Saturday, December 26, 2009

How critical is 'time passed 'compared to 'mileage' on your motor oil?

My mother bought a new Nissan last summer and I just found out she has not had the oil changed yet, BUT it only has 1,900 miles on it. (Yeah, she doesn't drive much) Is time passed really that crucial? I think of all the cars that sit on lots for months and months and they don't get oil changes every 3 months like we have been told. Thanks in advance.How critical is 'time passed 'compared to 'mileage' on your motor oil?
bepends on how the 1900 miles were accumulated... and how much condensation had developed in the oil pan..How critical is 'time passed 'compared to 'mileage' on your motor oil?
MOTOR oil will not lose its value to lubricate an engine just by being idle or not running,so unless there is no moisture to enter and mix with the engine oil and surrounding temperature of the engine is normal ,engine oil will not be affected b by time passed ....hope this helps ...ok?
Be safe and get it change!


If the car is not driven enough, the oil gets old (in a matter of speak)


If the car is driven enough, the oil gets used and dirty.





So either way it must b changed.
Time has nothing to do with the oil change interval. Oil doesn't go bad sitting the oil pan. I change my own oil every 5k and all my vehicles have over 100k on them. My 96 chevy blazer has 178k on it and has never had the oil changed less than 5k intervals. The 3k/3month interval is outdated and was mostly pushed by the oil companies.


rkb
I'm no expert on Nissans, but I'll say it's prob not a big deal. If it sat that way all winter, then it might be ready for an earl change.





Humidity can affect your earl. Moisture in the air can condense on the inside of the engine and then accumulate in the sump. When the weather cycles between hot and cold, rainy or dry, sunny and snowy, it can cause condensate to accumulate.





The recomended interval of 3 months or 3000 miles is a general rule of thumb for cars driven every day and not neccessarily engraved in stone. If it ain't getting a lot of miles then it's no biggy. If it's parked in a garage then it's even less a cause for concern.





Still, a year without an earl change CAN be too much just because of the changes in weather described above.
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