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Old 12-11-2017, 06:49 AM   #21
FC
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MObil 1 Extended performance is supposed to be decent. That’s what I use.
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Old 12-11-2017, 07:07 AM   #22
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Originally Posted by Nick M3 View Post
Why would you put better oil than M1 in a Miata?
Because you have to rev the piss out of the engine to get it to go anywhere? Because you plan to keep it a long time? I put good oil in all of our vehicles
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Old 12-11-2017, 08:55 AM   #23
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Because you have to rev the piss out of the engine to get it to go anywhere? Because you plan to keep it a long time? I put good oil in all of our vehicles
Is there any chance in hell that FC keeps the Miata for 200-300,000 miles, which is around the point when it *might* matter that M1 is not necessarily the absolute best oil in existence?
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Old 12-11-2017, 03:12 PM   #24
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i'd love to see the difference in "wear" or oil "ageing" by analysis if, for example, FC did not change the oil and let the car sit over the winter.
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Old 12-11-2017, 03:20 PM   #25
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i'd love to see the difference in "wear" or oil "ageing" by analysis if, for example, FC did not change the oil and let the car sit over the winter.
Yeah, me too. Can you do the snow blower also please.
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Old 12-11-2017, 04:36 PM   #26
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wouldn't the main concern be with an older engine that there could be fuel contaminant in the oil?

beyond that, the synthetic polymers would not have broken down.

and the mileage is too low for any colloidal-type of particulates to build up.
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Old 12-12-2017, 07:30 AM   #27
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wouldn't the main concern be with an older engine that there could be fuel contaminant in the oil?
And moisture. I think that once/year is all the further I'd let it go.

It costs all of $30 and an hour of your time to change the oil. Plus it's a chance to tinker around in the garage. In my mind, it's not even a question of should I?, but when can I start?.
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Old 12-12-2017, 07:56 AM   #28
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Moisture in the oil isn't really a problem that needs to be solved with an oil change. Just get the car up to temperature and the moisture will go away.
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