2012 CR-V Spark Plugs?

7488 Views 13 Replies 7 Participants Last post by agentl074, Aug 23, 2019

RavenManiac

Discussion Starter · Apr 7, 2019 (Edited)

I just changed the spark plugs in my 2012 CR-V, which has close to 85,000 miles on it, with a new set of NGK's. The old spark plugs look to be in relatively good condition, except for the area around the ceramic part of the pkug. Please see the attached images.

Is the discoloration due to water intrusion or something else?

Spark plug Automotive ignition part Auto part Automotive engine part

Spark plug Auto part Automotive ignition part Automotive engine part Suspension part

Spark plug Auto part Automotive ignition part Automotive engine part

See less See more

Save

1 - 14 of 14 Posts

20CRVEX13

· #2 · Apr 7, 2019

IMHO those plugs look just about perfect. I think the discoloration around the ceramic is from the imperfect seal between the porcelain and the metallic part of the plug. Nothing to worry about IMO.

Save

RavenManiac

Discussion Starter · #3 · Apr 7, 2019

20CRVEX13 said:
IMHO those plugs look just about perfect. I think the discoloration around the ceramic is from the imperfect seal between the porcelain and the metallic part of the plug. Nothing to worry about IMO.

Yeah, I totally agree. I'm really impressed that an engine with 85,000 miles on it is burning so clean.

I change my oil regularly and rarely burn anything other than Shell gas. I wonder if that makes a difference.

Save

20CRVEX13

· #4 · Apr 7, 2019

They look a lot like the plugs that came out of my '02 V-6 after 100k miles when I had them changed at the 105k check up.
I wish my current '11 V-6 plugs looked that good, but, with the VCM system they don't.
I use and have been using Chevron gas for years now. I'm sure sticking with one brand helps and the oil changes don't hurt either. I hope our CR-V's plugs look that good when it comes time to change them. At the rate we drive that should be in another 5 yrs.

Save

yst

· #5 · Apr 10, 2019

Do not confuse the normal corona stain trace with a soot traces of gases breakthrough.

See less See more

Save

RavenManiac

Discussion Starter · #6 · Apr 11, 2019

I did not know that. Thanks for sharing this with me.

Save

fubarnow

· #7 · Apr 12, 2019

RavenManiac said:
I did not know that. Thanks for sharing this with me.

I watched some youtube videos where Denso Plugs had loose tops when pulled.
The only plug I'll put in my car is an NGK.

Save

20CRVEX13

· #8 · Apr 17, 2019

Thought you guys might like to see a 'bad' plug from my V-6 Accord.

Screw Auto part Automotive engine part Spark plug Macro photography

To say I'm disappointed in finding this is an understatement.

See less See more

Save

RavenManiac

Discussion Starter · #9 · Apr 18, 2019

Is that carbon build up? What does that mean?

Save

fubarnow

· #10 · Apr 18, 2019

I just pulled the plugs in my 06, 2.4 @180,000 miles.
They looked perfect--The plugs have 30K on them.
Only NGK for me.

Save

Wildcat

· #11 · Apr 22, 2019

I would have to look back a couple of years, but I could show the photo of the #$&@^* Bosch plug that destroyed our Civic's cylinder head. The ceramic insulator shattered inside the cylinder. I always considered Bosch to be avoided before that happened. (These came with the car when we bought it.) On both of our '09s, one of the first things I did was pull the plugs to be sure Bosch wasn't in these engines. I ended up replacing both sets with NGKs as they were due anyways.

20CRVEX13 said:
Thought you guys might like to see a 'bad' plug from my V-6 Accord.

View attachment 129819

To say I'm disappointed in finding this is an understatement.

That's not from an oil leak, is it?

Save

BDub

· #12 · Apr 22, 2019

RavenManiac said:
Is that carbon build up? What does that mean?

The ceramic insulator in the center of 20CRVEX13's plug is cracked. The other deposits could be from burning a little oil. The brown ring on your plugs is 100% normal.

Save

20CRVEX13

· #13 · Apr 28, 2019

The problem with that plug I pictured is as BDub says, a cracked insulator on the center electrode.
That plug is #3 from my '11 V-6 which has the VCM engine in it. Basically runs on 3 cylinders when in ECO mode.
New plugs have it running great again. I'll have to watch it more closely than before as I'm used to Honda's going 100k miles on a set of plugs before they need replacing. This set has less than 45k on them. The Accord forum says I should disable the VCM which would get rid of the ECO mode, but I like the gas mileage I'm able to get out of the car with in enabled. If it means I have to keep an eye on the plugs so be it.
My computer said I was able to get 30 mpg while doing a 2.5 hour drive at an @ speed of 60 mph on my last trip north. I haven't 'run the numbers' but they've been pretty close to the same when I do, so I'm happy to rely on the computer.
The #3 plug is the one that is shut down the most often in the V-6 VCM program so it's no surprise really that it's the worst of the bunch.

See less See more

Save

agentl074

· #14 · Aug 23, 2019

RavenManiac said:
Yeah, I totally agree. I'm really impressed that an engine with 85,000 miles on it is burning so clean. I change my oil regularly and rarely burn anything other than Shell gas. I wonder if that makes a difference.

Those look clean for 85k. Top tier fuels really do make a difference!

Save

1 - 14 of 14 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month