs on since the plugs lean towards the front of the car and there is no engine cover or ignition coils to remove.

 

For most honda Toyota acura and so on economic cars [not performance cars] NGK V's are OEM. It's standard on a lot of cars and work great. I had the iridium or whatever before and no real difference except they do not do well with cold whether starting even here in California where on average it never gets below 45 in the winter.