I know this might have been answered just looking for a quick yes or no. I forgot I had some mobil 1 extended performance 5w-20 that I bought probably 2 years ago sitting on the shelf in my garage. Gets between 30s-high 90s in there between the winter and summer. Is it still safe to use? Thanks in advance
shelf life?
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Yes.
the pennzoil people say oil is perfectly fine in your garage for 5 years, even with extreme temps. im sure it would be fine even longer than that
Two years?
Heck, people on here have used oil more than a decade old, with good results.
There was a guy who used some ancient Shell Fire & Ice in his wife's car, and did a used oil analysis that showed very good results.
Two years is nothing.
Use it without question.
Heck, people on here have used oil more than a decade old, with good results.
There was a guy who used some ancient Shell Fire & Ice in his wife's car, and did a used oil analysis that showed very good results.
Two years is nothing.
Use it without question.
Heck, lots of stores(think K-Mart) have oil older than that. I'm using 4-5 yr old oil in my Dakota now.
thanks guys. I figured it was okay, just wanted to check with the powers that be on here first. Bought it for my old mustang but the 5w-20 is recommended for my honda as well if I'm not mistaken. I'm assuming a 6000-8000 mile OCI on a 4 cylinder honda like this wouldn't be a stretch for a general mix of city/highway driving on this oil?
Just shake it really well and let it sit for a while before you use it. In case of additive fall out sitting at the bottom of the bottle. That is about it. Use it!
You want to make sure that you do not do this with a Conventional oil because the VII's will wear out in a conventional oil with temperature changes, although 30-90 is not very much of a temperature change. Here we have temperatures changes of -10 to high 90's. I would just make sure you keep your oil that is not being used in your house from now on so that it only see's minimal temperature changes and you never have to worry about this again!
VIIs "wear out" in conventional oil that is stored in Idaho? Can you support that claim? Cycling through that temperature range (and further) occurs more times in one season by running the oil. Daily trips at -10 ambient for thirty days results in 60 cycles through that temperature range if the engine cools between the legs of the trip. For the range you describe, you would need to store the oil for 60 years to equal one month.
Originally Posted By: GMorg
VIIs "wear out" in conventional oil that is stored in Idaho? Can you support that claim? Cycling through that temperature range (and further) occurs more times in one season by running the oil. Daily trips at -10 ambient for thirty days results in 60 cycles through that temperature range if the engine cools between the legs of the trip. For the range you describe, you would need to store the oil for 60 years to equal one month.
It is not just because of the changes in temperature that is bad for the oil, but also just the fact that it is in cold weather.
Originally Posted By: DR. Haas
Oils form waxes in icy cold weather. There is a permanent thickening of the oil.
Found here BITOG I don't know about you but I would rather be safe than sorry.
VIIs "wear out" in conventional oil that is stored in Idaho? Can you support that claim? Cycling through that temperature range (and further) occurs more times in one season by running the oil. Daily trips at -10 ambient for thirty days results in 60 cycles through that temperature range if the engine cools between the legs of the trip. For the range you describe, you would need to store the oil for 60 years to equal one month.
It is not just because of the changes in temperature that is bad for the oil, but also just the fact that it is in cold weather.
Originally Posted By: DR. Haas
Oils form waxes in icy cold weather. There is a permanent thickening of the oil.
Found here BITOG I don't know about you but I would rather be safe than sorry.
Just for grins and giggles, Valvoline sez (of their own products, of course):
Quote:
The Valvoline Company does not have a documented shelf life exposure on finished motor oil or ATF. We would expect under optimal conditions that the product would be stable for an extended period of time. We recommend two things: 1) Make sure the rating meets or exceeds your requirements, and 2) Shake the container before use. If the fluid sets, sometimes the additives may settle in the bottom of the container.
Quote:
The Valvoline Company does not have a documented shelf life exposure on finished motor oil or ATF. We would expect under optimal conditions that the product would be stable for an extended period of time. We recommend two things: 1) Make sure the rating meets or exceeds your requirements, and 2) Shake the container before use. If the fluid sets, sometimes the additives may settle in the bottom of the container.
I do not know of any waxes that "form" at low temps. Waxes that are in oil can precipitate at low temperature. They do not necessarily rush back into solution when the temperature is raised in the ambient range. They will however go back into solution if the oil is heated.
In any case, I was curious about VIIs "wearing out" in "conventional" oil due to temperature changes. If this is the case, I would like to understand the phenomenon. If it is not actually the case, then my curiosity has been misplaced.
In any case, I was curious about VIIs "wearing out" in "conventional" oil due to temperature changes. If this is the case, I would like to understand the phenomenon. If it is not actually the case, then my curiosity has been misplaced.
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