ericem Posted December 15, 2011 Share Posted December 15, 2011 Hey guys, I really want to do my spark plugs, but at the same time I feel it will make no change therefore I am being lazy. Just curious, those with over 60k miles who did plugs did you find any difference in performance? Maybe you guys will give me some incentive to do the plugs asap! Link to comment Share on other sites More sharing options...
king_j Posted December 15, 2011 Share Posted December 15, 2011 as maintenance, change them. Link to comment Share on other sites More sharing options...
GTTuner Posted December 15, 2011 Share Posted December 15, 2011 I noticed a smoother idle. Link to comment Share on other sites More sharing options...
shadowsports Posted December 15, 2011 Share Posted December 15, 2011 Hey guys, I really want to do my spark plugs, but at the same time I feel it will make no change therefore I am being lazy. Just curious, those with over 60k miles who did plugs did you find any difference in performance? Maybe you guys will give me some incentive to do the plugs asap! Get off thy lazy arse. A smoother idle and better gas mileage await you. Link to comment Share on other sites More sharing options...
Gire Posted December 15, 2011 Share Posted December 15, 2011 I just had my plugs changed by the dealer yesterday as part of the 96K KM service. The LGT manual indicates that 60K miles or 96K KMs is the right time to change them. Get er done. Link to comment Share on other sites More sharing options...
citka Posted December 15, 2011 Share Posted December 15, 2011 +5 HP each plug. Link to comment Share on other sites More sharing options...
Gire Posted December 15, 2011 Share Posted December 15, 2011 No kidding! New plugs coupled with my oil change and re-balanced wheels I instantly got 40 more HP yesterday!! Link to comment Share on other sites More sharing options...
ericem Posted December 15, 2011 Author Share Posted December 15, 2011 haha ok, tomorrow morning going to do them. Than going to pop in my panel filter and a infamous1 stage 1 tune Will also post a pic of how they look. Link to comment Share on other sites More sharing options...
AShoe Posted December 15, 2011 Share Posted December 15, 2011 I changed mine at about 70k miles and the ones that came out looked perfect. the electrode was barely worn and I noticed no difference in power or idle quality. Link to comment Share on other sites More sharing options...
citka Posted December 15, 2011 Share Posted December 15, 2011 I rolled 60k yesterday...ordered my plugs today. Will put them in when the motivation I ordered is delivered. Link to comment Share on other sites More sharing options...
Strizzy Posted December 15, 2011 Share Posted December 15, 2011 Have fun with the air pump on the driver's side... My bad luck build Link to comment Share on other sites More sharing options...
shadowsports Posted December 15, 2011 Share Posted December 15, 2011 Have fun with the air pump on the driver's side... Oh Ya! ericem... thats two 1 1/4 hose clamps and a 10mm bolt. The clamps are easy to pinch open with pliers. The front of the body comes off the back of the pump after removing (uncliping) a large wire harness from it's mount near the oil fill pipe. Anti-sieze on the plug threads... We'll be thinking of you... Seriously though... it's not so bad. Link to comment Share on other sites More sharing options...
Eville Rich Posted December 16, 2011 Share Posted December 16, 2011 If you do your plugs on schedule and in advance of problems showing up, you should notice little, if any, difference in performance. That's the idea behind preventative maintenance - keep stuff running like it should. I did my plugs at 60k miles and was pleased to see very little wear. And I was also happy to know that I'm good for the next 60k. That air pump is a bit of a pain. Frankly, doing plugs on these cars is a general pain. I'm glad it's only every 60k and that there's only four cylinders. Doing the plugs was a very intimate process on this car. We grew closer as a result. Eville Rich 2007 LGT Link to comment Share on other sites More sharing options...
Strizzy Posted December 16, 2011 Share Posted December 16, 2011 I thought Subaru changed the plug replacement interval for every 30k miles rather than 60k? My bad luck build Link to comment Share on other sites More sharing options...
Slickvic Posted December 16, 2011 Share Posted December 16, 2011 I thought Subaru changed the plug replacement interval for every 30k miles rather than 60k? Nope, it's still 60k. http://www.subaru.com/content/downloads/pdf/maintsched/2007SchedCA.pdf Link to comment Share on other sites More sharing options...
4runner1988 Posted December 16, 2011 Share Posted December 16, 2011 You should wait 60k more to change them, then you will feel a difference. I felt the same way you did, but I've only had my car for less 10k, (100k on it), Didn't trust the PO had done the plugs so I did them myself. Found out the PO did do them, but put the 2.5i plugs in, which are a good 1/2in shorter (combustion side) then the correct plugs. Put the new ones in, idles smoother and according to my ecu i'm getting 3 more mpg's. Now my clutch is slipping.. Link to comment Share on other sites More sharing options...
meier motor sports Posted December 16, 2011 Share Posted December 16, 2011 why dont you just wait till the car breaks down before changing them. that will save you time and money....... not! just change them! Link to comment Share on other sites More sharing options...
ericem Posted December 16, 2011 Author Share Posted December 16, 2011 I lied tomorrow I have work Maybe Sunday or Monday? So eager to do them non the less now. I noticed that air pump near the coils ugghh does it actually have to come out? Either way not a big deal. On a 07 I still need to tilt the motor a bit too right? Link to comment Share on other sites More sharing options...
ericem Posted December 18, 2011 Author Share Posted December 18, 2011 finally got around to it... The driver side plug closest to the firewall appears to be burning lean though. Any ideas ? New injectors ? Link to comment Share on other sites More sharing options...
CousinLarry Posted December 19, 2011 Share Posted December 19, 2011 I would leave the plugs in for as long as possible - wait till one or more fail and cause damage first. Link to comment Share on other sites More sharing options...
bmx045 Posted December 19, 2011 Share Posted December 19, 2011 I would leave the plugs in for as long as possible - wait till one or more fail and cause damage first. http://s3.amazonaws.com/kym-assets/photos/images/newsfeed/000/131/351/eb6.jpg?1307463786 Link to comment Share on other sites More sharing options...
citka Posted December 19, 2011 Share Posted December 19, 2011 Based on the picture, it does not look to be so lean that it's a problem (in my opinion anyway). Link to comment Share on other sites More sharing options...
Eville Rich Posted December 19, 2011 Share Posted December 19, 2011 Based on the pics, I think the spark plugs look pretty decent and don't indicate a problem. If you are concerned about a lean burn, I recommend doing some actual monitoring of the conditions (AFR, etc). I think the appearance of spark plugs are only reasonable as a confirmation of diagnosis if you already have a good indicator of a problem. I don't think they are good as a primary diagnosis tool. Eville Rich Link to comment Share on other sites More sharing options...
ericem Posted December 20, 2011 Author Share Posted December 20, 2011 thanks guys going to do some logging. Link to comment Share on other sites More sharing options...
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