Does synthetic oil "expire?"
#1
Burning Brakes
Thread Starter
Does synthetic oil "expire?"
Advance auto parts currently has a great deal going on any type of Mobil 1 (including the Extended Performance 15k mile stuff I just put in my car)--$29.99 for 5 quarts and filter. As I am not sure if this deal will be in effect the next time I change my oil (probably in 7500 miles/1 yr) I was wondering if it would be OK to buy some more now and keep it in my garage until next spring.
#2
Ackniculous One
Join Date: Jun 2003
Location: ATL Shawwwwtyyyy
Age: 50
Posts: 3,100
Likes: 0
Received 8 Likes
on
7 Posts
great question, i wondered this too. I have alot of 4/10's of a quart laying around from when i do my 4.6qt oil changes lol. I may have enough to get me 4.6 quarts with those. Walmart has the 5W-20 full synthetic mobil 1 five quart jub for $26 even here in ATL..just did my oil change..good deal considering the quarts themselves were $6.97 each
#3
I have read on oil sites that stored capped unopened oil is fine for a year
Had some synthetic that was older than that and used it- engine didnt seem to mind (no oil analysis done) but I did change it sooner-5000 miles
Is it that big a savings to have the oil laying around the garage for a year?
Had some synthetic that was older than that and used it- engine didnt seem to mind (no oil analysis done) but I did change it sooner-5000 miles
Is it that big a savings to have the oil laying around the garage for a year?
#4
dont hold on to the opened oil- its like brake fluid and ps fluid- absorbs moisture right from the air--bad news when you use it later
Use it to change the lawn mower oil- or do like many of us and put the 5 qts in the engine at change- thats a tick over full and will be about min level when due for next change
Better to keep at full than min- min is MINIMUM ,not -anything between here is cool
Full is what you want, engines do burn a small amount of oil in normal combustion process
Use it to change the lawn mower oil- or do like many of us and put the 5 qts in the engine at change- thats a tick over full and will be about min level when due for next change
Better to keep at full than min- min is MINIMUM ,not -anything between here is cool
Full is what you want, engines do burn a small amount of oil in normal combustion process
#5
The Advance Auto deal is good until March 25, although they usually run a similar promotion around Columbus Day. I would think unopened containers stored in reasonable conditions would be good for years. I believe Mobil 1 is a "milspec" product, so maybe someone in the armed forces might tell us how long they depot oil before it's used.
#6
Burning Brakes
Thread Starter
lol at using synthetic in a lawnmower, i'll have to try this sometime.
i dumped the full 5 qts in, hopefully used up some during the seafoam blowout drive.
the stuff i put in is currently 9 bucks a qt at advance auto, so this would save me a good 25 bucks, practically another oil change!
cjitty--haven't looked at walmart yet, do they have the mobil 1 extended performance?
i dumped the full 5 qts in, hopefully used up some during the seafoam blowout drive.
the stuff i put in is currently 9 bucks a qt at advance auto, so this would save me a good 25 bucks, practically another oil change!
cjitty--haven't looked at walmart yet, do they have the mobil 1 extended performance?
Trending Topics
#8
Moderator
Brake fluid is hydroscopic and should be discarded if it is not used immediately after opening, but most other fluids do not require the same level of care.
Mobil address this issue here:
http://www.mobiloil.com/USA-English/...es_Of_Oil.aspx
Mobil address this issue here:
http://www.mobiloil.com/USA-English/...es_Of_Oil.aspx
#9
S E L L
lol at using synthetic in a lawnmower, i'll have to try this sometime.
i dumped the full 5 qts in, hopefully used up some during the seafoam blowout drive.
the stuff i put in is currently 9 bucks a qt at advance auto, so this would save me a good 25 bucks, practically another oil change!
cjitty--haven't looked at walmart yet, do they have the mobil 1 extended performance?
i dumped the full 5 qts in, hopefully used up some during the seafoam blowout drive.
the stuff i put in is currently 9 bucks a qt at advance auto, so this would save me a good 25 bucks, practically another oil change!
cjitty--haven't looked at walmart yet, do they have the mobil 1 extended performance?
![Annoyed](https://acurazine.com/forums/images/smilies/annoyed.gif)
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
#10
Ackniculous One
Join Date: Jun 2003
Location: ATL Shawwwwtyyyy
Age: 50
Posts: 3,100
Likes: 0
Received 8 Likes
on
7 Posts
Wow man, seriously? I never thought to actually do that for fear of having to much oil in there. But, in all reality it is only 4/10's of a quart more than the 4.6qts we need. I'm doing this next time for sure! thanks for that info man
or do like many of us and put the 5 qts in the engine at change- thats a tick over full and will be about min level when due for next change
Better to keep at full than min- min is MINIMUM ,not -anything between here is cool
Full is what you want, engines do burn a small amount of oil in normal combustion process
Better to keep at full than min- min is MINIMUM ,not -anything between here is cool
Full is what you want, engines do burn a small amount of oil in normal combustion process
#11
Burning Brakes
Thread Starter
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
#12
regarding hygroscopic:
The similar-sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.
Hygroscopic material absorb moisture from the air
The oil does it, ps fluid, brake fluid. The ps and engine oil circulate and get enough temp to dry out the moisture from the fluid.
Brake fluid does not circulate- it moves a few mm then retreats. So its necessary to flush it out every year to keep perfect fresh fluid in- and keep microscopic rust particles out
The similar-sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.
Hygroscopic material absorb moisture from the air
The oil does it, ps fluid, brake fluid. The ps and engine oil circulate and get enough temp to dry out the moisture from the fluid.
Brake fluid does not circulate- it moves a few mm then retreats. So its necessary to flush it out every year to keep perfect fresh fluid in- and keep microscopic rust particles out
#13
What your problem is?
along this same subject... I found some brake fluid that i bought about a year ago... it has never been opened/used. You think it would be okay to use or should I just buy some new fluid?
#14
S E L L
Thread
Thread Starter
Forum
Replies
Last Post
IBankMouse
1G TSX (2004-2008)
8
06-13-2020 12:53 PM
lanechanger
Member Cars for Sale
4
10-13-2015 10:56 AM
kixo
2G TSX (2009-2014)
43
09-25-2015 03:07 PM