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Old 05-19-2016, 06:24 PM   #1 (permalink)
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Default Synthetic oil .

Hay guys.
I went to different dealer for a synthetic oil change 5W-30 and know they telling that I can drive for 6,000 miles between oil change.
Previous dealer said 5,000 miles between changes.
And they found a small oil leak from oil drain plug , probably some one over tighten bolt. Dealer want to replace oil pan.Have any of you guys install quick oil drain valve ?
Would be helped to stop leak, any suggestions ?
Thank you.
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Old 05-20-2016, 05:00 AM   #2 (permalink)
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living here in NYC will all the traffic i change mine at 5k, will it hurt the car to go more? probably not.
Did they use new crush washer on the plug or reused the old one?
I've been planning on fumoto valve for years but since i change oil like twice a year there has never been any need for it.

ps. why are you going to the dealer? there are so many shops around that will do routine maintenance for much less and faster.
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Old 05-20-2016, 05:55 AM   #3 (permalink)
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Been using Mobil 1 since new, change every 5K. I believe the owner's manual says to change every 7.5k. I also installed the Fujimoto (sp?) drain plug since new. Works perfectly, no leaks.
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Old 05-20-2016, 07:19 AM   #4 (permalink)
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Hopefully the dealer was not the one who stripped the threads in the first place, if that's why they say a new pan is needed. Fortunately, replacing the bottom pan looks very easy on this engine. Thread repair with an insert could also be an option, especially if you install a drain valve and will not be stressing the threads again. If you do let the dealer tackle the pan replacement, make sure they won't strip the mounting threads in the aluminum upper pan this time around. That one could really send you up the creek. By the way, I now have Fumoto valves in both the engine and the transmission oil pans.

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Old 05-20-2016, 02:23 PM   #5 (permalink)
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I would bet on a wasted crush washer and all you need is a new one. You should be able to replace it without losing much oil if you plug the hole with your thumb and have someone else remove and replace the washer.
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Old 05-20-2016, 06:39 PM   #6 (permalink)
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So.Dodik.
Primary dealer is on in Brooklyn ,NY. First I used conventional oil till about 75K replaced every 3,5K ,than I went with synthetic replaced every 5K .Only one time I went to big car wash on 4th Ave and put Mobil 1 synthetic because dealer was booked up to the roof with service, but it was couple years ago.
Last time I went Stroudsburg PA.
avk, did you bought any S,N,L type or standard?
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Old 05-21-2016, 05:26 AM   #7 (permalink)
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I do have the type with a nipple for engine oil. Technically, it does reduce ground clearance just a little bit, but there would be tons of other trouble if the car were to run over something big enough to catch on the valve. There's a regular kind for the transmission (M18x1.5 is the thread size there).

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Old 05-21-2016, 07:06 AM   #8 (permalink)
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Today I have to add almost full quart .
I have change oil about 2 months ago and have 2K on new oil.
Searching between Fumoto and EZ oil drain.
Looks I have to replace in a bit .
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Old 05-21-2016, 04:52 PM   #9 (permalink)
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I have the fumoto valve, I highly recommend it.

As for oil, I usually go 7500 miles between changes or six months. The oil always still looks good, and our tribeca hasn't needed any oil between changes, even with the valve covers leaking. I have been using Mobil 1 high mileage, but have also used the extended performance, and a few changes worth of rotella t6. The rotella did use some oil on the first change, but afterwards it didn't use anymore.

Last edited by FLsubies; 05-21-2016 at 04:55 PM.
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Old 05-23-2016, 02:28 AM   #10 (permalink)
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When I got my Tribeca used 1 1/2 years ago with 100,000km I just automatically requested full synthetic for my oil changes and noticed 1 - 1.5 quarts needed to be added between each oil change (which were 3 to 4 months apart). After having switched to conventional 5w30 on my last change I have not had to top up any at all. I think installing a quick drain plug is a smart choice if you need to, I don't think there's any advantage to switching to full synthetic if you haven't been using it right from the start. Maybe you can fill me in on your choice to do so? As far as I understand if you've started with conventional then the "damage is already done" so to speak and you will see no benefit from the full synthetic which is 3 times more expensive, and potentially have to top up more often as you are already seeing and I had to do for the last year. Anyone else chime in here?
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Old 05-23-2016, 05:14 AM   #11 (permalink)
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Quote:
Originally Posted by EMBRAER145 View Post
And they found a small oil leak from oil drain plug ,
post a picture or tell us exactly how/where it's leaking.

crush washer - replace the washer, they're 50 cents or something.

stripped threads = loose drain plug. you should not be driving that car at all.
stripped threads is also a *caused* failure - someone stripped the threads.
Subaru oil pans don't strip without eggregious effort.

replace the pan or repair the threads with an oversized drain plug. can probably google that - i'm sure it's happened hundreds (or more) times and found it's way on the interwebs.
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Old 05-23-2016, 06:04 PM   #12 (permalink)
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Hello.
Ordered Fumoto hardware.
Planning to crawl under Beca this weekend or next following.
As about crash washer.
It supposed to be new all the time , that what I have in invoice.
Oil, oil filter and crash washer, I know is cheap I don't suspect dealer not to replace washer.
Turtles_ride.
I switch to synthetic because instead of every 3, 5K I do trip every 5K .
I could change oil by my self, but what I am going to do with used oil.
Subaru dealer told me when I do oil change from conventional to synthetic not to back again to conventional.
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Old 05-24-2016, 05:16 AM   #13 (permalink)
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any NYS certified service station is required by law to take used oil for free.

So any shop that can do an inspection, gas stations etc.

I've switched my old outback from synthetic back to regular without any issues, i think that is pretty outdated belief that you can't switch back.
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Old 05-24-2016, 06:58 AM   #14 (permalink)
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I 2nd - your can switch between synthetic and conventional as much as you like. You can even mix them.

I would look for a new shop. This one sounds pretty sketchy. Oil change listed in the manual is every 7.5k. 3k if sever. Does not differentiate between conventional or synthetic.

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Old 05-25-2016, 01:32 PM   #15 (permalink)
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I do my own oil changes too. Buy a multipack of Subaru filters online and they always come with a new crush washer. I went with Shell T6. No noticeable oil burning. Absolutely love the engineering of Subaru. Going to pull the trigger on an STI for me at the end of the summer.
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Old 06-06-2016, 05:40 PM   #16 (permalink)
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Hello everyone.
I did my project over the weekend.
Drain oil, try to wind up Fumoto valve and I could not.
Thread on oil drain plug and pan are eaten and put back original plug.
I try to do pictures of both but did come in good quality.
I made picture how leak look like.
Than I went to dealer to order oil pan and bond.
Dealer gave me 10% discount on parts plus free oil pan swap and free new oil and filter.
I think that is pretty okey.
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Old 06-06-2016, 06:38 PM   #17 (permalink)
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There is definitely no issue swapping between oils. As for benefits, if you don't know them by now you have made a conscious choice not to know. It is literally an Internet search away...years worth of reading on the subject. Bottom line is it doesn't matter what oil you use as long as it gets changed when it's needed. The interval changes based on the oil used. Uoa is the only real way to know how good your oil and engine are getting along
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Old 06-07-2016, 07:25 AM   #18 (permalink)
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Good luck on changing the oil pan! Hopefully its as easy as it seems! My concern is always cleaning well enough that the bond sticks.
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Old 06-09-2016, 08:23 AM   #19 (permalink)
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it looks like something has struck that oil pan before - someone tried to lift the vehicle with it or something.

haven't done an H6 in the vehicle before but H4 SUbaru's need the engine lifted to change the oil pump due to internal baffles interfering with the sump. the H6 set up is different and simpler so hopefully it's a drop and go affair. i've changed them before but only out of the vehicle.
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Old 06-12-2017, 10:44 AM   #20 (permalink)
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Just put on a new Fumoto oil drain valve on the Tribeca. Went on easily with no leaks so far.
The STI has had one for about six months now. Very convenient.
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