- #261 of 491
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Re: Oil drain [plekto]
by gregg_vw
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Jun 06, 2008 (11:41 am)
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Replying to: plekto (Jun 06, 2008 10:14 am)
But not if you are not supposed to. All engines are different these days than from back when 3K oil changes were recommended. If the engine breaks in better with what the manufacturer installs the first time, why would you dump that and risk things not seating right? Not to mention the unnecessary waste of the oil.
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- #262 of 491
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Re: Oil drain [gregg_vw]
by dmathews3
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Jun 06, 2008 (1:30 pm)
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Replying to: gregg_vw (Jun 06, 2008 11:41 am)
Some people still think this is 1960 and don't want to move up into the current times. AM and 8 tracks are dead and so is changing oil at 50 miles.
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- #263 of 491
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Re: Oil drain [gregg_vw]
by plekto
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Jun 06, 2008 (2:06 pm)
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Replying to: gregg_vw (Jun 06, 2008 11:41 am)
The thing is, that with new engines, 75% of seating the rings happens in the first 50 miles. After that, the bits that were taken off - that fine grained metal dust - is floating around in the oil causing wear to the other parts. This is as you might imagine, not a very good thing.
Technically you don't need to change the oil. You need to change the *filter* so that it isn't half-clogged with these particles. And yes, the oil that comes out from the first change usually has grit in it that you can actually feel if you rub it between your fingers.
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- #264 of 491
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Re: Oil drain [plekto]
by gregg_vw
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Jun 07, 2008 (6:13 am)
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Replying to: plekto (Jun 06, 2008 2:06 pm)
One last time...that used to be true. It ain't anymore. If you want to change your oil at 50 mi, be my guest. But I will do what is recommended to take care of and extend the life of my new engine longest. If I am supposed to leave in the factory oil mix for x miles, there is an engineering reason for it. "It stands to reason" and other arguments don't apply. If you do not know why there are now recommendations against early oil changes, then why not find out?.
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- #265 of 491
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Oil drain
by mmm1
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Jun 07, 2008 (1:13 pm)
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I would still appreciate knowing if Mobil 1 is recommended by the manufacturer or if it is a personal preference. Thanks.
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- #266 of 491
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Re: Oil drain [gregg_vw]
by dennismau
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Jun 07, 2008 (5:16 pm)
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Replying to: gregg_vw (Jun 07, 2008 6:13 am)
I always change the oil in my new cars at 1000 K miles for the reason of metal bits and particles floating around in the oil. I changed the oil in my new Smart Car at 1200 miles and it was full of fine metal particles. Now you can not tell me if you leave those in the engine for 10 K miles that they are not going to damage the engine. I say change that new car oil at 1 K miles and be safe!
Dennis
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- #267 of 491
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Mobil 1
by scottl
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Jun 07, 2008 (10:52 pm)
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Mobil 1 is 'recommended' by smart per this press release:
http://www.reuters.com/article/pressRelease/idUS130408+07-Apr-2008+BW20080407
If you read it carefully, the reality is that Mobil 1 may or may not be what the factory puts in the car. However, synthetic is definitely recommended. The smart takes only 3.5 quarts for an oil and filter change, and the recommended interval is 10,000 miles. I would never let MY car go 10,000 miles, but maybe you would.
The engine is the 2008 smart is made by Mitsubishi. The filter is a Mitsubishi filter. smart puts their name on it and charges over $20 for it. Yeah, right. There are many alternatives. None cost over $8.
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- #268 of 491
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Re: Oil drain [dennismau]
by gregg_vw
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Jun 08, 2008 (10:12 am)
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Replying to: dennismau (Jun 07, 2008 5:16 pm)
Those "fine metal particles" may be the very thing that helps seat the seals and valves best, for all you know. If what you say was true, then mechanics and engineers would be recommending that new high tolerance engines have a change at 1,000 mi. They don't. Some manufacturers insist that you do NOT remove the additives put in at the factory for 10,000 mi. I realize no one can apparently tell you anything, but you could find out for yourself, if you put a little effort into reading the research.
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- #269 of 491
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Re: Oil drain [gregg_vw]
by dennismau
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Jun 08, 2008 (11:19 am)
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Replying to: gregg_vw (Jun 08, 2008 10:12 am)
I really don't think fine metal particles are going to seal your valves. They are going to scratch the internal components of your engine because they are going to move around. Just thought I would give my observation when I changed my oil on my Smart Car. I also asked the Dealer at Smart in Denver Colorado and they said it definitely wouldn't hurt to change your oil at1000 miles. I guess it'up to each individual person what they want to do. But let me tell you the oil looked bad at 1000 miles. Now with that Mobil1 0-40W in their it runs smoother and purrs like a kitten. I think you are trying to avoid changing the oil by convincing your self you don't need to. But in the back of your mind you know you really should. Just go get the oil and change it! You will sleep better tonite!
Dennis
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