atbsuby413 Posted December 24, 2010 Share Posted December 24, 2010 I know I am over on an oil change about 7,000 miles, I checked my oil it was way low and no light came on, no leaks from anywhere and have engine knocking sound...added oil to bring level up...still making sound but not as loud... Link to comment Share on other sites More sharing options...
LGT For ME Posted December 25, 2010 Share Posted December 25, 2010 I'll let the more experienced guys comment more, but long oil change intervals and the turbo dont mix Link to comment Share on other sites More sharing options...
atbsuby413 Posted December 25, 2010 Author Share Posted December 25, 2010 07 Legacy 2.5i so no turbo...I wish! 38K miles i was driving slightly hard for a few minutes and then the noise happened. I thought it was my heat shields..gonna double check that in the morning, i don't think its the shields, the sound happens in 1st,2nd and 3rd gear and when the foot is on the Accelerator.... Link to comment Share on other sites More sharing options...
I Donated thefultonhow Posted December 25, 2010 I Donated Share Posted December 25, 2010 I wouldn't be surprised if you are screwed. How much oil did you add to top it off? The oil light on our cars is a low pressure light, and comes on when pressure is around 2psi (normal is up to 100 psi). Link to comment Share on other sites More sharing options...
chillij715 Posted December 25, 2010 Share Posted December 25, 2010 I wouldn't be surprised if you are screwed. +1 not changing the oil..it will breakdown and not do its job,chances of a rebuild should of spent the $40 on an oil change instead of internals hopefully its not to bad for u Link to comment Share on other sites More sharing options...
bmx045 Posted December 25, 2010 Share Posted December 25, 2010 ...what the above posters mean to say, in simple terms...running the oil low/extended periods of time will cause vital internal parts to not get lubricated enough causing excessive wear and sometimes damage. Hearing a knocking sound is a sign of bad things and the low oil level and heavy driving might have terminally damaged some of the bearings in the engine. You will probably need to rebuild the engine...however since we cannot hear it ourselves, find a reputable shop or mechanic and explain and let them listen to the knock for a final answer. Link to comment Share on other sites More sharing options...
Stang70Fastback Posted December 25, 2010 Share Posted December 25, 2010 At this point I think most people are going to ask why you went 7,000 miles past what you consider to be a "reasonable oil change interval" and never at least bothered to check the level? What is the total mileage since your last oil change? Link to comment Share on other sites More sharing options...
never summer Posted December 25, 2010 Share Posted December 25, 2010 That's ridiculous, you obviously don't care about your car. Good luck anyway. Link to comment Share on other sites More sharing options...
atbsuby413 Posted December 26, 2010 Author Share Posted December 26, 2010 Yes. I am screwed and I always have done oil change around 5,000...I do love my car and have neglected it and I guess I deserve the damage done...will have it checked out...i agree with all your comments above and hope I haven't screwed myself to bad...i Link to comment Share on other sites More sharing options...
burnout8488 Posted December 26, 2010 Share Posted December 26, 2010 You aren't being clear on whether you did a 7,000 mile oil change interval, or 7,000 miles over your regular change interval. If it was simply a 7000mi interval, most dino oils can take that. Not a GREAT idea by any means, but 7000mi would not kill your engine. If it's been something like 12,000mi, then you might be in trouble. Link to comment Share on other sites More sharing options...
lee07 Posted December 26, 2010 Share Posted December 26, 2010 You have to check and/or change the oil even if it's -20 outside, Don't be like most drivers who say" I'll do it in the Spring when it's warmer out". By then You've gone too many miles over or will almost have no oil left! Now I got to go check my oil level, it's 5 below out right now! Link to comment Share on other sites More sharing options...
atbsuby413 Posted December 26, 2010 Author Share Posted December 26, 2010 I am over about 9,000 which I never do..I have no excuses why I didn't change it..I added 2 1/2 bottles of oil which is bad...and it is cold and driving it is most likely not the best for it...I am 31 years old..I know when to change my oil...life has been a bit out of control lately, which happens to all of us...enough for me to neglect my wonderful Legacy... I should be beaten to a bloody pulp...any other signs of damage I can look for, color/junk in the oil? etc... Link to comment Share on other sites More sharing options...
I Donated thefultonhow Posted December 26, 2010 I Donated Share Posted December 26, 2010 Yeah, 2.5 quarts down is a lot. That's over half our total capacity. If it's a bearing, you won't see the biggest chunks, because there's a strainer in the oil pan right next to the drain plug. Dropping the pan would show you, but that requires a hoist. Rod knock is another possibility, and valvetrain issues is yet another. If you don't have the know-how to pull your engine, you should probably take it to a mechanic no matter what. Link to comment Share on other sites More sharing options...
snajper69 Posted December 26, 2010 Share Posted December 26, 2010 Length of the interval has nothing to do with the damage done to the engine, what OP failed to do is check his oil on regular basis, if you would be doing that and topping it off than you could easily do even 15k interval on any dyno oil, it's a fact. 2.5 na are easy on the oil. By extending your interval your engine was burning the oil faster than a freash oil this is why it is recomended to check your engine oil level every time you fill up your gas. OP how often did you check your oil level? For any driver out there you don't check your oil level at least one time a month or every fill up, than you are asking for trouble. It takes 15 seconds to check your oil level it takes about 2 minutes to fill up your car so enough time to check all fluid levels. Link to comment Share on other sites More sharing options...
atbsuby413 Posted December 26, 2010 Author Share Posted December 26, 2010 I always check once a month..except for last few months.. i have failed...bearing is blown for sure and will just deal with my own stupidity...thanks for all the comments good and bad...quite disgusted with myself! Link to comment Share on other sites More sharing options...
apexi Posted December 27, 2010 Share Posted December 27, 2010 What's with people pouring salt in the wound? Give the guy a break. I would recommend taking your car to the dealer or a subaru specialist so that they can diagnose the noise. Link to comment Share on other sites More sharing options...
boymk123 Posted December 27, 2010 Share Posted December 27, 2010 neglect the car and post questions about the breakdown here in this forum is just a wrong idea... very wrong I'm sorry for your loss... Have the dealer tear the engine apart and check the internal components...or an experienced mechanic should know what's wrong after a short drive.. good luck Link to comment Share on other sites More sharing options...
atbsuby413 Posted December 27, 2010 Author Share Posted December 27, 2010 This is part of my punishment for being stupid, and putting off a simple oil change, now a have a much bigger issue which I have no money to fix it...I still owe 7k on the car...fixing it or trading it are my options...and moving on with life.. Link to comment Share on other sites More sharing options...
oldschoolimport Posted December 28, 2010 Share Posted December 28, 2010 I'm rebuilding mine now. I got it at 74k, and 5k later, it spun a bearing. Every bearing was down to copper. The crank and 1 rod are trash. I also found 3 pistons with cracked ringlands, and a turbo about to puke its guts up. With me and a friend doing the work, I'm looking at around $1300. Link to comment Share on other sites More sharing options...
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