Safe to put SYNTHETIC oil in a ~70K car that has been running conventional??

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11-01-05, 01:14 PM

#16

Cloud9

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Quote:

Originally Posted by nnnickkk

i switched my car to mobil 1 synthetic at 127k and my car burns so much oil. i put in at least 4 quarts between oil changes.

thats quite a bit of oil nick. You should get it checked out.

From my experience, I believe the previous owner of my car used conventional oil. After I bought it, I switched it to Mobil 1 synthetic and had some really good results and cleaned out the innards of the engine (along with some seafoam) - ie better gas mileage, smoother idle, etc. I burn about 1 quart of oil every 4,000 miles which is not bad.

as for oil filters, most people say OEM is best and I agree.

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11-03-05, 12:22 PM

#17

newr

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if you change your oil regularly at 3-5K miles, I would just stick with conventional oil. Unless you race and have high reving engine, then go for synthetic.