Long term report on spark plugs

[ecotourist]

I used NGK BPR 5EY plugs on my (then new) '81 Celica. They were the original plugs and I replaced like for like. That Celica ran great and the plugs came out looking great too.

But maybe times have changed.

I don't buy anything from China either, unless I have no other choice. That's just me.

 

[dwendt44]

Removeable tips can be tightened with a pliers and a socket.

My 2¢

 

[MParr]

Removeable tips can be tightened with a pliers and a socket.

My 2¢

True enough. The ones that I pulled out were good and tight when I installed them. When I pulled them, one was loose. This was what was causing the misfire. This is the mower and small engine section of the forum. Mowers take a heck of beating that over the road vehicles don’t. So, the terminal nuts can become loose. To avoid this, it’s best to buy plugs with fixed terminal ends for mowers.

 

[MParr]

True enough. The ones that I pulled out were good and tight when I installed them. When I pulled them, one was loose. This was what was causing the misfire. This is the mower and small engine section of the forum. Mowers take a heck of beating that over the road vehicles don’t. So, the terminal nuts can become loose. To avoid this, it’s best to buy plugs with fixed terminal ends for mowers.

I could have pinched the terminal nut before installation. I’ve never had this happen before. Again, I’ll avoid this problem by purchasing plugs with fixed terminal ends.

 

[Ride_Red]

I'm still using the original 15yr old NGK plug on my mower (GC160). I bought a NGK replacement 5 years ago, but the mower runs so good I haven't put it in yet. I sharpen the blade and change the oil. That's pretty much it for 15 years.

 

[slybunda]

In my experience nothing beats a denso plug.