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DEI37 · 10-10-2004, 03:20 PM

That's how they get away with longer oil changes. You could do that with standard oil and get longer changes, really. Not THAT much longer, but a little. I change my oil every 3000 miles. I use a synthetic blend formulated for Saab's. I would NEVER go more than 10,000 miles on an oil change, regardless of what kind of oil I was using. Mobil1 is almost five times the cost of standard Mobil oil, in the same weight. So, if you have a five quart engine, and you pay $1/qt for Mobil, and $4.79/qt for Mobil1, you've got to go some 15,000 miles per oil change. If you add on to that, the 1/2 - 3/4 of a quart, sometimes more, that you have to add when you change the filter at $4.50, then you're not saving any money at all. In my opinion, 3-5,000 mile oil changes on regular oil is absolutely fine. Use a good quality oil with a good filter, and you'll be good to go.

10-10-2004, 03:20 PM	#9 (permalink)
DEI37 Go faster! Location: Wisconsin	That's how they get away with longer oil changes. You could do that with standard oil and get longer changes, really. Not THAT much longer, but a little. I change my oil every 3000 miles. I use a synthetic blend formulated for Saab's. I would NEVER go more than 10,000 miles on an oil change, regardless of what kind of oil I was using. Mobil1 is almost five times the cost of standard Mobil oil, in the same weight. So, if you have a five quart engine, and you pay $1/qt for Mobil, and $4.79/qt for Mobil1, you've got to go some 15,000 miles per oil change. If you add on to that, the 1/2 - 3/4 of a quart, sometimes more, that you have to add when you change the filter at $4.50, then you're not saving any money at all. In my opinion, 3-5,000 mile oil changes on regular oil is absolutely fine. Use a good quality oil with a good filter, and you'll be good to go. __________________ Generally speaking, if you were to get what you really deserve, you might be unpleasantly surprised.