Goni C63

Looking to change spark plugs and I see that these have a good review BRISK LGS need your input please!thank you and I have 70k + miles now never change them!

tfthach13

Um...correct me if I'm wrong, but aren't Brisk spark plugs supposed to be only used for cars with forced-induction? i.e. supercharged engines.

I thought I read somewhere that cold Brisk plugs aren't suitable for a NA engine.

I would stay with OEM spark plugs just to be safe.

Goni C63

I mean I search it on the forum and these were all over lol but I did google it and great reviews on regular cars mustangs,corvettes test on suv's that's why not sure what's the best spark plug for our car not being S/C

Merc63

Of course you can use brisk plugs. Weistec has them, give them a call or email your order in, just tell them your stock and they will give you the correct temperature plugs.

Brisk makes all different temp plugs, they are not just for blower cars.

Goni C63

thank you buddy I appreciate it!

jvanbrecht

There is nothing wrong with the stock NGK plugs. Honestly, unless you are independently wealthy, there is no real reason to go with the more expensive plugs.

Jons95c36amg

The service manual says 80k miles is good for factory plugs.

roadtalontsi

its actually 60k on 63 n/a motors

Jons95c36amg

Wrong. Engine 275 is 60k miles for plugs.

roadtalontsi

they revised the 63 n/a motors in the later years to 60k starting with 2010. They just dont like to update maint. sheets which would be admitting they were wrong. 272/273 motors started at 100k like the dual spark plug 113/112s motors and worked there way down to 68k miles as they ended production seeing that the plugs just dont last that long. you are correct about 275s being 60k though.

I can email you the sheet if you'd like.

Goni C63

So I guess NGK Is the way to go! What does our cars comes with what brand of plugs anyway? So getting BRISK is waiste of money?

Mort

As roadtalontsi stated my 2010 C63 Service Booklet says 100000 KM (62500 miles) or 4 years for plugs. Not sure why MB puts years on everything because I don't think age is much of a factor in the life of a spark plug. Anyway I will ignore the age suggestion in this instance.

Goni, for my 2010 the OEM plug is listed as a NGK ILZKAR 7A 10. So NGK is the stock plug. Not familiar with Brisk plugs but you can get by with the stock plugs at least until you have a SC or a least LT headers that require a colder plug. After all you have done well on the stock plugs for over 70K miles. NGK are good plugs.

roadtalontsi

ngk does make great spark plugs. Although I would go to a step colder even if you aren't modded if you regularly use the car as it was intended. The factory plugs are fine but are designed to work over a very wide variety of temps/driving styles. Alot of amg owners ***** foot around and dont even drive far enough to reach operating temps on a regular basis. If this is you then do not bother with anything other than stock - like that guy who's never rev'd past 4krpm lol. The time has more to do with preventing corrosion and idle time. for instance 60k high way miles maybe equal to or less than 4yrs of regular rush hour traffic at a fraction of the mileage.

tfthach13

Hm..interesting. So in the less than 2 years, I've put over 40k miles on my C63 since it's my daily driver. Would you recommend that I switch to a colder plug? I'm bone-stock with Weistec dry filters, charcoals in. I'm planning on a future Weistec ECU upgrade as well. And I drive it in all kinds of conditions, ranging from bumper-to-bumper crawling traffic to high speeds of 80+ mph (on empty roads of course).

Goni C63

Friend of mine just told me that he uses NGK R for his c63 and he is FBO and im only cat less completely and i do drive it hard so I think then since he is using NGK R I should be good then is well but I just wanted to know is well about BRISK plugs because MUSTANGS & CORVETTES owners they use them and they love them

Critter

@Roadalontsi, see how you remember the finer points LOL, I happen to be that guy, but now have seen higher RPMs, wheel spin is an issue though, lots of it ha ha . For the guys wanting to run colder plugs, one should remove all the plugs from the engine, place them in order left/right bank and look at the color and deposits on the porcelain tip as seen on many plug charts, then and only then should one drop a range if the color of the tip shows a range drop would benefit. If the tip is white/light brown shading and no deposits then all is well, if the plug show signs of heat as pictures will show then yes drop down the range. Some of you guys just like to mess with something that really should be left alone. If you get 60K from a set of plugs why would you want to try something else, but this is from a guy who has had minimal issues with the 63 just one AC compressor that failed, no cels, no dealer drama, just fine automobiles all of there lives, so far. Oh Yah sun roof fix. Factory NGK removed and now replaced with NGK Iridiums, runs like a dream. Now stored for the winter, aluminum and salt are not friends in this country.

roadtalontsi

It's more of an aggressive level. If you regularly see 10mpg, or less and it's not from rush hour traffic/stop lights or drive like a 16yr old it'd be a good idea. But as mentioned above, the stockers do work just fine. You're not going to notice a power increase or anything like that so set your expectations low other than your motor being happier. chances of getting knock/detonation are lessened as well. On a modded motor that gets used the way it should regularly i'd highly consider it.

LOL at Critter. Im glad to hear you're exercising the beast a little, no point on being on steroids and never working out ya know. checking plugs is usually used more for air fuel ratio but is only accurate if shut down precisely at the end of the pass. or check for signs of detontation.

tfthach13

Very helpful. Thanks for all the info!

Critter

Bottom line is that a visual inspection of your plugs will reveal whether or not you need to adjust the heat range of the plugs. Just because you think you need a colder range is not always true. If you run between 5-7K RPM on a regular day trip then yes you may need to reduce the heat range if you spend more time driving with the rest of the locals then probably not. If you engine loves to use oil then the colder plug will foul quicker and lead to misfires as the deposits are not burned off.
As far as exercising the beast, you do not have to **** on all the trees when you are the top dog in the neighbourhood, most times things work out by you just showing up.
The wife is a stout proponent on you do not have to show what you got when you know you got it. The CLK63CAB is hers.

MJ50

i think stock plugs will be fine...
just change plug wires altogether...

Critter

No plug wires, we have coil on plug setup.

roadtalontsi

thank god for that. benz is proud of there wires or suppressors. 40-70$ each wtf.

Goni C63

Thanx for all the help I'll go again with NGK R Since recommend from friend of mine he is running same plugs! Need to refresh her since 70k on stock plugs