Pretty sure my manual says every 160k KM, but not sure what kind of plugs they are.

Sent from CSIS surveillance beaver #238

 

i believe the manual says 100k miles. I usually do them in my cars every 60k miles.

 

Good info, thanks!


Sent from my iPhone using Tapatalk

 

I changed mine at 40k miles, plugs came out with gaps ranging from .039 and .045. I went back in with NGK iridiums.

 

100k

 

Is there a time interval since for me to get to 100k miles will take another 10 years?

 

You do not want a spark plug baked in there... I would 5 years is a good number. Spark plugs are cheap and it could in theory give you a better MPG.

 

Thanks I'll replace them with factory Autolites...

 

should not be more then 60.000km, or 45.000miles

 

Ahh, the old "what mileage should spark plugs be replaced?" debate -- as entertaining as "what mileage should motor oil be replaced?" debate.

 

It's the internet, isn't everything a debate? [neener]

For spark plugs, ever 100,000 miles at a maximum is my metric, and I wouldn't do them before they have 40,000 miles on them unless you have reason to believe they've gone bad.

It's a steal plug into an aluminum block, so a little lubricant is a good thing, just don't go overboard with it, or get any on the electrode end of the plug.

As for oil, depends on a lot of things, driving style, type of oil, etc. But for the MK3 Focus more frequently than 5,000 miles for the NA engine is just wasting money in my opinion (if you're running full synthetic which I believe they come from the factory filled with). And I change the oil once a year regardless of if I've hit the mileage or not. Newer oils resist break down a lot better than old conventional oil does, but if you're driving that little a year odds are you're either not touching the car at all, or doing a lot of little trips, and that's hard on the engine. New oil is cheap insurance.

 

IMHO the winner was one who claimed less than 2 tenths to work, and a 3k OCI by OLM.

 

Pull 'em, Check 'em, Lube 'em and you're good to go without worries.

 

A spark plug can be regapped easy.
I would suggest CHECKING them and see what they look like at 25,000 miles.
Regap them if they are good with a widened gap. and then decide to replace at 50,000 or not when checking them again.
This is for the home putz..
I would not PAY someone to look at my plugs at 25,000. LOL/
If I was paying, I would just replace them at 50,000.miles.
At 100,000 the plugs are really worn out. The electrode will be pretty well eaten away.. and the gap? hah hah...
If you are cheap though, and just drive the economy car.. 100,000 is fine.
If you like to think you are passionate about your car... 50,000 is when you should change plugs. (and check the gap at 25,000 miles)

As for brands of plugs... This is the same sort of question as oil brands...
If he plug fits and is the right heat range,....

Wrong heat range is like wrong viscosity oil...

 

...
If the plug fits and is the right heat range,....

Wrong heat range is like wrong viscosity oil...

Heat range? Is it possible to even find a plug in the wrong heat range?

 

Yes, and many other mismatches as well.

Heck, just being able to screw it into the hole doesn't mean it's even the right LENGTH to fit!

(And your dry humor dragged me in again....)

 

Well no not this time. I can't say I've seen, at least for the 2.0 GDI engines any mention of spark plug heat range. Motorcraft, Autolite, ACDelco, NGK, Champion, odd-ball 15 electrode gimmick plugs, who else? No mention of heat range. Be it platinum, iridium, rhodium, palladium, copper, aluminum, gold, silver, nickel, etc. core / electrode, no mention of heat range.

 

I have 92,000 miles, original plugs. No problems. Fuel economy is still like new. 2012 Focus.

 

100,000 Miles

I have 92,000 miles, original plugs. No problems. Fuel economy is still like new. 2012 Focus.

 

I have 92,000 miles, original plugs. No problems. Fuel economy is still like new. 2012 Focus.

Ok welp have about 8K till they are due.


100K then 150K per the owners manual.

 

Changed out the plugs at 98K miles and 5.5yrs old.

Very simple, 20-minute job. Hardest part was cleaning the engine block of all crud/dust/sand. Canned air if you don't have a compressor worked fine for us.

Used Factory Ford OEM plugs and a $1 pack of anti-seize. 3/8" ratchet, 6" extension, and a standard cushioned spark plug socket.

 

Did my plug change at 97,000 kms last month. Car seems a little smoother, and seems to accelerate without bogging. Curious to drive it in the summer with AC on.

 

I too have been considering switching mine lately. I'm at about 67k miles, so it seems an alright time to take care of it. I haven't been able to find much info about recommended or suggested plugs for the 2.0 NA. Anyone have mentionable experiences with any specifically?

 

The OEM from Ford are very good and $35 for all four.

 

If anyone wanted to know what it takes to change spark plugs on our 2.0 NA. Here is a good video.

https://www.youtube.com/watch?v=8rY8aad69ds

.

 

^^^^^^ Good video

Well,I said I was going to do them last year but now with just under 40k on the plugs and just about 6 years old I figure I'll do mine before I detail the whole car in May since it's such an easy job.

 

Guess this is a good thread, NGK laser iridiums or Denso twin tip iridiums, I'm currently using the NGKs, but if the Densos will be a little better, I'll go that route and put the NGKs in the '12.

 

On my 2012 I swapped them at about 66 months and just shy of 80,000 miles. I guess it was mostly because it seemed like that was long enough. They still looked good, replaced them with NGKs. I guess when time comes to replace them on my 2017, I'll be buying THREE spark plugs. Do they even have 3-packs?