Hi I have a Gallon of unopened motor oil in my trunk that has been there for i dont know how long,..im thinking not over a year...It has the seal and all still on it....do you think its still ok to use?
2006-07-08 16:52:32 · 9 answers · asked by Terry J 2 in Cars & Transportation ➔ Maintenance & Repairs
Also I have a 1998 4cyl econo box..do you think i should switch to synthetic or just use good old fashioned oil...and ive been buying the "max life" oils do you think they really help?
2006-07-08 17:07:11 · update #1
The oil is still good just make sure that if you have a newer car that it meets the API specs. The new spec is GF-4. If the oil is not GF-4 and you have a 2005 or newer car dont use it. If your car is older than 2005 go ahead. As far as the maxlife yes it does work. Valvoline was the pioneer to high mileage oils. Since then all the oil companies have made it. But remember it is meant to recondition the valve seals and what not. It is not meant nor will it work on oil leaks.
2006-07-08 18:08:04 · answer #1 · answered by rwings8215 5 · 0⤊ 0⤋
You have a Gallon of unopened motor oil in your car trunk that has been there for not over a year...It has the seal and all still on it....do I think its still OK to use?
Lets see...That would be a... yes.
Of course it 'has' been " in your car for more than 3000 miles....(not in engine) oh yeah, seal and all.
Lets see....Yeah still good.
As far as Synthetic oils go. You are wasting your money to switch. If it doesn't call for synthetic, Use your regular brand of motor oil as recommended by your Manufacturer.
If you have a high mileage engine you might go with a 10-40 but that will decrease your gas mileage a bit while cutting back on oil burning in your engine. Maybe run a bit quieter...
So: If you don't have to add oil between changes stick with your 5-30 or 10-30 whatever your manufacturer recommends.
Yours: Grumpy
2006-07-08 17:58:18 · answer #2 · answered by Grumpy 6 · 0⤊ 0⤋
Yes motor oil does "expire", after 30 days exposed to oxygen it starts to lose it's detergent quallities. It doesn't go bad, it's just not as good as it was. You allready have that gallon, use it for your next oil change then go find out (or bend over) how much synthetic oil costs.
2006-07-09 15:54:21 · answer #3 · answered by Bad Andy 7 2 · 0⤊ 0⤋
yes usually in 2-5 thousand miles unless it is synthetic oil,,and it last at least 8000 miles,,but yes it does break down,,and it is not good for any engine to run it that long,,because oil takes away friction,,and also help,s carry some heat away,,when it get,s dirty it can,t function as well as if it were new,,do this for a living,,hope this help,s.,if it,s new oil,,you can probably keep it for year,s,,and still use it,,it should be OK.
2006-07-08 16:59:54 · answer #4 · answered by dodge man 7 · 0⤊ 0⤋
Yes it's ok to use, motor oil doe's not have a shelf life, it's only no good after so many miles of use in your engine.
2006-07-08 17:07:20 · answer #5 · answered by mister ss 7 · 0⤊ 0⤋
Heck yeah..... use it with no worries....., as for high mileage oils.... valvolines isn't thicker as the others are, and it just has retained the SL rated oils additive levels..... and contains extra seal conditioners. Doesn't really help unless your using oil. Stick with conventional, its been doing fine for you.
2006-07-08 19:32:56 · answer #6 · answered by 572ci. 5 · 0⤊ 0⤋
just think that oil is older than you think prob. close too 2.5 million yrs old whats another year its still good use it up.
2006-07-08 17:35:48 · answer #7 · answered by me too 6 · 0⤊ 0⤋
No problem.
2006-07-08 16:56:06 · answer #8 · answered by cranksinatra 3 · 0⤊ 0⤋
yep use it
2006-07-08 16:56:59 · answer #9 · answered by Kamaliez T 4 · 0⤊ 0⤋