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Joined: May 2000
Posts: 3,636
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I think the only truely sealed engines run on Uranium  The last car I had that vented crankcase gasses directly to the atmosphere was my 1966 Chevy Nova. Crankcase gasses are now sent back into the intake for combustion. Heck, even exhaust gas is sent back through the intake to reduce NOx pollutants. TB
Tony Boner Personal: 98cdw27@charter.net Work: tony.boner@sun.com Saving the computer world from WinBloze as Unix/Solaris/Java Guru http://www.sun.com 1998 Contour SVT Pre-E1 618/6535 Born On Date: 4/30/1997 Now with Aussie Bar induced mild oversteer.
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Joined: Jul 2000
Posts: 235
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Driving habits and once the engine is started driving it at least 10 miles to evaporate water etc. is essential. I go anywahere from 5000 to 12,000 miles between changes but it depends on the car and conditions. Not al cars can go extended drains even with synthetic. By the way, there are rumors out there that the new Mobil 1 formula has fewer ani wear additives and is not as good as the older version. they are looking towards the new requirements post SL oils and more concern fo emissions, mpg and cat dmage then long term wear. This is a great oil site by the way. Pretty much unbiased from what I can see http://theoildrop.server101.com/index.htm
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Joined: Dec 2001
Posts: 237
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And the BMW's are sealed engines. Only BMW dealerships are supposed to change the oil every 10k. I personally don't get how it's air tight, but that's what was said. Makes sense, that if the engine is airtight, no oil changes are necesary for 10k. I never heard of BMW engines being sealed (but I don't claim to know everything). As for me, I have a 1993 BMW 318i and the engine is definitely NOT sealed. Anyone can change the oil. At first, I used to take it to the dealer, but at $50-$60 a shot, I changed that fast. And, as far as I know, they didn't put in synthetic. I then started taking it to a third-party BMW service center (which was about $35 a shot). Now I just take it to Walmart (and bring my own filter). I would do it myself, but it's more trouble than it's worth (especially since Walmart can do it for ~$13).
1996 Contour SE Sedan 4D (Royal Blue)
Duratec V6 2.5L 24-valve DOHC
Automatic
75,000 miles
No Mods (unless you call the DMD a mod)
Replaced EGR valve (gunked up), EVR (EGR VR), PCV valve, and evaporative emissions hose (cracked).
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Joined: Jun 2000
Posts: 1,038
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what is this blackstone lab?
you send em your used oil and they tell you how good it looks?
website?
how much?
-jason
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Joined: Sep 2000
Posts: 8,142
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Posts: 8,142 |
Originally posted by Wthermans: I change my oil every 2000 miles...I like to keep my car happy...  And your credit card busy....
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Joined: Jul 2000
Posts: 291
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I get mine oil changed about every 2 months or so (around 5K) at walmart with mobil one 5W30 (yeah I just use the crappy fram filter they put in there.
moxnix
2000 Silver SE Sport V6 MTX, B&M shifter, SVT exhaust, 75K on the clock.
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Joined: Jun 2000
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My Porsche goes 15,000 miles between oil changes. It's also got 10 quarts of oil, so when it is time to change the oil, it costs a bit extra.  My mom's Mercedes has a light that pops on when the computer determines it's time to get the oil changed, depending on driving conditions and such. We got concerned that the light never came and changed it prematurely, but it was unnecessary, considering the way she drives.
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Joined: Jul 2000
Posts: 778
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Originally posted by Wthermans: I change my oil every 2000 miles...I like to keep my car happy... You change your oil every 2000 miles to keep yourself happy, your car really has nothing to do with it.
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Joined: Sep 2000
Posts: 7,329
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Originally posted by armtdm:
By the way, there are rumors out there that the new Mobil 1 formula has fewer ani wear additives and is not as good as the older version. Except it's the exact opposite. The new Super-Syn has an additional anti-wear package that the Tri-Syn did not have. However I have not tested the new oil. The Tri-Syn's results were outstanding. I hope the new formula is better (Especially since the price went up! :rolleyes: ) http://www.blackstone-labs.com/body_index.html
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