Recent Topics
Toyota OEM Cartridge Filter, Cut Open 12,669 Miles
by Nick1994
04/22/18 04:53 PM
S/C Range Rover, 5000kms 33 different oils UOA
by Vladiator
04/22/18 04:24 PM
Buying oil on price - Pricing Rant
by JHZR2
04/22/18 04:22 PM
Mix of 33 oils VOA
by Vladiator
04/22/18 04:19 PM
Sugar Binge Hangover ... :~/
by LoneRanger
04/22/18 04:18 PM
MagnaFlow 49253 Exhaust Header
by Ambition5253
04/22/18 04:14 PM
Difference between NGK BR6ES and BPR6ES ?!?
by webfors
04/22/18 04:08 PM
Griot's Garage Glass Polish leaving dried flakes
by mclasser
04/22/18 03:56 PM
Pennzoil Platinum 10W30
by turnbowm
04/22/18 03:55 PM
Adhesive for clay pot repair?
by callbay
04/22/18 03:40 PM
G35 rough start
by bowlofturtle
04/22/18 03:37 PM
Parts Master 67045 5K OCI Cut Open
by Ifixjetz1
04/22/18 03:03 PM
Best Subcompact Cars in the US & Global
by NewEnglander
04/22/18 02:41 PM
Super Tech Clearance purchase
by mctmatt
04/22/18 01:58 PM
Website Loading Issue
by sleddriver
04/22/18 01:51 PM
White List?
by BlueOvalFitter
04/22/18 01:43 PM
Troubleshooting F-250 Tranny
by dkryan
04/22/18 01:19 PM
Cabin Vibration
by artbuc
04/22/18 12:27 PM
High Mileage ATF D&F
by FriboRage
04/22/18 12:07 PM
The new Fram TG 3682
by aquariuscsm
04/22/18 12:06 PM
Newest Members
Tremendo, homeontherange, dreko, Marc32275Jax, puma4440
64809 Registered Users
Who's Online
81 registered (93cruiser, AZmike., Astro_Guy, andyd, 2015_PSD, 6 invisible), 1617 Guests and 42 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64809 Members
68 Forums
282143 Topics
4710469 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4728946 - 04/16/18 02:28 PM Is there an "in engine" shelf life for used oil?
ymc226 Offline


Registered: 10/30/14
Posts: 28
Loc: NJ, USA
I remember reading oil can age and get acidic if used even for a short while, driven only a thousand or so miles. I have 2 cars, a sports car using a synthetic Mobil 1 oil which I drive about 1-2 thousand miles yearly when there is no salt on the road and a small truck with a gas engine which I use dino oil (Rotella) as recommended by another forum to prolong tappet longevity which is driven about the same amount.

Would it be more optimal to change the oil yearly prior to putting the car/truck away so each engine will have fresh oil while they sit for 6 months?

Top
#4728967 - 04/16/18 02:41 PM Re: Is there an "in engine" shelf life for used oil? [Re: ymc226]
69GTX Offline


Registered: 09/23/15
Posts: 3742
Loc: Connecticut
I think an oil change before storage is only minimally better. And if you make it a point of driving your car 20 miles or more right before storage, it really doesn't matter if your oil has 1,000....2,000...or 3,000 miles on it. I put 1200 miles on my car annually. I change the oil in later May...to get the freshest oil in there for hotter summer driving. The oil has 800-1000 miles on it by winter time. That doesn't bother me. The Mobil 1 is probably good for 3-5 years and 5K-10K miles....but I change annually any ways. I'm more concerned about maintaining my car's low mileage engine than saving $20 per year....at least for now. Maybe in the future I'll go to 2-3 yr OCI's.

Now if you're prone to parking your car with short trips on it, or turning the engine over in winter w/o driving it 10-20 miles? Yeah, then I'd want the freshest oil in it prior to whenever the most "short trips" would occur. And idling the engine in the garage is the shortest trip possible.

The TBN of a quality oil will tend to last by mileage...not time. One exception might be excessive fuel dilution from a poorly functioning fuel delivery system. Short vs long trips and summer/winter driving factor into how quickly contaminants build up (ie TBN depletion).
_________________________
----------------

2002 Lincoln Cont 4.6L DOHC/ 81K mi /PPlat 5w30/FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs

Top
#4729046 - 04/16/18 04:16 PM Re: Is there an "in engine" shelf life for used oil? [Re: ymc226]
Dyusik Online   content


Registered: 09/26/14
Posts: 1856
Loc: US-WA
Originally Posted By: ymc226
I remember reading oil can age and get acidic if used even for a short while, driven only a thousand or so miles. I have 2 cars, a sports car using a synthetic Mobil 1 oil which I drive about 1-2 thousand miles yearly when there is no salt on the road and a small truck with a gas engine which I use dino oil (Rotella) as recommended by another forum to prolong tappet longevity which is driven about the same amount.

Would it be more optimal to change the oil yearly prior to putting the car/truck away so each engine will have fresh oil while they sit for 6 months?



This thread
My jeep just got an oil change, lost track of how many years it's been in there, I think the last OC was in 2014 sometime.
Really, how much acid can build up without introduction of oxidants? I'm sure there is a dip in TBN from it, but doubt it would be a full point. Check back in a half a dozen years when I do a UOA on the Jeep LOL
_________________________
95 Cherokee 190K DELO 10W30,XG8
07 IS250 96K FB ?w??,FULL
04 YZF-R1 18K DELO 15w40,XG7317
99 HD XL1200S 18K 76 20w50,1515
14 RX450h 30k PP 0w20,NAPAG

Top