Spark Plug and Oil Change question
#1
Spark Plug and Oil Change question
Hi all, long time member here but havent been on the site in a long time.
Car is a 2007 Nissan Murano SE (VQ35DE) @ 181,000KM
Just wondering how long can i keep the original spark plugs in?
I know they are supposed to be changed at 168,000KM but i feel and see no difference in the way the car performs. I know this service will cost me about $400 to get done at a reputable shop and right now is not the best time to spend this kind of money for me. I pulled
Also, i see in the service manual Nissan recommends 7500mi oil change intervals. I am running on the bigger OEM filter with Pennzoil Platinum 5W-30, does this sound OK for this interval? (car does burn some oil and i add about a litle every 5,000KM or so).
Thanks and sorry if this is answered somewhere here already.
Car is a 2007 Nissan Murano SE (VQ35DE) @ 181,000KM
Just wondering how long can i keep the original spark plugs in?
I know they are supposed to be changed at 168,000KM but i feel and see no difference in the way the car performs. I know this service will cost me about $400 to get done at a reputable shop and right now is not the best time to spend this kind of money for me. I pulled
Also, i see in the service manual Nissan recommends 7500mi oil change intervals. I am running on the bigger OEM filter with Pennzoil Platinum 5W-30, does this sound OK for this interval? (car does burn some oil and i add about a litle every 5,000KM or so).
Thanks and sorry if this is answered somewhere here already.
#2
I would just change them out for some more NGK platinums as soon as I could.
4,000-5,000 miles is typical between oil changes with full synthetic; how that converts in km, I'm not sure off the top of my head.
I'm glad you stayed with Nissan, and just know that we want you to work on your own car if you can.
4,000-5,000 miles is typical between oil changes with full synthetic; how that converts in km, I'm not sure off the top of my head.
I'm glad you stayed with Nissan, and just know that we want you to work on your own car if you can.
![Smilie](https://maxima.org/forums/images/smilies/smile.gif)
#4
Thanks for the reply,
I just saw i hit poat midsentence. I meant to add that i did pull the three front plugs last year and they looked fine. So you suggest i get the plugs changed out right away?
I willl stick to my oci at 12,000km (7500mi)
I just saw i hit poat midsentence. I meant to add that i did pull the three front plugs last year and they looked fine. So you suggest i get the plugs changed out right away?
I willl stick to my oci at 12,000km (7500mi)
#5
Plugs should be done every 100,000 miles. No matter how good engine is running the plugs will have normal wear and need to be replaced. Use same plugs Nissan put in at the factory.
Synthetic oil can be a longer drain than mineral oil. At least 7000 miles. Use Mobil 1 or Castrol Edge. If you want to pay you can go 10,000 with Am-Soil just change filter halfway though interval.
Synthetic oil can be a longer drain than mineral oil. At least 7000 miles. Use Mobil 1 or Castrol Edge. If you want to pay you can go 10,000 with Am-Soil just change filter halfway though interval.
#7
Its expensive to change the plugs. I was quoted $385+13% tax here in Toronto. Thats for oem lazer platinumsand the pcv valve. Gasket is steel and is reusable. So thats why i asked.
I already change the oil at 7500mi intervals, nikv69, please see my original post.
Thanks.
I already change the oil at 7500mi intervals, nikv69, please see my original post.
Thanks.
#8
Change your plugs as soon as u can. Modern computerized cars can compensate for tired plugs and u don't feel it. Other parts of the car, like the ignition coils, work harder, reducing their lifespan.
Also, even though your plugs looked fine, how did they look compared to a new one?
The job looks to be expensive because you probably have to remove the intake manifold. You should take advantage and replace any exposed parts like the manifold gaskets, because once things are back together, you wont have to change those platinum spark plugs again until the next 100,000 miles. In your case that would be when your odometer hits 342,000 KM.
Also, even though your plugs looked fine, how did they look compared to a new one?
The job looks to be expensive because you probably have to remove the intake manifold. You should take advantage and replace any exposed parts like the manifold gaskets, because once things are back together, you wont have to change those platinum spark plugs again until the next 100,000 miles. In your case that would be when your odometer hits 342,000 KM.
Last edited by dwapenyi; 01-22-2014 at 09:28 AM.
#9
Sounds like im going to go ahead and get the plugs changed out;
Dealer is all over the place on their recommendations but the break down is like this:
3 huors labour = $354
Lazer Plat plug = $17.85/EA (x6 = $107.10)
Steel Gasket = $53.54
PCV Valve = $16.41/EA
All this plus 13% tax and it comes out to $600 even.
Anything else to replace while there? throttle body clean and relearn?
Dealer told me they dont take the TB off for this somehow LOL eventhoug the FSM tells you to do it...so they charge 3 hours labor by the book and then go ahead and dont work by the book and take less time to do it but charge you the same, this makes sense to anyone?
Dealer is all over the place on their recommendations but the break down is like this:
3 huors labour = $354
Lazer Plat plug = $17.85/EA (x6 = $107.10)
Steel Gasket = $53.54
PCV Valve = $16.41/EA
All this plus 13% tax and it comes out to $600 even.
Anything else to replace while there? throttle body clean and relearn?
Dealer told me they dont take the TB off for this somehow LOL eventhoug the FSM tells you to do it...so they charge 3 hours labor by the book and then go ahead and dont work by the book and take less time to do it but charge you the same, this makes sense to anyone?
#10
Sounds like im going to go ahead and get the plugs changed out;
Dealer is all over the place on their recommendations but the break down is like this:
3 huors labour = $354
Lazer Plat plug = $17.85/EA (x6 = $107.10)
Steel Gasket = $53.54
PCV Valve = $16.41/EA
All this plus 13% tax and it comes out to $600 even.
Anything else to replace while there? throttle body clean and relearn?
Dealer told me they dont take the TB off for this somehow LOL eventhoug the FSM tells you to do it...so they charge 3 hours labor by the book and then go ahead and dont work by the book and take less time to do it but charge you the same, this makes sense to anyone?
Dealer is all over the place on their recommendations but the break down is like this:
3 huors labour = $354
Lazer Plat plug = $17.85/EA (x6 = $107.10)
Steel Gasket = $53.54
PCV Valve = $16.41/EA
All this plus 13% tax and it comes out to $600 even.
Anything else to replace while there? throttle body clean and relearn?
Dealer told me they dont take the TB off for this somehow LOL eventhoug the FSM tells you to do it...so they charge 3 hours labor by the book and then go ahead and dont work by the book and take less time to do it but charge you the same, this makes sense to anyone?
Any other place will probably charge you close to that because it's labor intensive but IMO plugs have to be done every 100k. I do mine every 90K.
#11
Follow this thread and you can do it by yourself. It's not that hard just make sure you have enough time in the world in bright sunny day unless you have your own heated garage.
http://forums.maxima.org/6th-generat...ement-diy.html
http://forums.maxima.org/6th-generat...ement-diy.html
#13
Its expensive to change the plugs. I was quoted $385+13% tax here in Toronto. Thats for oem lazer platinumsand the pcv valve. Gasket is steel and is reusable. So thats why i asked.
I already change the oil at 7500mi intervals, nikv69, please see my original post.
Thanks.
I already change the oil at 7500mi intervals, nikv69, please see my original post.
Thanks.
#14
You don't have to mess with platinum plugs more than once every 100K. Install OEM grade. OEM's are NGK brand, but don't sweat it, any major brand platinum plug will do just fine, just make sure it's platinum plug. You can pick up all 6 for about 60 bucks on ebay with no tax and no shipping.
And don't forget to change valve cover gaskets and manifold gasket since you are already there with manifold off.
And don't forget to change valve cover gaskets and manifold gasket since you are already there with manifold off.
#15
#16
So there is another gasket aside from the one on the manifold? I guess on the throttle body/intake?
I am planning to use dealer plugs. I looked online (autopartsway.ca) and the cost was the same as the dealer.
I am planning to use dealer plugs. I looked online (autopartsway.ca) and the cost was the same as the dealer.
#17
So there is another gasket aside from the one on the manifold? I guess on the throttle body/intake?
I am planning to use dealer plugs. I looked online (autopartsway.ca) and the cost was the same as the dealer.
I am planning to use dealer plugs. I looked online (autopartsway.ca) and the cost was the same as the dealer.
#18
So here is the parts list and some more questions;
Gasket 1 - $7.41/EA
http://www.autopartsway.ca/PartDetai.../pagenum1/tabS
Gasket 2 - $22.01
http://www.autopartsway.ca/PartDetai.../pagenum1/tabS
Are these two gaskets steel? should i just get the more expensive, but right ones from Nissan?
Also, the PCV valve has a rubber grommet, shuold i get that replaced as well?
Thanks.
Gasket 1 - $7.41/EA
http://www.autopartsway.ca/PartDetai.../pagenum1/tabS
Gasket 2 - $22.01
http://www.autopartsway.ca/PartDetai.../pagenum1/tabS
Are these two gaskets steel? should i just get the more expensive, but right ones from Nissan?
Also, the PCV valve has a rubber grommet, shuold i get that replaced as well?
Thanks.
#19
Valve cover gaskets tend to leak over time. You don't have to change them, but it is highly recommended since you already have manifold off to prevent aforementioned leaks in the future and taking manifold off again. There is also O2 sensor that is very difficult to access otherwise, change O2 as well.
Plugs.. go with NGK if you really want, and it is actually recommended going with a "colder" plug if you hear some ping on acceleration.
Careful with what you read on these forum, a lot of newbies and wanna-be experts just can't stop typing.
Plugs.. go with NGK if you really want, and it is actually recommended going with a "colder" plug if you hear some ping on acceleration.
Careful with what you read on these forum, a lot of newbies and wanna-be experts just can't stop typing.
#20
Valve cover gaskets tend to leak over time. You don't have to change them, but it is highly recommended since you already have manifold off to prevent aforementioned leaks in the future and taking manifold off again. There is also O2 sensor that is very difficult to access otherwise, change O2 as well.
Plugs.. go with NGK if you really want, and it is actually recommended going with a "colder" plug if you hear some ping on acceleration.
Careful with what you read on these forum, a lot of newbies and wanna-be experts just can't stop typing.
Plugs.. go with NGK if you really want, and it is actually recommended going with a "colder" plug if you hear some ping on acceleration.
Careful with what you read on these forum, a lot of newbies and wanna-be experts just can't stop typing.
#21
I agree.....if you nervous about removing wiper blades or the plastic cover then please seek professional to do this job.
#22
Got the car back from the shop last night and wow what a difference! Car is way more responsive, starts better after sitting in -20C degree weather all night, smoother and more powerful.
The OEM plugs were definitely worn out as the gap grew huge, no oil on them so thats great (mechanic noted that oil consumption could have been caused by leaking seals at the plugs but it wasnt). Replaced the PCV valve with its grommet at the same time, UIM gasket, air filter, Castrol Syntec with Titanium 5W-30 and OEM filter (Larger version) with drain plug washer. Glad i got this done and worth the money as i used all oem parts. Even did an emissions test as i needed it for registration...
My PCV valve was clogged so i hope this either fixes or lowers the oil consumtion, it wasnt disasterous but the car did burn oil.
People, replace the PCV valve any time you do the plugs!!! Thanks for the posts...
The OEM plugs were definitely worn out as the gap grew huge, no oil on them so thats great (mechanic noted that oil consumption could have been caused by leaking seals at the plugs but it wasnt). Replaced the PCV valve with its grommet at the same time, UIM gasket, air filter, Castrol Syntec with Titanium 5W-30 and OEM filter (Larger version) with drain plug washer. Glad i got this done and worth the money as i used all oem parts. Even did an emissions test as i needed it for registration...
My PCV valve was clogged so i hope this either fixes or lowers the oil consumtion, it wasnt disasterous but the car did burn oil.
People, replace the PCV valve any time you do the plugs!!! Thanks for the posts...
Thread
Thread Starter
Forum
Replies
Last Post
MatthewsMaxima
7th Generation Maxima (2009-2015)
12
09-11-2015 03:21 AM
maxinout93
5th Generation Maxima (2000-2003)
3
08-20-2015 02:17 AM
1992maximase30
4th Generation Maxima (1995-1999)
3
08-05-2015 09:27 PM